Laser welding device

A technology of laser welding and welding head, which is applied in the direction of laser welding equipment, welding equipment, metal processing equipment, etc., can solve the problems of softening and melting of plastic pipes, and achieve the effect of improving the coupling effect
CN109128501AInactive Publication Date: 2019-01-04SHANGHAI SPACE PRECISION MACHINERY RES INST
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SHANGHAI SPACE PRECISION MACHINERY RES INST
Publication Date
2019-01-04
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention provides a laser welding device. The laser welding device comprises a laser welding system and a gas protection system. The gas protection system comprises a adapter, a gas pipe, a gas source, a flexibly bent plastic pipe and a nozzle, wherein the adapter is connected to a welding head of the laser welding system; the adapter is connected with one end of the gas pipe; the gas sourceis connected with the other end of the gas pipe; one end of the flexibly bent plastic pipe communicates with one end of the gas pipe; the nozzle is arranged at the other end of the flexibly bent plastic pipe; and a adiabatic transition tube is arranged at the other end of the flexibly bent plastic pipe, and the nozzle is arranged at the other end of the flexibly bent plastic pipe through the adiabatic transition tube. Compared with the prior art, the laser welding device has the beneficial effects that inert gas space is formed nearby a laser action region, protection of follow-up gas of a complex path is realized, plasma cloud above a welding region is effectively blown down, the coupling effect of a laser beam and a metallic work is improved, and a weld joint still in a high temperaturestate is effectively protected.
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Description

technical field

[0001] The invention relates to the field of laser welding, in particular to a laser welding device. Background technique

[0002] As a precise, efficient and fast welding method, laser welding has been more and more widely used in the aerospace field. Laser welding can be simply summarized as such a process: first, the focused laser beam is irradiated on the surface of the metal workpiece, and the metal workpiece material melts after absorbing the laser light. After the metal workpiece and the laser beam move relatively, the melted metal workpiece solidifies and crystallizes after the laser beam leaves. , forming a weld. Laser welding is divided into two modes: heat conduction welding and deep penetration welding. Among them, deep penetration welding has material melting, gasification and plasmaization, and has a small hole effect, and the weld depth-to-width ratio is large. It is the main application of laser welding industry. method.

[0003] In the abo...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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