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US20140131610A1 - Method for welding components with a closed hollow cross-section in such a way that a peripheral gap is produced between the two overlapping components - Google Patents

Method for welding components with a closed hollow cross-section in such a way that a peripheral gap is produced between the two overlapping components Download PDF

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Publication number
US20140131610A1
US20140131610A1 US14/071,880 US201314071880A US2014131610A1 US 20140131610 A1 US20140131610 A1 US 20140131610A1 US 201314071880 A US201314071880 A US 201314071880A US 2014131610 A1 US2014131610 A1 US 2014131610A1
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US
United States
Prior art keywords
housing component
housing
component
gap
welding
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
US14/071,880
Inventor
Ferdinand Huemmer
Christof Vogel
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Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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Filing date
Publication date
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Priority to US14/071,880 priority Critical patent/US20140131610A1/en
Publication of US20140131610A1 publication Critical patent/US20140131610A1/en
Abandoned legal-status Critical Current

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K27/00Construction of housing; Use of materials therefor
    • F16K27/10Welded housings
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K33/00Specially-profiled edge portions of workpieces for making soldering or welding connections; Filling the seams formed thereby
    • B23K33/004Filling of continuous seams
    • B23K33/006Filling of continuous seams for cylindrical workpieces
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00Working by laser beam, e.g. welding, cutting or boring
    • B23K26/20Bonding
    • B23K26/21Bonding by welding
    • B23K26/24Seam welding
    • B23K26/244Overlap seam welding
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00Working by laser beam, e.g. welding, cutting or boring
    • B23K26/20Bonding
    • B23K26/21Bonding by welding
    • B23K26/24Seam welding
    • B23K26/28Seam welding of curved planar seams
    • B23K26/282Seam welding of curved planar seams of tube sections
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M61/00Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
    • F02M61/16Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
    • F02M61/168Assembling; Disassembling; Manufacturing; Adjusting
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K2101/00Articles made by soldering, welding or cutting
    • B23K2101/006Vehicles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K2101/00Articles made by soldering, welding or cutting
    • B23K2101/04Tubular or hollow articles
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M2200/00Details of fuel-injection apparatus, not otherwise provided for
    • F02M2200/80Fuel injection apparatus manufacture, repair or assembly
    • F02M2200/8084Fuel injection apparatus manufacture, repair or assembly involving welding or soldering
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00Metal working
    • Y10T29/49Method of mechanical manufacture
    • Y10T29/49405Valve or choke making
    • Y10T29/49412Valve or choke making with assembly, disassembly or composite article making
    • Y10T29/49416Valve or choke making with assembly, disassembly or composite article making with material shaping or cutting
    • Y10T29/49421Valve or choke making with assembly, disassembly or composite article making with material shaping or cutting including metallurgical bonding
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00Metal working
    • Y10T29/49Method of mechanical manufacture
    • Y10T29/49826Assembling or joining
    • Y10T29/49908Joining by deforming
    • Y10T29/49925Inward deformation of aperture or hollow body wall
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00Metal working
    • Y10T29/49Method of mechanical manufacture
    • Y10T29/49826Assembling or joining
    • Y10T29/49908Joining by deforming
    • Y10T29/49925Inward deformation of aperture or hollow body wall
    • Y10T29/49927Hollow body is axially joined cup or tube

