Double-beam laser arc composite single-surface horizontal position welding method and device

A laser arc and composite device technology, applied in laser welding equipment, welding equipment, metal processing equipment, etc., can solve the problems of undercut and sidewall failure to fuse, prevent sidewall failure, reduce porosity, and improve stability. sexual effect

Active Publication Date: 2022-02-08
NORTH CHINA UNIV OF WATER RESOURCES & ELECTRIC POWER
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Problems solved by technology

[0005] In order to solve the problems of unfused defects and undercuts on the side wall in laser-GMAW composite horizontal welding, increase the frequency of droplet transfer, improve the eff

Method used

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  • Double-beam laser arc composite single-surface horizontal position welding method and device
  • Double-beam laser arc composite single-surface horizontal position welding method and device
  • Double-beam laser arc composite single-surface horizontal position welding method and device

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Embodiment Construction

[0022] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0023] A dual-beam laser arc composite single-sided horizontal welding method, comprising the following steps:

[0024] Step 1: first process the welding groove on one surface of the welding workpiece 1, then process the surface of the welding workpiece 1 and the welding groove, and fix the welding workpiece 1 in a horizontal welding manner;

[0025] Step 2: A dual-beam laser arc composite device is arranged on the side to be welded o...

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Abstract

The invention provides a double-beam laser arc composite single-surface horizontal position welding method and device. The welding method comprises the following steps: carrying out surface treatment on a welding workpiece, and fixing the welding workpiece; arranging a double-beam laser arc composite device and an air injection device on the to-be-welded side of the welding workpiece; and setting welding process parameters, starting the air injection device and the double-beam laser arc composite device, and carrying out horizontal position welding. A horizontal position welding device used in the welding method comprises a double-beam laser arc composite device and an air injection device. The double-beam laser arc composite device comprises a TIG welding gun, a first laser, a second laser and a GMAW welding gun which are sequentially arranged in the welding direction. The air injection device is placed on the side edge below the first laser device, and the flow and the direction of a sprayed shielding gas can be adjusted. According to the welding method, the problems of incomplete fusion and undercut of the side wall are solved, the porosity of a welding seam is reduced, and the welding efficiency is improved.

Description

technical field [0001] The invention relates to the field of laser welding, in particular to a double-beam laser arc composite single-side horizontal welding method and device. Background technique [0002] Laser-GMAW (Gas Shielded Gas Shielded Arc) hybrid horizontal welding is an important connection form. Compared with horizontal welding, the transfer behavior of droplets during horizontal welding is more complicated due to the influence of gravity. The key to forming the seam and suppressing the welding defects such as incomplete fusion and incomplete penetration of the lateral welding side wall. Laser power and filament spacing (distance between laser and welding wire) are the main influencing factors. The greater the laser power, the smaller the filament spacing, and the greater the influence of the laser on the arc droplet transfer behavior. [0003] During the laser-GMAW hybrid horizontal welding process, the laser keyhole metal plasma fluctuates periodically, and th...

Claims

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Application Information

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IPC IPC(8): B23K26/348B23K26/70
CPCB23K26/348B23K26/702
Inventor 彭进杨晓红张正中许红巧蒋正权凌自成王星星李帅龙伟民倪增磊王永彪王博王冰马国龙
Owner NORTH CHINA UNIV OF WATER RESOURCES & ELECTRIC POWER
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