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31. Gaseous helium is used as an inert shielding gas in metal arc and laser welding.
32. At the same time, the technology of laser welding with hot wire addition, multi pass welding technology and dissimilar metal joints welding technology are also introduced.
33. It has promising prospect in material processing, laser welding, medicine treatment and military.
34. And emphasizes the applications of laser welding, beam welding and plasma welding in the automobile industry.
35. The penetration depth of metal can be increased by selecting correct gas - assisting blowing in laser welding.
36. A manufacturing method that uses laser welding process to produce corrugated copper-tube outer conductor of coaxial cable is proposed.
37. Then we carry on the study and development on laser welding equipment with high beam quality.
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