Definitions

  • the present invention relates to a method for joining components having a closed hollow cross section, and to a housing for an injection valve that is manufactured in accordance with the method according to the present invention.
  • the joining region between the two components is designed in such a way that an inside dimension of a first component participates in a press fit with an outside dimension of a second component. No gap is therefore provided in the joining region between the two components.
  • problems occur at the weld seam if the two components do not have a clean surface.
  • the components can have, for example, residues of lubricants, for example oil or naphtha, on the component surface. These residues are thus present in the joining region between the first and the second component. These residues then outgas upon welding and, for lack of any other possibility, escape through the weld bath.
  • the method according to the present invention having the features described herein, for joining two components having a hollow cross section has, in contrast, the advantage that leaks cannot occur at the weld seam.
  • a first component to be joined and having a closed cross section has an inside dimension that is larger than an outside dimension of a second component to be joined and having a closed cross section in such a way that a peripheral gap is present between the inside dimension of the first component and the outside dimension of the second component.
  • This gap enables any residues present on the surfaces of the components to be joined to outgas at the beginning of the welding operation, so that said residues cannot result in problems as the welding process proceeds.
  • Outgassing occurs because of the heat evolved during welding, and is complete before the welding beam encounters any residues that may be adhering to the wall surfaces of the components.
  • the gap closes up during the welding operation because of the heating and softening of the joining regions of the components, so that a defect-free weld is possible.
  • the peripheral gap may have a uniform thickness respectively along its circumferential direction and along its length in the direction of a center axis of the components. A continuous and reliable welding operation can thereby be ensured.
  • the gap is embodied in tapering, in particular conical, fashion.
  • the tapering gap is embodied in regular fashion with the same geometry along its circumference.
  • the welding procedure may be laser welding.
  • first and second components to be joined may each have a circular cross section.
  • the components can be manufactured, for example, by deep drawing, or by rolling and connection at a butting point.
  • the gap may have a thickness from approx. 1/100 to approx. 50/100, and which may be approx. 1/10, of the wall thickness of the outer component to be joined.
  • the welding procedure may be embodied in such a way that the welding operation is carried out simultaneously at multiple positions by way of multiple welding devices. Processing time can thereby be reduced.
  • a compression connection region is disposed between the first and the second component adjacent to the gap region.
  • the two components to be joined can thus be inserted into one another, and are held by the compression connection region in predetermined positions relative to one another.
  • the welding operation can then begin.
  • first and the second component may be manufactured from a thin sheet material.
  • the two components may have an identical sheet thickness.
  • a housing for an injection valve that is manufactured in accordance with the method according to the present invention.
  • a housing according to the present invention for an injection valve encompasses a first housing component and a second housing component, each of which has a closed hollow cross section.
  • the two housing components are joined to one another at a joining region by welding.
  • an inside dimension of the first housing component is larger than an outside dimension of the second housing component in such a way that before welding, a gap is present between the first and the second housing component.
  • the housing may encompass a compression connection region at which the first and the second housing component are additionally connected by way of a compression connection.
  • the compression connection region may be disposed adjacent to the joining region.
  • the gap between the first and the second housing component before welding may be constituted with a uniform thickness in the longitudinal direction of the housing components, or in tapering, in particular conical, fashion.
  • a hollow cross section of the first and the second housing component may be circular in each case.
  • the housing components may be embodied in cylindrical fashion.
  • the housing components can also have an oval hollow cross section.
  • FIG. 1 shows a schematic sectioned view of a housing for an injection valve before a welding step, according to a first exemplifying embodiment of the invention.
  • FIG. 2 shows a schematic sectioned view of the housing shown in FIG. 1 , after the welding operation.
  • FIG. 3 shows a schematic sectioned view of a housing for an injection valve before a welding step, according to a second exemplifying embodiment of the invention.
  • FIG. 4 shows a schematic sectioned view of the housing shown in FIG. 3 in the welded state.
  • FIGS. 1 and 2 A method and a housing according to a first exemplifying embodiment of the invention will be described in detail below with reference to FIGS. 1 and 2 .
