CN104668690A - Device and method for assisting fluxless brazing by ultrasonic vibrating welding wire - Google Patents
Device and method for assisting fluxless brazing by ultrasonic vibrating welding wire Download PDFInfo
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- CN104668690A CN104668690A CN201510068031.5A CN201510068031A CN104668690A CN 104668690 A CN104668690 A CN 104668690A CN 201510068031 A CN201510068031 A CN 201510068031A CN 104668690 A CN104668690 A CN 104668690A
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- ultrasonic
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- ultrasonic vibration
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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 a device and a method for assisting fluxless brazing by an ultrasonic vibrating welding wire, and belongs to the field of brazing (melt-brazing) in welding. During brazing or melt-brazing of a welding heat source (laser or electric arc), ultrasonic vibration is introduced into melted metal in a wire filling process; an oxidized film on the surface of a solid base material is removed by a cavitation effect of the ultrasonic vibration, so that a liquid brazing filler metal is effectively wetted on the surface of the solid base material; therefore the spreading capacity of the liquid brazing filler metal is improved, and fluxless brazing or melt-brazing is realized; meanwhile, crystal particles can be fined under the ultrasonic cavitation effect, the formation of a welding line is improved, and the welding quality is enhanced. The equipment is simple in structure, flexibly applied and easy to implement.
Description
Technical field
The present invention relates to soldering (molten soldering) field in welding, be exactly the welding wire by ultrasonic vibration specifically, transmit ultrasonic vibration in deposite metal by welding wire, and then to improve in soldering (molten soldering) process liquid solder at the method and apparatus of solid-state mother metal moistened surface spreadability.
Background technology
In actual industrial production, very polymetallic laser (electric arc) soldering (molten soldering) process need ensures the wetting and spreading of liquid solder by brazing flux or coated metal.But brazing flux affects appearance of weld, and extremely easily cause pore and the defect such as to be mingled with; When adopting coated metal, welding point easily produces the defects such as pore, and comparatively complicated in technique, is even difficult to realize.
Adopt ultrasonic vibration to realize liquid metal and obtain common recognition both domestic and external in solid metallic surface without brazing flux is wetting.But how ultrasonic vibration being applied to welding region is a difficult problem.China Patent Publication No. is CN 101239415A, innovation and creation are called " welding method of a kind of ultrasonic vibration and welding wire feeding system compound ", disclosing ultrasonic vibration in a kind of melting process is delivered in molten bath by welding wire, by ultrasonic cavitation effect refinement joint microstructure, even composition of weld line, improves joint mechanical property.Its weak point is that the method is only limitted to melting process, and welding wire sends the close contact that cannot ensure welding wire and wire feeding mouth in process to, thus affects ultrasonic transmission.China Patent Publication No. is CN 101195183A, innovation and creation are called " method that ultrasonic assistant laser pricker (melting) welds ", disclose in a kind of laser braze welding coated metal or laser pricker (melting) weldering dissimilar metal and ultrasonic vibration is delivered to by ultrasonic transformer the welded seam area being about to solidify, promote the flowing of molten solder by ultrasonic vibration thus improve appearance of weld, its weak point is device more complicated, and is difficult to the wetting uniformity of guarantee liquid solder for the soldering (molten soldering) of moving heat sources.Through research for a long time, it is found that welding process when welding wire end and liquid metal close contact is the most stable in laser (electric arc) soldering (molten soldering).Therefore the present invention proposes, and puts on welding wire, utilize welding wire and the such characteristic of liquid metal close contact to import to ultrasonic in liquid metal by ultrasonic, thus realizes without brazing flux laser (electric arc) soldering (molten soldering).
Summary of the invention
The object of the invention is to melt solder in problems such as metal surface wetting and spreading and joint crystallized ability differences to solve in solder bonding metal (molten soldering) process, providing the method and apparatus that a kind of ultrasonic vibration welding wire assists solder without soldering acid (molten soldering).
In order to solve the problems of the technologies described above, the present invention is achieved through the following technical solutions:
Ultrasonic vibration welding wire assists the method and apparatus of solder without soldering acid (molten soldering), utilize the wire feed process of welding heat source (laser or electric arc) soldering or molten soldering, ultrasonic vibration is imported in deposite metal, the cavitation effect of ultrasonic vibration is utilized to remove the oxide-film on solid-state mother metal surface, make liquid solder at solid-state mother metal surface effective wetting, improve the spreading ability of liquid solder, realize solder without soldering acid or molten soldering, simultaneously ultrasonic cavitation can crystal grain thinning, improve appearance of weld, improve welding quality.This device structure is simple, applying flexible, is easy to realize.
