In the process of metal welding, in order to keep the surface smooth and beautiful, the following rules should be followed in welding:
1, in the welding of aluminum and other good thermal conductivity of metal, in order to reduce the welding deformation, should be used than the base metal heat conduction speed welding speed.
2, welding hot cracking tendency of the alloy can not use high speed welding.
3, the weld pool size will be directly affected by the welding speed, when only in non flat position welding pool is small, should be appropriate to increase the welding speed.
4, in the process of metal welding in accordance with certain rules of welding, can ensure the quality of the product quality and beauty.
5, due to a variety of welding methods have some differences, so to keep in mind the rules of welding, can prevent the problem of welding defects. The process of welding from the base metal and the welding rod to the formation, retention and crystallization of the molten pool has undergone many metallurgical chemical reactions.
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