  • a housing 1 encompasses a first housing component 2 and a second housing component 3 .
  • the two housing components 2 , 3 are constituted as hollow cylindrical bodies having a circular cross section.
  • First housing component 2 has a uniform inside diameter I1.
  • Second housing component 3 has an end region 3 a that has an outside diameter A2. End region 3 a thus has a diameter that is somewhat smaller than a remaining diameter A2′ of second housing component 3 . Because of the reduced outside diameter of end region 3 a of second housing component 3 , a peripheral gap 6 therefore results, as shown in FIG. 1 , between first housing component 2 and second housing component 3 when the two housing components 2 , 3 are in the assembled state.
  • Gap 6 has a constant width in the circumferential direction.
  • Gap 6 furthermore has a constant length in axial direction X-X of the housing.
  • the length of gap 6 in axial direction X-X corresponds to a joining region 4 between the first and the second housing component 3 .
  • first housing component 2 is connected to second housing component 3 by laser welding.
  • Housing 1 furthermore encompasses a compression connection region 5 that is disposed immediately adjacent to joining region 4 .
  • a press fit is constituted between first housing component 2 and second housing component 3 .
  • the two housing components 2 , 3 are manufactured, for example, by deep drawing.
  • An inside diameter I1 of first housing component 2 is selected in such a way that it is larger than an outside diameter A2 of second housing component 3 at end region 3 a of second housing component 3 .
  • An outside diameter A2′ of second housing component 3 is also selected in such a way that it can participate in a press fit together with inside diameter I1 of first housing component 2 .
  • second housing component 3 is inserted into first housing component 2 . This produces a compression connection between the two housing components at compression connection region 5 .
  • a constant peripheral gap 6 having a uniform gap width in the radial direction, is furthermore produced between the two housing components 2 , 3 at joining region 4 .
  • Residues 7 are present on the surfaces of first and second housing component 2 , 3 in joining region 4 , as shown in FIG. 1 , said residues are in communication with the external environment via gap 6 .
  • Residues can result, for example, from the previous manufacturing step in which, for example, oil or naphtha is used as a lubricant for deep drawing.
  • Compression connection region 5 ensures that relative positioning between first housing component 2 and second housing component 3 is defined. Be it noted that compression connection region 5 can in principle be omitted, and the two housing components 2 , 3 can be held for the subsequent welding step using a holding apparatus. Greater technical complexity for the retaining apparatus is, however, necessary for this purpose.
  • arrow L indicates a laser beam with which the welding operation is performed.
  • Laser beam L first strikes the outer side of first housing component 2 .
  • residues 7 present on the housing surfaces in gap 6 are converted into a gaseous state. These now gaseous residues can outgas from gap 6 into the environment as indicated by arrow B in FIG. 1 .
  • the actual welding operation between first and second housing component 2 , 3 then begins, there are thus no further residues 7 on the surfaces in joining region 4 of housing components 2 , 3 .
  • FIG. 2 shows the final state of housing 1 , in which the two housing components 2 , 3 are joined to one another by welding. As shown in FIG. 2 , welded connection 8 is located approximately at the center of joining region 4 .
  • FIGS. 3 and 4 A method and a housing according to a second exemplifying embodiment of the invention will be described in detail below with reference to FIGS. 3 and 4 .
  • Identical or functionally identical parts are labeled with the same reference characters as in the first exemplifying embodiment.
  • the second exemplifying embodiment corresponds substantially to the first embodiment; in contrast thereto, gap 6 is embodied differently.
  • gap 6 of the second exemplifying embodiment is constituted by a conically tapering end region 3 a of second housing component 3 .
  • Gap 6 thus has a wedge shape in section.
  • Gap 6 is once again embodied uniformly along the circumference of second housing component 3 , and tapers from the end of end region 3 a located at first housing component 2 to compression connection region 5 .
  • FIG. 4 again shows the completed housing with welded connection 8 between first and second housing component 3 .
  • Welded connection 8 is once again disposed adjacent to compression connection region 5 .
  • outgassing of residues 7 can be enabled by the provision of gap 6 , as indicated by arrow B. Because gap 6 widens in the outgassing direction, the gaseous residues can be removed particularly reliably.
  • This exemplifying embodiment otherwise corresponds to the previous exemplifying embodiment, so that the reader may be referred to the description given there.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • General Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Manufacturing & Machinery (AREA)
  • Laser Beam Processing (AREA)
  • Fuel-Injection Apparatus (AREA)
  • Standing Axle, Rod, Or Tube Structures Coupled By Welding, Adhesion, Or Deposition (AREA)
  • Connection Of Plates (AREA)