Ultrasonic vibration welding wire assists the device of solder without soldering acid (molten soldering) to be made up of welding heat source, workpiece, wire feed system, ultrasonic system and pretensioner systems; Welding heat source and workpiece form welding system; Wire feed system enters into welding system welding wire by wire feeding mouth inside; Ultrasonic system comprises: by transform electrical signals be the ultrasonic transducer of mechanical oscillation, amplify amplitude of ultrasonic vibration ultrasonic amplitude transformer, with ultrasonic transformer one wire feeding mouth form; Ultrasonic transducer connects ultrasonic transformer, and ultrasonic transformer is connected with wire feeding mouth; Pretensioner systems comprises: the bolt bottom screw-in ultrasonic transformer, screwed hole, preloading spring, the U-shaped slide block contacted with welding wire, chute form; U-shaped slide block puts into chute, and slide block inwall contacts with welding wire, and preloading spring connects U-shaped slide block, and bolt screws in screwed hole and is connected with preloading spring.Be delivered in the welding wire sent to for what ensure ultrasonic vibration continuous and effective in welding process, bottom ultrasonic transformer, pretensioner systems is set, this system is by the degree of depth of adjusting bolt precession screwed hole, change the compression stress of preloading spring, thus ensure the inwall close contact of welding wire and ultrasonic transformer and U-shaped slide block, what ultrasonic vibration was continued smoothly is delivered in welding wire.
Ultrasonic vibration welding wire assists the technological parameter of the method and apparatus of solder without soldering acid to be 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; ultrasonic transducer amplitude is 1-10 μm, and ultrasonic amplitude transformer amplitude is 20-200 μm, wire feeding mouth and workpiece angle 15-45 °.
Ultrasonic vibration welding wire assists the method and apparatus of solder without soldering acid (molten soldering), except welding advantage when there is laser or arc brazing (molten soldering), liquid solder is good in solid metallic mother metal moistened surface spreadability simultaneously, control molten drop steadily to transition in weld seam, the advantages such as refinement weld grain.The method is high-quality welding under can realizing common welding condition, can realize coated metal soldering and the larger dissimilar metal of the fusing point difference such as aluminium and steel, titanium and aluminium melts soldering.
Accompanying drawing explanation
Fig. 1 is the device schematic diagram that ultrasonic vibration welding wire assists solder without soldering acid.In figure, 1, welding heat source (laser or electric arc); 2, workpiece; 3, bolt; 4, screwed hole; 5, preloading 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: described in composition graphs 1, ultrasonic vibration welding wire assists the method and apparatus of solder without soldering acid, building device, makes welding heat source 1 and workpiece 2 form welding system; Wire feed system 8 enters into welding system welding wire 9 by wire feeding mouth 10 inside; Ultrasonic transducer 11 connects ultrasonic transformer 12, and ultrasonic transformer 12 is connected with wire feeding mouth 10, and U-shaped slide block 7 puts into chute 6, and slide block inwall contacts with welding wire, and pretension bullet 5 connects U-shaped slide block 7, and bolt 3 screws in screwed hole 4 and is connected with preloading spring 5.
Ultrasonic vibration welding wire assists the method technological parameter of solder without soldering acid to be 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; ultrasonic transducer amplitude is 1-10 μm, and ultrasonic amplitude transformer amplitude is 20-200 μm, wire feeding mouth and workpiece angle 15-45 °.
Embodiment 2: composition graphs 1, described ultrasonic vibration welding wire assists the device of solder without soldering acid, is suitable for I type, Y type, V-type and x-weld form, and joint can be the structure such as docking, overlap joint, crimping.In welding process, welding wire and liquid metal remain stable close contact, ensure that ultrasonic vibration is delivered in fusing solder continuously.
Claims (4)
1. ultrasonic vibration welding wire assists a device for solder without soldering acid, it is characterized in that this device is made up of welding heat source (1), workpiece (2), wire feed system (8), ultrasonic system and pretensioner systems; Welding heat source (1) and workpiece (2) form welding system; Wire feed system (8) enters into welding system welding wire (9) by wire feeding mouth (10) inside; Ultrasonic system comprises: by transform electrical signals be the ultrasonic transducer (11) of mechanical oscillation, amplify amplitude of ultrasonic vibration ultrasonic amplitude transformer (12), with ultrasonic amplitude transformer one wire feeding mouth (10) form; Ultrasonic transducer (11) connects ultrasonic transformer (12), and ultrasonic transformer (12) is connected with wire feeding mouth (10); Pretensioner systems comprises: the bolt (3) of screw-in ultrasonic amplitude transformer (12) bottom, screwed hole (4), preloading spring (5), the U-shaped slide block (7) contacted with welding wire (9), chute (6) form; U-shaped slide block (7) puts into chute (6), U-shaped slide block inwall contacts with welding wire (9), preloading spring (5) connects U-shaped slide block (7), and bolt (3) screws in screwed hole (4) and is connected with preloading spring (5).
