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Welding gun head as well as laser and electric arc composite welding device and method

A laser arc and welding torch head technology, applied in the field of laser arc hybrid welding device and welding torch head, can solve the problems of low welding efficiency and low energy utilization rate of single laser welding, and achieve good welding quality, high photoelectric conversion efficiency, and high reliability. good effect

Pending Publication Date: 2020-01-10
SOUTHWEST JIAOTONG UNIV
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Problems solved by technology

[0003] Laser welding has the advantages of high heat source energy density and strong penetration ability, but the energy utilization rate of continuous laser single laser welding is extremely low; arc welding has the advantages of simple process equipment and mature technology, but the welding efficiency is not high

Method used

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  • Welding gun head as well as laser and electric arc composite welding device and method
  • Welding gun head as well as laser and electric arc composite welding device and method

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Embodiment

[0036] The embodiment of the present application provides a hybrid laser arc welding device 100, which is used for hybrid welding of the workpiece 01 to be welded, so as to improve welding efficiency and welding quality. The laser arc hybrid welding device 100 includes a welding torch head 10, which is used to combine the pulsed laser and the TIG electric arc, so that the pulsed laser and the TIG electric arc are simultaneously emitted from the nozzle port 11 of the welding torch head 10, and the pulsed laser beam is positioned at the TIG. The center position of the arc.

[0037] Existing laser welding has the characteristics of high heat source energy density and strong penetration ability. However, there are also materials with low laser absorption rate, especially non-ferrous metals such as aluminum alloy, which lead to extremely low energy utilization rate of laser welding; the process equipment of arc welding is simple and the technology is mature. However, there is a di...

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Abstract

The embodiment of the invention provides a welding gun head as well as a laser and electric arc composite welding device and method, and relates to the technical field of welding. The welding gun headcomprises a welding gun body, a conductive nozzle and a tungsten electrode assembly, wherein the welding gun body is provided with a nozzle opening, the conductive nozzle is arranged in the welding gun body, the tungsten electrode assembly is connected to the conductive nozzle, and a penetrating hole is formed in the tungsten electrode assembly. The laser and electric arc composite welding devicecomprises a pulse laser, a TIG electric arc welder and the welding gun head, wherein the pulse laser comprises a laser lens which is used to provide pulsed laser, the TIG electric arc welder is electrically connected to the conductive nozzle and is used to provide a power supply, the pulsed laser produced by the pulse laser can be ejected from the nozzle opening after passing through the penetrating hole, the tungsten electrode assembly generates an electric arc under the action of the TIG electric arc welder, and the pulsed laser is located in the center position of the electric arc. According to the composite welding method, the pulsed laser and the electric arc are compounded, and the pulsed laser beam passes through the center position of the electric arc, so that the energy consumption is reduced, the reachability is increased, the energy utilization rate is enhanced, and the welding efficiency is improved.

Description

technical field [0001] The present application relates to the field of welding technology, in particular, to a welding torch head, laser arc hybrid welding device and method. Background technique [0002] As global resources become increasingly tense, reducing energy consumption and saving costs is becoming more and more important for industrial production. [0003] Laser welding has the advantages of high heat source energy density and strong penetration ability, but the energy utilization rate of continuous laser single laser welding is extremely low; arc welding has the advantages of simple process equipment and mature technology, but the welding efficiency is not high. Contents of the invention [0004] The purpose of this application includes, for example, to provide a torch head, laser arc hybrid welding device and method, which can combine pulsed laser welding and TIG arc welding, enhance energy utilization, increase accessibility, and improve welding efficiency. ...

Claims

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Application Information

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IPC IPC(8): B23K26/348B23K26/14B23K26/70
CPCB23K26/348B23K26/14B23K26/702
Inventor 雷正朱宗涛陈辉黄举近刘瑞琳
Owner SOUTHWEST JIAOTONG UNIV
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