Abstract

A method for joining a first housing component to a second housing component by welding. The first housing component and the second housing component each have hollow bodies with closed hollow cross sections. It is provided that the hollow cross sectional shapes of both components correspond. The outside dimension of the second housing component is smaller than the inside dimension of the first housing component. The second housing component is disposed in the first housing component to create a peripheral gap between an inner wall of the first housing component and an outer wall of the second housing component. The first housing component is welded to the second housing component in the region of the gap between the first and the second housing component. A housing for an injection valve that is manufactured in accordance with the method.

Description

    CROSS-REFERENCE TO RELATED APPLICATIONS
  • The present application is a divisional application of U.S. patent application Ser. No. 12/301,785, filed on May 10, 2011, which is a national phase to International Application No. PCT/EP2007/057788, filed Jul. 27, 2007, and claims priority to German Patent Application No. 10 2006 040 650.8, filed Aug. 30, 2006, all of which are hereby incorporated by reference in their entireties.
  • FIELD OF THE INVENTION
  • The present invention relates to a method for joining components having a closed hollow cross section, and to a housing for an injection valve that is manufactured in accordance with the method according to the present invention.
  • BACKGROUND INFORMATION
  • It is known to join two components having a hollow cross section by welding. In this context, the joining region between the two components is designed in such a way that an inside dimension of a first component participates in a press fit with an outside dimension of a second component. No gap is therefore provided in the joining region between the two components. It has now been found that problems occur at the weld seam if the two components do not have a clean surface. The components can have, for example, residues of lubricants, for example oil or naphtha, on the component surface. These residues are thus present in the joining region between the first and the second component. These residues then outgas upon welding and, for lack of any other possibility, escape through the weld bath. This causes the formation of pores in the weld seam which can assume, in particular, a tubular shape that can extend as far as the external surface of the weld seam. A leak can occur in the weld seam as a result; this is undesirable. The surfaces of the components to be welded must therefore be cleaned and free of residues before the welding operation.
  • SUMMARY OF THE INVENTION
  • The method according to the present invention, having the features described herein, for joining two components having a hollow cross section has, in contrast, the advantage that leaks cannot occur at the weld seam. With the method according to the present invention it is furthermore possible to dispense with a step of cleaning the surfaces to be joined before welding.
  • This is achieved, according to the exemplary embodiments and/or the exemplary methods of the present invention, in that a first component to be joined and having a closed cross section has an inside dimension that is larger than an outside dimension of a second component to be joined and having a closed cross section in such a way that a peripheral gap is present between the inside dimension of the first component and the outside dimension of the second component. This gap enables any residues present on the surfaces of the components to be joined to outgas at the beginning of the welding operation, so that said residues cannot result in problems as the welding process proceeds. Outgassing occurs because of the heat evolved during welding, and is complete before the welding beam encounters any residues that may be adhering to the wall surfaces of the components. The gap closes up during the welding operation because of the heating and softening of the joining regions of the components, so that a defect-free weld is possible.
  • Other exemplary refinements of the present invention are described herein.
  • The peripheral gap may have a uniform thickness respectively along its circumferential direction and along its length in the direction of a center axis of the components. A continuous and reliable welding operation can thereby be ensured.
  • According to another embodiment of the invention, the gap is embodied in tapering, in particular conical, fashion. The tapering gap is embodied in regular fashion with the same geometry along its circumference.
  • The welding procedure may be laser welding.
  • Particularly, the first and second components to be joined may each have a circular cross section. The components can be manufactured, for example, by deep drawing, or by rolling and connection at a butting point.
  • The gap may have a thickness from approx. 1/100 to approx. 50/100, and which may be approx. 1/10, of the wall thickness of the outer component to be joined.
  • Particularly, the welding procedure may be embodied in such a way that the welding operation is carried out simultaneously at multiple positions by way of multiple welding devices. Processing time can thereby be reduced.
  • In order to provide secure immobilization of the first and the second component during the welding operation, a compression connection region is disposed between the first and the second component adjacent to the gap region. The two components to be joined can thus be inserted into one another, and are held by the compression connection region in predetermined positions relative to one another. In a subsequent step, the welding operation can then begin.
  • Additionally, the first and the second component may be manufactured from a thin sheet material. The two components may have an identical sheet thickness.
  • The exemplary embodiments and/or the exemplary methods of the present invention further relates to a housing for an injection valve that is manufactured in accordance with the method according to the present invention. A housing according to the present invention for an injection valve encompasses a first housing component and a second housing component, each of which has a closed hollow cross section. The two housing components are joined to one another at a joining region by welding. At the joining region, an inside dimension of the first housing component is larger than an outside dimension of the second housing component in such a way that before welding, a gap is present between the first and the second housing component.
  • As a result, residues that may be present on the surfaces in the joining region of the housing components outgas through the gap as a result of the heat generated during welding, and thus do not cause problems in the weld seam, e.g. due to the formation of pores or the like. The gap becomes closed during welding, so that the weld seam is located between the first and the second housing component.
  • In further fashion, the housing may encompass a compression connection region at which the first and the second housing component are additionally connected by way of a compression connection. The compression connection region may be disposed adjacent to the joining region.
  • The gap between the first and the second housing component before welding may be constituted with a uniform thickness in the longitudinal direction of the housing components, or in tapering, in particular conical, fashion.
  • A hollow cross section of the first and the second housing component may be circular in each case. In other words, the housing components may be embodied in cylindrical fashion. Alternatively, the housing components can also have an oval hollow cross section.
