CN104668690B - The apparatus and method of ultrasonic vibration welding wire auxiliary solder without soldering acid - Google Patents
The apparatus and method of ultrasonic vibration welding wire auxiliary solder without soldering acid Download PDFInfo
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- CN104668690B CN104668690B CN201510068031.5A CN201510068031A CN104668690B CN 104668690 B CN104668690 B CN 104668690B CN 201510068031 A CN201510068031 A CN 201510068031A CN 104668690 B CN104668690 B CN 104668690B
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- 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
- B23K3/00—Tools, devices, or special appurtenances for soldering, e.g. brazing, or unsoldering, not specially adapted for particular methods
- B23K3/06—Solder feeding devices; Solder melting pans
- B23K3/0607—Solder feeding devices
- B23K3/063—Solder feeding devices for wire feeding
-
- 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
- B23K3/00—Tools, devices, or special appurtenances for soldering, e.g. brazing, or unsoldering, not specially adapted for particular methods
- B23K3/08—Auxiliary devices therefor
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Molten Solder (AREA)
Abstract
The invention discloses the apparatus and method of a kind of ultrasonic vibration welding wire auxiliary solder without soldering acid, belong to soldering (molten soldering) field in welding.I.e. in welding heat source (laser or electric arc) soldering or molten soldering, by the process of silk filling, ultrasonic vibration is imported in fusing metal, the cavitation effect utilizing ultrasonic vibration removes the oxide-film on solid-state mother metal surface, make liquid solder at solid-state mother metal surface effective wetting, improving the spreading ability of liquid solder, it is achieved solder without soldering acid or molten soldering, the most ultrasonic cavitation can be with crystal grain thinning, improve appearance of weld, improve welding quality.This device structure is simple, and application is flexibly, it is easy to accomplish.
Description
Technical field
The present invention relates to soldering (molten soldering) field in welding, be the most just made by ultrasonic
The welding wire of vibration, by welding wire transmission ultrasonic vibration to melting in metal, and then it is (molten to improve soldering
Soldering) during liquid solder at the method and apparatus of solid-state mother metal moistened surface spreadability.
Background technology
In actual industrial production, the most polymetallic laser (electric arc) soldering (molten soldering) mistake
Journey needs to ensure the wetting and spreading of liquid solder by brazing flux or coated metal.But brazing flux
Affect appearance of weld, and the most easily cause pore and the defect such as be mingled with；Use coated metal
Time, welding point easily produces in the defects such as pore, and technique complex, is even difficult to real
Existing.
Use ultrasonic vibration to realize liquid metal to have obtained without brazing flux wetting in solid metallic surface
To common recognition both domestic and external.But, how ultrasonic vibration being applied to welding region is a difficult problem.
China Patent Publication No. is CN 101239415A, innovation and creation entitled " a kind of ultrasonic vibration and weldering
The welding method that silk feeding system is compound ", during disclosing a kind of melting, ultrasonic vibration is passed through
Welding wire is delivered in molten bath, and by ultrasonic cavitation effect refinement joint microstructure, uniform weld seam becomes
Point, improve joint mechanical property.Its weak point is that the method is only limitted to melting process, weldering
Silk cannot ensure the close contact of welding wire and wire feeding mouth during being sent into, thus affects ultrasonic biography
Pass.China Patent Publication No. is CN 101195183A, the entitled " ultrasonic assistant of innovation and creation
The method that laser pricker (melting) welds ", disclose a kind of laser brazing clad metal or laser pricker (melting)
Ultrasonic vibration is delivered to by ultrasonic transformer the welded seam area that will solidify by weldering dissimilar metal, borrows
Helping ultrasonic vibration to promote the flowing of molten solder thus improve appearance of weld, its weak point is dress
Put more complicated, and for the soldering (molten soldering) of moving heat sources it is difficult to ensure that liquid solder
The uniformity of wetting.Through research for a long time, it has been found that (molten in laser (electric arc) soldering
Soldering) in, welding process when welding wire end is in close contact with liquid metal is the most stable.Cause
This present invention proposes, and puts on welding wire by ultrasonic, utilizes welding wire and liquid metal to be in close contact this
One characteristic of sample imports to ultrasonic in liquid metal, thus realizes without brazing flux laser (electric arc)
Soldering (molten soldering).
Summary of the invention
Melt solder during the invention aims to solve solder bonding metal (molten soldering) to exist
The problems such as metal surface wetting and spreading and joint crystallized ability difference, it is provided that a kind of ultrasonic vibration
The method and apparatus of welding wire auxiliary solder without soldering acid (molten soldering).