2. ultrasonic vibration welding wire according to claim 1 assists the device of solder without soldering acid, it is characterized in that: be delivered in the welding wire (9) sent to for what ensure ultrasonic vibration continuous and effective, ultrasonic transformer (12) bottom arranges pretensioner systems, pretensioner systems is by the degree of depth of adjusting bolt (3) precession screwed hole (4), change the compression stress of preloading spring (5), thus ensure the inwall close contact of welding wire (9) and ultrasonic transformer (12) and U-shaped slide block (7), what ultrasonic vibration was continued smoothly is delivered in welding wire (9).
3. one kind adopts the ultrasonic vibration welding wire described in claim 1 or 2 to assist the ultrasonic vibration welding wire of solder without soldering acid device to assist solder without soldering acid method; it is characterized in that; technological parameter 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; ultrasonic transducer amplitude is 1-10 μm; ultrasonic amplitude transformer amplitude is 20-200 μm, wire feeding mouth and workpiece angle 15-45 °.
4. ultrasonic vibration welding wire according to claim 1 and 2 assists the device of solder without soldering acid, it is characterized in that: this device is suitable for I type, Y type, V-type and x-weld form, and joint is docking, overlaps or bead structure; In welding process, welding wire and liquid metal remain stable close contact, thus ensure that ultrasonic vibration is delivered in fusing solder continuously.
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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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| 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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| CN104668690B CN104668690B (en) | 2016-09-07 |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109807418A (en) * | 2019-03-24 | 2019-05-28 | 北京工业大学 | A kind of high-frequency vibration laser is from fuse welding method |
| CN110280902A (en) * | 2019-06-28 | 2019-09-27 | 沈阳富创精密设备有限公司 | A kind of laser welding process of 6 line aluminium alloy cylinder longitudinal joint |
| CN110539061A (en) * | 2019-09-06 | 2019-12-06 | 哈尔滨工业大学（威海） | device and method for side-added ultrasonic-assisted underwater wet welding |
| CN110961789A (en) * | 2019-11-26 | 2020-04-07 | 哈尔滨工业大学（威海） | Laser scanning-vibration hot wire TIG (tungsten inert gas) hybrid welding method |
| CN111482679A (en) * | 2020-03-27 | 2020-08-04 | 江苏大学 | Ultrasonic vibration welding wire assisted gas shielded composite welding device and method |
| CN111761171A (en) * | 2019-12-24 | 2020-10-13 | 哈尔滨工业大学（威海） | Auxiliary welding wire vibration device special for electric arc additive |
| CN111822856A (en) * | 2020-06-10 | 2020-10-27 | 南京航空航天大学 | Ultrasonic vibration assisted double-laser-beam bilateral synchronous wire filling welding device and method for T-shaped joint |
| CN112692293A (en) * | 2020-12-11 | 2021-04-23 | 浙江工业大学 | Handheld material increase repair process method for turbine blade |
| CN112719571A (en) * | 2020-12-28 | 2021-04-30 | 浙江工业大学 | Handheld material increase repair laser wire feeding head |
| RU204258U1 (en) * | 2021-03-16 | 2021-05-17 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Волгоградский государственный технический университет" (ВолгГТУ) | Device for processing the weld pool melt by ultrasonic vibrations |
| CN113913817A (en) * | 2021-10-21 | 2022-01-11 | 宁波镭速激光科技有限公司 | Wire laser cladding auxiliary device and wire laser cladding method |
| CN113909718A (en) * | 2021-12-01 | 2022-01-11 | 国家高速列车青岛技术创新中心 | Welding system and method for reducing aluminum alloy laser-arc composite welding pores |
| CN114107983A (en) * | 2021-10-21 | 2022-03-01 | 宁波镭速激光科技有限公司 | Wire laser cladding layer quality improving device and improving method |