  • Exemplary embodiments of the present invention are described below in detail with reference to the accompanying drawings.
  • BRIEF DESCRIPTION OF THE DRAWINGS
  • FIG. 1 shows a schematic sectioned view of a housing for an injection valve before a welding step, according to a first exemplifying embodiment of the invention.
  • FIG. 2 shows a schematic sectioned view of the housing shown in FIG. 1, after the welding operation.
  • FIG. 3 shows a schematic sectioned view of a housing for an injection valve before a welding step, according to a second exemplifying embodiment of the invention.
  • FIG. 4 shows a schematic sectioned view of the housing shown in FIG. 3 in the welded state.
  • DETAILED DESCRIPTION
  • A method and a housing according to a first exemplifying embodiment of the invention will be described in detail below with reference to FIGS. 1 and 2.
  • As FIG. 1 shows, a housing 1 encompasses a first housing component 2 and a second housing component 3. The two housing components 2, 3 are constituted as hollow cylindrical bodies having a circular cross section. First housing component 2 has a uniform inside diameter I1. Second housing component 3 has an end region 3 a that has an outside diameter A2. End region 3 a thus has a diameter that is somewhat smaller than a remaining diameter A2′ of second housing component 3. Because of the reduced outside diameter of end region 3 a of second housing component 3, a peripheral gap 6 therefore results, as shown in FIG. 1, between first housing component 2 and second housing component 3 when the two housing components 2, 3 are in the assembled state. Gap 6 has a constant width in the circumferential direction. Gap 6 furthermore has a constant length in axial direction X-X of the housing. The length of gap 6 in axial direction X-X corresponds to a joining region 4 between the first and the second housing component 3. At joining region 4, first housing component 2 is connected to second housing component 3 by laser welding. Housing 1 furthermore encompasses a compression connection region 5 that is disposed immediately adjacent to joining region 4. In compression connection region 5, a press fit is constituted between first housing component 2 and second housing component 3.
  • The method according to the present invention for joining housing components 2, 3 to produce housing 1 will be described below. In a first step, the two housing components 2, 3 are manufactured, for example, by deep drawing. An inside diameter I1 of first housing component 2 is selected in such a way that it is larger than an outside diameter A2 of second housing component 3 at end region 3 a of second housing component 3. An outside diameter A2′ of second housing component 3 is also selected in such a way that it can participate in a press fit together with inside diameter I1 of first housing component 2. In a subsequent step, second housing component 3 is inserted into first housing component 2. This produces a compression connection between the two housing components at compression connection region 5. A constant peripheral gap 6, having a uniform gap width in the radial direction, is furthermore produced between the two housing components 2, 3 at joining region 4.
  • If residues 7 are present on the surfaces of first and second housing component 2, 3 in joining region 4, as shown in FIG. 1, said residues are in communication with the external environment via gap 6. Residues can result, for example, from the previous manufacturing step in which, for example, oil or naphtha is used as a lubricant for deep drawing. Compression connection region 5 ensures that relative positioning between first housing component 2 and second housing component 3 is defined. Be it noted that compression connection region 5 can in principle be omitted, and the two housing components 2, 3 can be held for the subsequent welding step using a holding apparatus. Greater technical complexity for the retaining apparatus is, however, necessary for this purpose.
  • In a subsequent step, welding of the two housing components 2, 3 to one another takes place. In FIG. 1, arrow L indicates a laser beam with which the welding operation is performed. Laser beam L first strikes the outer side of first housing component 2. As a result of the heat evolution occurring in this context, residues 7 present on the housing surfaces in gap 6 are converted into a gaseous state. These now gaseous residues can outgas from gap 6 into the environment as indicated by arrow B in FIG. 1. When the actual welding operation between first and second housing component 2, 3 then begins, there are thus no further residues 7 on the surfaces in joining region 4 of housing components 2, 3.
  • A secure welded connection 8 between first and second housing component 2, 3 can thereby be achieved. Housing components 2, 3 are welded along the entire circumference of the housing components, in which context either the laser or the assembled housing components 2, 3 can be rotated. It is also possible to use several lasers simultaneously, which begin the welding operation at different locations on the circumference. FIG. 2 shows the final state of housing 1, in which the two housing components 2, 3 are joined to one another by welding. As shown in FIG. 2, welded connection 8 is located approximately at the center of joining region 4.
  • This results in an enclosed region 6′, which is a former gap region, between the two housing components 2, 3. This region 6′ has no effects, however, on the welded connection between the two housing components 2, 3. Be it noted that the formation of this region 6′ can be prevented if welded connection 8 is provided in a portion of joining region 4 that is located closer to compression connection region 5. It is of course also possible for end region 3 a of second housing component 3, which region is located in joining region 4, to have the shortest possible length in axial direction X-X of the housing. The length of this end region 3 a may be selected in such a way that it corresponds to or is somewhat greater than the extension of welded connection 8 in axial direction X-X. Housing 1 according to the present invention shown in FIG. 2 thus has a double connection, namely welded connection 8 and a compression connection in compression connection region 5.
  • A method and a housing according to a second exemplifying embodiment of the invention will be described in detail below with reference to FIGS. 3 and 4. Identical or functionally identical parts are labeled with the same reference characters as in the first exemplifying embodiment.
  • The second exemplifying embodiment corresponds substantially to the first embodiment; in contrast thereto, gap 6 is embodied differently. As shown in FIG. 3, gap 6 of the second exemplifying embodiment is constituted by a conically tapering end region 3 a of second housing component 3. Gap 6 thus has a wedge shape in section. Gap 6 is once again embodied uniformly along the circumference of second housing component 3, and tapers from the end of end region 3 a located at first housing component 2 to compression connection region 5.
  • FIG. 4 again shows the completed housing with welded connection 8 between first and second housing component 3. Welded connection 8 is once again disposed adjacent to compression connection region 5. As in the first exemplifying embodiment, outgassing of residues 7 can be enabled by the provision of gap 6, as indicated by arrow B. Because gap 6 widens in the outgassing direction, the gaseous residues can be removed particularly reliably. This exemplifying embodiment otherwise corresponds to the previous exemplifying embodiment, so that the reader may be referred to the description given there.

