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Selection and use of stainless steel twist drill
- Jan 09, 2018 -

According to the above characteristics of stainless steel, how to choose the right twist drill is very important, a reasonable choice of tool material is to ensure efficient machining of stainless steel an important condition. According to the cutting characteristics of stainless steel, stainless steel twist drill requires processing materials should have good heat resistance, high wear resistance, and stainless steel affinity and small features. Currently used twist drill materials are super-hard high-speed steel, high-speed powder metallurgy and carbide three. 1. High-cobalt drill: high-speed steel generally use high-speed steel (M35 cobalt 5%, M42 cobalt 8%) high-speed steel powder metallurgy (ASP23, ASP30, etc.), including M35 Johnson and M42, Especially recommended powder metallurgy HSS, its wear resistance, toughness and other advantages and M42.But its disadvantage is the high price, is ordinary high-speed steel 3 - 5 times.