Ultrasound-assisted laser brazing method and device for dissimilar-metal assembly piece

A dissimilar metal and laser-assisted technology, which is applied in laser welding equipment, metal processing equipment, welding equipment, etc., can solve problems such as large penetration depth, high requirements for welding clamping precision, and narrow weld seam

Active Publication Date: 2017-10-03
山东承坤信息科技有限公司
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Problems solved by technology

[0003] However, compared with traditional arc welding and other welding methods, laser welding...

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  • Ultrasound-assisted laser brazing method and device for dissimilar-metal assembly piece
  • Ultrasound-assisted laser brazing method and device for dissimilar-metal assembly piece
  • Ultrasound-assisted laser brazing method and device for dissimilar-metal assembly piece

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Embodiment Construction

[0058] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0059] Such as figure 1 As shown, the dissimilar metal assembly 7 of the present invention is composed of an A metal column 701 and a B metal base 702, and the A metal column 701 and the B metal base 702, and the dissimilar metal assembly 7 formed after the two are assembled and welded are all Axisymmetric structure, the A metal column 701 is a prism structure, the cross section is a polygon, and the material is A metal, for example, it can be a copper column. The material of the B metal base is B metal, which is different from the material of the A metal column 701, for example, it may be a brass base. The surface of the B metal base 702 is provided with a profiling hole for assembling with the A metal column 701, and also provided with three positioning through holes. One end of the metal post 701 of A is inserted into the profili...

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Abstract

The invention provides an ultrasound-assisted laser brazing method for a dissimilar-metal assembly piece. The ultrasound-assisted laser brazing method for the dissimilar-metal assembly piece comprises the steps that (1) a locating die is used for clamping a A-metal stand column; (2) the upper end of the A-metal stand column is heated to be soft; (3) the upper end, which is induction-heated and softened, of the A-metal stand column is inserted into a profiling hole of a B-metal base, and then a dissimilar-metal laser welded preassembly piece is obtained; (4) an ultrasonic vibration source connected with a locating die assembly is started, the laser is emitted out, under the auxiliary action of an ultrasonic vibration composite energy field, a laser-MIG composite welding head conducts melt-brazing along the outline of a connection face of the A-metal stand column and the B-metal base; and (5) the dissimilar-metal laser welded assembly piece is transfers to a conveyer belt and then falls into a material box. By the adoption of the ultrasound-assisted laser brazing method for the dissimilar-metal assembly piece, the large-fusion-depth narrow-weld-joint welding effect can be achieved, and a welded connector better in metallurgical quality is obtained. The invention further provides an ultrasound-assisted laser brazing device for the dissimilar-metal assembly piece.

Description

technical field [0001] The invention belongs to the field of laser welding, and in particular relates to an ultrasonic-assisted laser brazing method and device for dissimilar metal assemblies. Background technique [0002] Welding of dissimilar metal materials is an effective way to solve components to meet various performance requirements at the same time. There are many welding methods, such as argon arc welding, resistance welding, friction welding, electron beam welding and laser welding. Compared with other welding methods, laser welding has the characteristics of concentrated heat source density, large weld depth-to-width ratio, small heat-affected zone, and good controllability. Compared with electron beam welding, laser welding has lower requirements for the atmosphere and usually does not require a vacuum environment. . [0003] However, compared with traditional arc welding and other welding methods, laser welding requires high precision of welding clamping due t...

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Application Information

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IPC IPC(8): B23K26/346B23K26/70
CPCB23K26/346B23K26/702B23K2103/18
Inventor 魏鑫磊于艳玲
Owner 山东承坤信息科技有限公司
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