Claims (6)

1-14. (canceled)
15. A housing for an injection valve, comprising:
a first housing component; and
a second housing component joined to the first housing component by welding;
wherein the first housing component has a first inside dimension, the first housing component and the second housing component each being constituted as hollow bodies having a closed hollow cross section, a shape of the hollow cross section of the second component corresponding to a shape of the hollow cross section of the first component,
wherein the second housing component has an outside dimension, the outside dimension of the second housing component being smaller than the inside dimension of the first component,
wherein the second housing component is disposed in the first housing component so that a peripheral gap is constituted between an inner wall of the first housing component and an outer wall of the second housing component, the region having a gap between the two housing components being a joining region, and
wherein the first housing component is welded by laser welding to the second housing component in the joining region of the gap between the first and the second housing components, and
wherein there is a welding connection in the joining region which in a radial direction starting from an outer side of the first housing component runs through the wall of the first housing component as well as all the way through the gap via the outer side having the dimension of the second housing component into the second housing component, the first housing component in the region of the welding connection being drawn in all the way to lying against the outer side of the second housing component.
16. The housing of claim 15, wherein an inside dimension of the first housing component, at the joining region, is larger than an outside dimension of the second housing component so that before the welding.
17. The housing of claim 15, wherein one of the following is satisfied: (i) the gap has a uniform thickness before welding, and (ii) the gap has a tapering shape.
18. The housing of claim 15, wherein the first and the second housing component each have a circular or oval cross section.
19. The housing of claim 15, further comprising:
a compression connection region between the first and the second housing component.
US14/071,880 2006-08-30 2013-11-05 Method for welding components with a closed hollow cross-section in such a way that a peripheral gap is produced between the two overlapping components Abandoned US20140131610A1 (en)