In order to solve above-mentioned technical problem, the present invention is achieved through the following technical solutions:
The method and apparatus of ultrasonic vibration welding wire auxiliary solder without soldering acid (molten soldering), utilizes welding
Thermal source (laser or electric arc) soldering or the wire feed process of molten soldering, import fusing by ultrasonic vibration
In metal, utilize the cavitation effect of ultrasonic vibration to remove the oxide-film on solid-state mother metal surface, make liquid
State solder, at solid-state mother metal surface effective wetting, improves the spreading ability of liquid solder, it is achieved nothing
Brazing flux soldering or molten soldering, the most ultrasonic cavitation can improve weld seam with crystal grain thinning
Shape, improves welding quality.This device structure is simple, and application is flexibly, it is easy to accomplish.
The device of ultrasonic vibration welding wire auxiliary solder without soldering acid (molten soldering) by welding heat source, workpiece,
Wire feed system, ultrasonic system and pretensioner systems composition；Welding heat source constitutes welding system with workpiece；
Wire feed system enters into welding system welding wire by inside wire feeding mouth；Ultrasonic system includes: will
The signal of telecommunication is converted into the ultrasonic transducer of mechanical oscillation, amplifies the ultrasonic amplitude of fluctuation of amplitude of ultrasonic vibration
The wire feeding mouth composition of bar and ultrasonic transformer one；Ultrasonic transducer connect ultrasonic transformer, ultrasonic transformer with
Wire feeding mouth is connected；Pretensioner systems includes: screw in the bolt bottom ultrasonic transformer, screwed hole, pretension
U-shaped slide block, chute that spring contacts with welding wire form；U-shaped slide block is put in chute, sliding
Block inwall contacts with welding wire, and preloading spring connects U-shaped slide block, and bolt screws in screwed hole with pre-
Tight spring connects.For ensureing the weldering being delivered to be sent into of ultrasonic vibration continuous and effective in welding process
In Si, arranging pretensioner systems bottom ultrasonic transformer, this system is by regulation bolt precession screwed hole
The degree of depth, changes the compression stress of preloading spring, thus ensures welding wire and ultrasonic transformer and U-shaped slide block
Inwall is in close contact, and makes the most lasting being delivered in welding wire of ultrasonic vibration.
The technological parameter of the method and apparatus of ultrasonic vibration welding wire auxiliary solder without soldering acid is set to:
Speed of welding 0.5-5m/min, shield gas flow rate is 5-20L/min, gage of wire Φ
0.8-3.2mm, wire feed rate 1.5-10m/min, ultrasound working frequency is 20-100KHz, super
Sonic transducer amplitude is 1-10 μm, and ultrasonic amplitude transformer amplitude is 20-200 μm, wire feeding mouth and work
Part angle 15-45 °.
The method and apparatus of ultrasonic vibration welding wire auxiliary solder without soldering acid (molten soldering), except having
Outside welding advantage when laser or arc brazing (molten soldering), liquid solder is at solid-state gold simultaneously
Belonging to mother metal moistened surface spreadability good, control molten drop steadily transition in weld seam, refinement weld seam is brilliant
The advantages such as grain.The method can realize high-quality welding under common welding condition, can realize coating
Solder bonding metal and the bigger dissimilar metal of the fusing point difference such as aluminium and steel, titanium and aluminium melt soldering.
Accompanying drawing explanation
Fig. 1 is the device schematic diagram of ultrasonic vibration welding wire auxiliary solder without soldering acid.In figure, 1, weldering
Connect thermal source (laser or electric arc)；2, workpiece；3, bolt；4, screwed hole；5, pretension bullet
Spring；6, chute；7, U-shaped slide block；8, wire feed system；9, welding wire；10, wire feeding mouth；
11, ultrasonic transducer；12, ultrasonic transformer.
Detailed description of the invention
Below in conjunction with schematic diagram and detailed description of the invention, the present invention is described in further detail.
Embodiment 1: combine the method for the auxiliary solder without soldering acid of ultrasonic vibration welding wire described in Fig. 1 with
Device, building device, make welding heat source 1 and workpiece 2 constitute welding system；Wire feed system
8 welding wires 9 of uniting enter into welding system by wire feeding mouth 10 is internal；Ultrasonic transducer 11 is even
Connecing ultrasonic transformer 12, ultrasonic transformer 12 is connected with wire feeding mouth 10, and U-shaped slide block 7 puts into chute 6
In, slide block inwall contacts with welding wire, and pretension bullet 5 connects U-shaped slide block 7, and bolt 3 screws in spiral shell
Pit 4 is connected with preloading spring 5.
The method technological parameter of ultrasonic vibration welding wire auxiliary solder without soldering acid is set to: speed of welding
0.5-5m/min, shield gas flow rate is 5-20L/min, and gage of wire Φ 0.8-3.2mm send
Silk speed 1.5-10m/min, ultrasound working frequency is 20-100KHz, ultrasonic transducer amplitude
For 1-10 μm, ultrasonic amplitude transformer amplitude is 20-200 μm, wire feeding mouth and workpiece angle 15-45 °.
