Rotary double focus laser-MIG electric arc composite welding head

A hybrid welding and laser welding technology, applied in laser welding equipment, arc welding equipment, welding equipment, etc., can solve the problems of unfavorable welding process stability, poor weld bridging ability, low laser utilization rate, etc., to improve thermal influence The occurrence of area defects, the reduction of assembly precision requirements, and the effect of improving process performance
CN1586788AInactive Publication Date: 2005-03-02BEIHANG UNIV +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
BEIHANG UNIV
Publication Date
2005-03-02
Estimated Expiration
Not applicable · inactive patent

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Abstract

The composite rotary double focus laser-MIG electric arc welding head includes mainly two parts, the rotary double focus laser welding head and the MIG electric arc welding wire feeding welding gun, connected via a connecting plate. It has welding wire feeder fixed on the connecting plate, welding wire feeding hose connected to the feeder, conducting nozzle and goose neck for welding wire to pass through; protecting nozzle in the end of the goose neck; and rotating table with reflecting cavity, regulating frame, reflector, connecting barrel and welding laser head. The present invention combines the rotary double focus laser welding and the MIG electric arc welding, and has greatly raised welding performance and lowered assembling precision requirement for even wide application.
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Description

technical field

[0001] The invention relates to a rotating dual-focus laser-MIG arc compound welding joint. Background technique

[0002] The existing laser-arc recombination mainly includes laser and TIG, Plasma and GMA. Through the interaction between the laser and the arc, the shortcomings of the single method can be overcome, and then a good compound effect can be produced. During combined processing, the plasma generated by the laser is conducive to the stability of the arc and improves the processing efficiency.

[0003] At present, the laser focus in the hybrid welding process is fixed. The problems encountered in the process are mainly due to the very thin diameter of the laser beam, the small focus diameter, and the poor bridging ability of the weld seam. The groove assembly gap is required to be less than 0.5mm. The tracking accuracy is high, and at the same time, the thermal efficiency is very low before the molten pool is formed, and the weld bridging ability i...

Claims

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