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高合金粉末高速钢立铣刀日立工具公司采用高合金粉末高速钢作为基体材料，开发出一种粗加工用的立铣刀，并经特殊涂层处理。这种立铣刀是在该公司原有产品ＥＳＭ立铣刀基础上，加以改进后的产品。两者所用的基体材料一样，ＥＳＭ立铣刀未涂层，新产品则经涂层处理，其工具...
High-alloy powder high-speed steel end mill Hitachi Tools Co., Ltd. uses high-alloy powder high-speed steel as the base material to develop a roughing mill with a special coating. This end mill is based on the company’s original product ESM end mill, based on improved products. Both use the same base material, ESM end mills uncoated, new products are coated, the tools ...