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Briefly introduce the development achievements of modern welding technology

Date:2021-12-30 Views:889

The development achievements of modern welding technology include laser welding equipment production and research, mainly producing kilowatt level CO2 laser equipment and solid YAG laser equipment below 1 kilowatt. The research on laser welding in China mainly focuses on the formation mechanism, characteristic analysis, detection, control, simulation of deep penetration laser welding, application of laser arc composite heat source, laser surfacing, and so on.





The university analyzed the acoustic signals of the penetration state from the perspectives of sound and electricity, and proposed an equivalent circuit and mathematical model of electrical characteristics for laser welding plasma; In terms of suppressing the negative effects of plasma, Xiao Rongshi and Zuo Tiechuan from the National Institute of Industry, University, and Research Laser Technology Center proposed the method of blowing dissimilar gases through double-layer inner and outer circular tubes; Liu Jinhe from Northwestern Polytechnical University proposed the external magnetic field method.

Electron beam welding: China's self-developed electron beam welding machine began in the 1960s. Up to now, it has developed and produced over a hundred electron beam welding machines of different types and functions, and has formed a technical team for research and production, which can provide low-power electron beam welding machines for the domestic market.

At present, the EBW series of automotive gear specialized electron beam welding machines, represented by the Institute of Electrical Engineering of the Chinese Academy of Sciences, occupy the main market share of automotive gear electron beam welding in China; China's small and medium-sized power electron beam welding machines have approached or caught up with the advanced level of similar foreign products, and the price is only about 1/4 of that of similar foreign products, showing a clear performance price advantage.

The development achievements of modern welding technology include laser welding equipment production and research, mainly producing kilowatt level CO2 laser equipment and solid YAG laser equipment below 1 kilowatt. The research on laser welding in China mainly focuses on the formation mechanism, characteristic analysis, detection, control, simulation of deep penetration laser welding, application of laser arc composite heat source, laser surfacing, and so on.





The university analyzed the acoustic signals of the penetration state from the perspectives of sound and electricity, and proposed an equivalent circuit and mathematical model of electrical characteristics for laser welding plasma; In terms of suppressing the negative effects of plasma, Xiao Rongshi and Zuo Tiechuan from the National Institute of Industry, University, and Research Laser Technology Center proposed the method of blowing dissimilar gases through double-layer inner and outer circular tubes; Liu Jinhe from Northwestern Polytechnical University proposed the external magnetic field method.

Electron beam welding: China's self-developed electron beam welding machine began in the 1960s. Up to now, it has developed and produced over a hundred electron beam welding machines of different types and functions, and has formed a technical team for research and production, which can provide low-power electron beam welding machines for the domestic market.

At present, the EBW series of automotive gear specialized electron beam welding machines, represented by the Institute of Electrical Engineering of the Chinese Academy of Sciences, occupy the main market share of automotive gear electron beam welding in China; China's small and medium-sized power electron beam welding machines have approached or caught up with the advanced level of similar foreign products, and the price is only about 1/4 of that of similar foreign products, showing a clear performance price advantage.