Embodiment 2: combine Fig. 1, described ultrasonic vibration welding wire assists the device of solder without soldering acid,
Being suitable for I type, Y type, V-type and x-weld form, joint can be to dock, overlap, roll up
The structures such as limit.In welding process, welding wire and liquid metal remain stable close contact,
Ensure that ultrasonic vibration is delivered to melt in solder continuously.
Claims (3)
1. the device of a ultrasonic vibration welding wire auxiliary solder without soldering acid, it is characterised in that this dress
Put by welding heat source (1), workpiece (2), wire feed system (8), ultrasonic system and pretensioner systems
Composition；Welding heat source (1) constitutes welding system with workpiece (2)；Wire feed system (8)
Welding wire (9) enters into welding system by wire feeding mouth (10) is internal；Ultrasonic system is by by electricity
Signal is converted into the ultrasonic transducer (11) of mechanical oscillation, amplifies the ultrasonic of amplitude of ultrasonic vibration
Wire feeding mouth (10) composition of ultrasonic transformer (12) and ultrasonic amplitude transformer one；Ultrasonic transducer
(11) connecting ultrasonic transformer (12), ultrasonic transformer (12) is connected with wire feeding mouth (10)；Pretension
System is by screwing in the bolt (3) of ultrasonic amplitude transformer (12) bottom, screwed hole (4), pretension bullet
U-shaped slide block (7), chute (6) that spring (5) contacts with welding wire (9) form；U-shaped is sliding
Block (7) is put in chute (6), and U-shaped slide block inwall contacts with welding wire (9), preloading spring
(5) U-shaped slide block (7) is connected, with preloading spring in bolt (3) screw-in screwed hole (4)
(5) connect；
In the welding wire (9) being delivered to be sent into for guarantee ultrasonic vibration continuous and effective, ultrasonic transformer
(12) bottom arranges pretensioner systems, and pretensioner systems is by regulation bolt (3) precession screwed hole
(4) the degree of depth, change preloading spring (5) compression stress, thus ensure welding wire (9) with
The inwall of ultrasonic transformer (12) and U-shaped slide block (7) is in close contact, and makes ultrasonic vibration hold smoothly
Continuous is delivered in welding wire (9).
The device of ultrasonic vibration welding wire the most according to claim 1 auxiliary solder without soldering acid,
It is characterized in that: this device is suitable for I type, Y type, V-type and x-weld form, joint is
Docking, overlap joint or bead structure；In welding process, welding wire and liquid metal remain stable
Close contact, thus ensure that ultrasonic vibration is delivered to melt in solder continuously.
3. the ultrasonic vibration welding wire of the described device using claim 1 assists without brazing flux
Method for welding, it is characterised in that technological parameter is set to: speed of welding 0.5-5m/min, protects
Protecting gas flow is 5-20L/min, gage of wire φ 0.8-3.2mm, wire feed rate
1.5-10m/min, ultrasound working frequency is 20-100KHz, and ultrasonic transducer amplitude is
1-10 μm, ultrasonic amplitude transformer amplitude is 20-200 μm, wire feeding mouth and workpiece angle 15-45 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510068031.5A CN104668690B (en) | 2015-02-09 | 2015-02-09 | The apparatus and method of ultrasonic vibration welding wire auxiliary solder without soldering acid |
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|---|---|---|---|
| CN201510068031.5A CN104668690B (en) | 2015-02-09 | 2015-02-09 | The apparatus and method of ultrasonic vibration welding wire auxiliary solder without soldering acid |
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| CN104668690A CN104668690A (en) | 2015-06-03 |
| CN104668690B true CN104668690B (en) | 2016-09-07 |
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| CN1140162C (en) * | 2000-09-22 | 2004-02-25 | 哈尔滨工业大学 | Ultrasonic laser flux-free soft soldering method |
| US6892927B2 (en) * | 2003-04-24 | 2005-05-17 | Intel Corporation | Method and apparatus for bonding a wire to a bond pad on a device |
| CN101185986A (en) * | 2007-11-23 | 2008-05-28 | 哈尔滨工业大学 | Ultrasound wave and melt pole electrical arc compound welding method |
| CN100556602C (en) * | 2007-12-24 | 2009-11-04 | 哈尔滨工业大学 | The method of soldering of ultrasonic wave auxiliary laser or laser braze-welding |
| CN101239415A (en) * | 2008-03-12 | 2008-08-13 | 哈尔滨工业大学 | Ultrasonic vibration and welding stick feeding system compound welding method and device thereof |
| CN203108826U (en) * | 2012-11-19 | 2013-08-07 | 成都泛华航空仪表电器有限公司 | Hand-held type safety chip remover |
| CN103143848B (en) * | 2013-03-26 | 2015-05-20 | 哈尔滨工业大学（威海） | Vertical welding method for applying ultrasonic-arc hybrid |
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