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 PDFInfo
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- 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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- United States
- Prior art keywords
- housing component
- housing
- component
- gap
- welding
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/10—Welded housings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K33/00—Specially-profiled edge portions of workpieces for making soldering or welding connections; Filling the seams formed thereby
- B23K33/004—Filling of continuous seams
- B23K33/006—Filling of continuous seams for cylindrical workpieces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/20—Bonding
- B23K26/21—Bonding by welding
- B23K26/24—Seam welding
- B23K26/244—Overlap seam welding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/20—Bonding
- B23K26/21—Bonding by welding
- B23K26/24—Seam welding
- B23K26/28—Seam welding of curved planar seams
- B23K26/282—Seam welding of curved planar seams of tube sections
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
- F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
- F02M61/168—Assembling; Disassembling; Manufacturing; Adjusting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/006—Vehicles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/04—Tubular or hollow articles
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
- F02M2200/80—Fuel injection apparatus manufacture, repair or assembly
- F02M2200/8084—Fuel injection apparatus manufacture, repair or assembly involving welding or soldering
-
- Y—GENERAL 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49405—Valve or choke making
- Y10T29/49412—Valve or choke making with assembly, disassembly or composite article making
- Y10T29/49416—Valve or choke making with assembly, disassembly or composite article making with material shaping or cutting
- Y10T29/49421—Valve or choke making with assembly, disassembly or composite article making with material shaping or cutting including metallurgical bonding
-
- Y—GENERAL 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49826—Assembling or joining
- Y10T29/49908—Joining by deforming
- Y10T29/49925—Inward deformation of aperture or hollow body wall
-
- Y—GENERAL 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49826—Assembling or joining
- Y10T29/49908—Joining by deforming
- Y10T29/49925—Inward deformation of aperture or hollow body wall
- Y10T29/49927—Hollow 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
- 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.
- 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.
- 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.
- 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.
-
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 inFIG. 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 inFIG. 3 in the welded state. - 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, ahousing 1 encompasses afirst housing component 2 and asecond housing component 3. The twohousing components First housing component 2 has a uniform inside diameter I1.Second housing component 3 has anend 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′ ofsecond housing component 3. Because of the reduced outside diameter ofend region 3 a ofsecond housing component 3, aperipheral gap 6 therefore results, as shown inFIG. 1 , betweenfirst housing component 2 andsecond housing component 3 when the twohousing components 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 ofgap 6 in axial direction X-X corresponds to a joiningregion 4 between the first and thesecond housing component 3. At joiningregion 4,first housing component 2 is connected tosecond housing component 3 by laser welding.Housing 1 furthermore encompasses acompression connection region 5 that is disposed immediately adjacent to joiningregion 4. Incompression connection region 5, a press fit is constituted betweenfirst housing component 2 andsecond housing component 3. - The method according to the present invention for joining
housing components housing 1 will be described below. In a first step, the twohousing components first housing component 2 is selected in such a way that it is larger than an outside diameter A2 ofsecond housing component 3 atend region 3 a ofsecond housing component 3. An outside diameter A2′ ofsecond housing component 3 is also selected in such a way that it can participate in a press fit together with inside diameter I1 offirst housing component 2. In a subsequent step,second housing component 3 is inserted intofirst housing component 2. This produces a compression connection between the two housing components atcompression connection region 5. A constantperipheral gap 6, having a uniform gap width in the radial direction, is furthermore produced between the twohousing components region 4. - If residues 7 are present on the surfaces of first and
second housing component region 4, as shown in FIG. 1, said residues are in communication with the external environment viagap 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 betweenfirst housing component 2 andsecond housing component 3 is defined. Be it noted thatcompression connection region 5 can in principle be omitted, and the twohousing components - In a subsequent step, welding of the two
housing components FIG. 1 , arrow L indicates a laser beam with which the welding operation is performed. Laser beam L first strikes the outer side offirst housing component 2. As a result of the heat evolution occurring in this context, residues 7 present on the housing surfaces ingap 6 are converted into a gaseous state. These now gaseous residues can outgas fromgap 6 into the environment as indicated by arrow B inFIG. 1 . When the actual welding operation between first andsecond housing component region 4 ofhousing components - A secure welded connection 8 between first and
second housing component Housing components housing components FIG. 2 shows the final state ofhousing 1, in which the twohousing components FIG. 2 , welded connection 8 is located approximately at the center of joiningregion 4. - This results in an
enclosed region 6′, which is a former gap region, between the twohousing components region 6′ has no effects, however, on the welded connection between the twohousing components region 6′ can be prevented if welded connection 8 is provided in a portion of joiningregion 4 that is located closer tocompression connection region 5. It is of course also possible forend region 3 a ofsecond housing component 3, which region is located in joiningregion 4, to have the shortest possible length in axial direction X-X of the housing. The length of thisend 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 inFIG. 2 thus has a double connection, namely welded connection 8 and a compression connection incompression 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 inFIG. 3 ,gap 6 of the second exemplifying embodiment is constituted by a conically taperingend region 3 a ofsecond housing component 3.Gap 6 thus has a wedge shape in section.Gap 6 is once again embodied uniformly along the circumference ofsecond housing component 3, and tapers from the end ofend region 3 a located atfirst housing component 2 tocompression connection region 5. -
FIG. 4 again shows the completed housing with welded connection 8 between first andsecond housing component 3. Welded connection 8 is once again disposed adjacent tocompression connection region 5. As in the first exemplifying embodiment, outgassing of residues 7 can be enabled by the provision ofgap 6, as indicated by arrow B. Becausegap 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.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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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 |
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
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 |
Related Parent Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
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 |
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 |
Publications (1)
Publication Number | Publication Date |
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US20140131610A1 true US20140131610A1 (en) | 2014-05-15 |
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Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
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US12/301,785 Expired - Fee Related 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 |
US14/071,880 Abandoned 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 |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
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US12/301,785 Expired - Fee Related 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 |
Country Status (6)
Country | Link |
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US (2) | US8607457B2 (en) |
EP (1) | EP2059366B1 (en) |
JP (2) | JP5156746B2 (en) |
CN (1) | CN101578156B (en) |
DE (1) | DE102006040650A1 (en) |
WO (1) | WO2008025623A1 (en) |
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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 |
EP2840315B1 (en) * | 2012-04-20 | 2019-10-09 | NGK Sparkplug Co., Ltd. | Glow plug with pressure sensor and method of manufacturing |
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 |
JP6889330B2 (en) * | 2018-04-20 | 2021-06-18 | 日立Astemo株式会社 | Flow control device parts 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 |
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- 2007-07-27 CN CN2007800319458A patent/CN101578156B/en not_active Expired - Fee Related
- 2007-07-27 WO PCT/EP2007/057788 patent/WO2008025623A1/en active Application Filing
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- 2012-06-22 JP JP2012141399A patent/JP5575186B2/en not_active Expired - Fee Related
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Also Published As
Publication number | Publication date |
---|---|
JP5156746B2 (en) | 2013-03-06 |
US8607457B2 (en) | 2013-12-17 |
EP2059366B1 (en) | 2012-04-11 |
CN101578156A (en) | 2009-11-11 |
WO2008025623A1 (en) | 2008-03-06 |
JP5575186B2 (en) | 2014-08-20 |
CN101578156B (en) | 2012-10-24 |
DE102006040650A1 (en) | 2008-03-13 |
US20110204276A1 (en) | 2011-08-25 |
EP2059366A1 (en) | 2009-05-20 |
JP2012183591A (en) | 2012-09-27 |
JP2010501811A (en) | 2010-01-21 |
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