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DE102006040650A DE102006040650A1 (en) 2006-08-30 2006-08-30 Method for joining components with closed hollow cross section
DE102006040650.8 2006-08-30
PCT/EP2007/057788 WO2008025623A1 (en) 2006-08-30 2007-07-27 Method for welding components with a closed hollow cross-section in such a way that a peripheral gap is produced between the two overlapping components
US30178511A 2011-05-10 2011-05-10
US14/071,880 US20140131610A1 (en) 2006-08-30 2013-11-05 Method for welding components with a closed hollow cross-section in such a way that a peripheral gap is produced between the two overlapping components

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US12/301,785 Division US8607457B2 (en) 2006-08-30 2007-07-27 Method for welding components with a closed hollow cross-section in such a way that a peripheral gap is produced between the two overlapping components
PCT/EP2007/057788 Division WO2008025623A1 (en) 2006-08-30 2007-07-27 Method for welding components with a closed hollow cross-section in such a way that a peripheral gap is produced between the two overlapping components

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Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010005873B4 (en) * 2010-01-27 2012-06-06 Magna Powertrain Ag & Co. Kg Method for connecting a shaft and a hub and arrangement of shaft and hub
JP5381766B2 (en) * 2010-02-09 2014-01-08 株式会社デンソー Welding method
JP5509901B2 (en) * 2010-02-12 2014-06-04 株式会社デンソー Fuel injection valve
DE102010031365A1 (en) * 2010-07-15 2012-01-19 Robert Bosch Gmbh Component for an injection valve with two connected components
KR101272050B1 (en) * 2011-11-11 2013-06-07 주식회사 성우하이텍 Method of laser welding
JP5921240B2 (en) * 2012-02-10 2016-05-24 日立オートモティブシステムズ株式会社 Fuel injection valve
JPWO2013157269A1 (en) * 2012-04-20 2015-12-21 日本特殊陶業株式会社 Glow plug with pressure sensor
JP5947122B2 (en) * 2012-06-27 2016-07-06 日本特殊陶業株式会社 Glow plug
CN105264214A (en) * 2013-06-06 2016-01-20 日立汽车系统株式会社 Electromagnetic fuel injection valve
US10794523B2 (en) 2015-12-14 2020-10-06 Wilmarc Holdings, Llc Laser induced sealing of concentrically layered materials
DE102015226469A1 (en) * 2015-12-22 2017-06-22 Robert Bosch Gmbh Component of a high-pressure system, in particular a high-pressure fuel injection system
JP6709638B2 (en) * 2016-03-10 2020-06-17 日立造船株式会社 Welding method of steel pipe and joint in steel pipe structure
WO2017168975A1 (en) * 2016-03-28 2017-10-05 日立オートモティブシステムズ株式会社 Flow rate control device
CN110325737B (en) * 2017-02-23 2021-05-25 三菱电机株式会社 Compressor
DE102017105900A1 (en) * 2017-03-20 2018-09-20 Kirchhoff Automotive Deutschland Gmbh Method for end-side laser welding
EP3466601B1 (en) * 2017-10-04 2024-06-12 Saint-Gobain Ecophon AB Method for manufacturing of a profile member
CN111971472B (en) * 2018-04-20 2022-05-24 日立安斯泰莫株式会社 Component of flow rate control device and fuel injection valve
SG11202110190UA (en) * 2019-03-29 2021-10-28 Gyrus Acmi Inc D/B/A Olympus Surgical Technologies America Forceps motion transfer assembly
CN115214149A (en) * 2021-04-19 2022-10-21 财团法人金属工业研究发展中心 Method for jointing fiber thermoplastic composite pipe and aluminum alloy pipe
DE102022203695A1 (en) 2022-04-12 2023-10-12 Mahle International Gmbh Method for connecting a first component to a second component using laser welding and shaft arrangement

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20010015013A1 (en) * 2000-02-18 2001-08-23 Takayuki Kato Method of producing swash plate type compressor piston
US7617605B2 (en) * 2005-06-16 2009-11-17 Continental Automotive Systems Us, Inc. Component geometry and method for blowout resistant welds
US7930825B2 (en) * 2005-06-16 2011-04-26 Continental Automotive Systems Us, Inc. Blowout resistant weld method for laser welds for press-fit parts
US20110192824A1 (en) * 2007-08-17 2011-08-11 Danfoss A/S Laser welding of highly reflective materials