| CN114131199A (en) * | 2021-12-28 | 2022-03-04 | 浙江工业大学 | Wire-guided ultrasonic-assisted laser additive repair device and method |
| CN115846815A (en) * | 2023-02-17 | 2023-03-28 | 华中科技大学 | Ultrasonic vibration assists wire drive feed unit |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1345645A (en) * | 2000-09-22 | 2002-04-24 | 哈尔滨工业大学 | Ultrasonic laser flux-free soft soldering method |
| US20040211761A1 (en) * | 2003-04-24 | 2004-10-28 | Rumer Christopher L. | 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 |
| CN101195183A (en) * | 2007-12-24 | 2008-06-11 | 哈尔滨工业大学 | Ultrasound wave auxiliary laser braze (fuse) welding method |
| 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 |
| CN103143848A (en) * | 2013-03-26 | 2013-06-12 | 哈尔滨工业大学（威海） | Vertical welding method for applying ultrasonic-arc hybrid |
| 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 |
-
2015
- 2015-02-09 CN CN201510068031.5A patent/CN104668690B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1345645A (en) * | 2000-09-22 | 2002-04-24 | 哈尔滨工业大学 | Ultrasonic laser flux-free soft soldering method |
| US20040211761A1 (en) * | 2003-04-24 | 2004-10-28 | Rumer Christopher L. | 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 |
| CN101195183A (en) * | 2007-12-24 | 2008-06-11 | 哈尔滨工业大学 | Ultrasound wave auxiliary laser braze (fuse) welding method |
| 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 |
| CN103143848A (en) * | 2013-03-26 | 2013-06-12 | 哈尔滨工业大学（威海） | Vertical welding method for applying ultrasonic-arc hybrid |
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109807418A (en) * | 2019-03-24 | 2019-05-28 | 北京工业大学 | A kind of high-frequency vibration laser is from fuse welding method |
| CN110280902A (en) * | 2019-06-28 | 2019-09-27 | 沈阳富创精密设备有限公司 | A kind of laser welding process of 6 line aluminium alloy cylinder longitudinal joint |
| CN110539061B (en) * | 2019-09-06 | 2021-12-24 | 哈尔滨工业大学（威海） | Device and method for side-added ultrasonic-assisted underwater wet welding |
| CN110539061A (en) * | 2019-09-06 | 2019-12-06 | 哈尔滨工业大学（威海） | device and method for side-added ultrasonic-assisted underwater wet welding |
| CN110961789A (en) * | 2019-11-26 | 2020-04-07 | 哈尔滨工业大学（威海） | Laser scanning-vibration hot wire TIG (tungsten inert gas) hybrid welding method |
| CN111761171A (en) * | 2019-12-24 | 2020-10-13 | 哈尔滨工业大学（威海） | Auxiliary welding wire vibration device special for electric arc additive |
| CN111482679A (en) * | 2020-03-27 | 2020-08-04 | 江苏大学 | Ultrasonic vibration welding wire assisted gas shielded composite welding device and method |
| CN111822856A (en) * | 2020-06-10 | 2020-10-27 | 南京航空航天大学 | Ultrasonic vibration assisted double-laser-beam bilateral synchronous wire filling welding device and method for T-shaped joint |
| CN112692293A (en) * | 2020-12-11 | 2021-04-23 | 浙江工业大学 | Handheld material increase repair process method for turbine blade |
| CN112719571A (en) * | 2020-12-28 | 2021-04-30 | 浙江工业大学 | Handheld material increase repair laser wire feeding head |
| RU204258U1 (en) * | 2021-03-16 | 2021-05-17 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Волгоградский государственный технический университет" (ВолгГТУ) | Device for processing the weld pool melt by ultrasonic vibrations |
| CN113913817A (en) * | 2021-10-21 | 2022-01-11 | 宁波镭速激光科技有限公司 | Wire laser cladding auxiliary device and wire laser cladding method |
| CN114107983A (en) * | 2021-10-21 | 2022-03-01 | 宁波镭速激光科技有限公司 | Wire laser cladding layer quality improving device and improving method |
| CN113909718A (en) * | 2021-12-01 | 2022-01-11 | 国家高速列车青岛技术创新中心 | Welding system and method for reducing aluminum alloy laser-arc composite welding pores |
| CN114131199A (en) * | 2021-12-28 | 2022-03-04 | 浙江工业大学 | Wire-guided ultrasonic-assisted laser additive repair device and method |
| CN115846815A (en) * | 2023-02-17 | 2023-03-28 | 华中科技大学 | Ultrasonic vibration assists wire drive feed unit |
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