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE511461C (en) 1926-09-09 1930-10-30 Johann Steinnes Process for the overlap welding of pipes
US2988811A (en) * 1957-03-08 1961-06-20 Huet Andre Method of making tube and wall connections
US4257155A (en) * 1976-07-26 1981-03-24 Hunter John J Method of making pipe coupling joint
IT1182277B (en) * 1984-09-20 1987-10-05 Prima Progetti Spa METHOD FOR LASER WELDING OF METAL SHEETS PROTECTED WITH MATERIALS AT LOW VAPORIZATION TEMPERATURE
JPH01258886A (en) 1988-04-08 1989-10-16 Hitachi Ltd Laser welding method
JPH07110429B2 (en) 1989-04-10 1995-11-29 日産自動車株式会社 Welding method for steel automobile road wheels
JP2839394B2 (en) 1991-08-26 1998-12-16 日鐵溶接工業株式会社 Metal tube joining method
US5454480A (en) * 1993-10-21 1995-10-03 Morris Holmes & Co. Flangeless fuel tank
JPH0996264A (en) 1995-10-02 1997-04-08 Nippon Injector Kk Solenoid fuel injection valve and manufacture thereof
CN2379679Y (en) * 1999-06-10 2000-05-24 赵培成 Overlapping and winding type steel plastic composite tube
DE19930931A1 (en) * 1999-07-06 2001-01-11 Sgl Technik Gmbh Layered composite with welded metal insert
US6421913B1 (en) * 2000-01-19 2002-07-23 Delphi Technologies, Inc. Retention feature for assembling a pole pieces into a tube of a fuel injector
US6676044B2 (en) 2000-04-07 2004-01-13 Siemens Automotive Corporation Modular fuel injector and method of assembling the modular fuel injector
US6403916B1 (en) * 2000-05-12 2002-06-11 Isostar International, Inc. System and automated method for producing welded end closures in thin-walled metal tubes
ITTO20010185A1 (en) * 2001-03-02 2002-09-02 Comau Systems Spa PROCEDURE AND SYSTEM FOR LASER WELDING OF TWO OR MORE METAL SHEETS BETWEEN THEIR SUPPOSITORS, AND LOCKING DEVICE FOR THE SHEETS
ITBO20010375A1 (en) * 2001-06-13 2002-12-13 Valter Lolli METHOD FOR THE PRODUCTION OF HEAD ELEMENTS FOR THERMAL RADIATORS, AND HEAD ELEMENT MADE WITH SUCH METHOD
CN2494465Y (en) * 2001-06-29 2002-06-05 广州市自来水制管厂 Spheric spigot and socket welded steel pipe
JP4151355B2 (en) 2002-08-30 2008-09-17 住友電気工業株式会社 Light emitting module
JP4397631B2 (en) * 2003-06-27 2010-01-13 株式会社オーハシテクニカ Press-fit joint structure and joint parts
JP2005319482A (en) 2004-05-10 2005-11-17 Nisshin Steel Co Ltd Manufacturing method for metallic muffler shell

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20010015013A1 (en) * 2000-02-18 2001-08-23 Takayuki Kato Method of producing swash plate type compressor piston
US7617605B2 (en) * 2005-06-16 2009-11-17 Continental Automotive Systems Us, Inc. Component geometry and method for blowout resistant welds
US7930825B2 (en) * 2005-06-16 2011-04-26 Continental Automotive Systems Us, Inc. Blowout resistant weld method for laser welds for press-fit parts
US20110192824A1 (en) * 2007-08-17 2011-08-11 Danfoss A/S Laser welding of highly reflective materials

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US20110204276A1 (en) 2011-08-25
DE102006040650A1 (en) 2008-03-13
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JP5156746B2 (en) 2013-03-06
JP5575186B2 (en) 2014-08-20
EP2059366A1 (en) 2009-05-20
JP2010501811A (en) 2010-01-21
JP2012183591A (en) 2012-09-27
CN101578156A (en) 2009-11-11
WO2008025623A1 (en) 2008-03-06
EP2059366B1 (en) 2012-04-11

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