随着科学技术和工业生产的发展,在机械制造、国防工业中广泛采用高温台金、耐热钢、不锈钢、淬火钢、钛合金、冷硬铸铁等材料。这些材料具有良好的耐热性、耐酸性、耐腐蚀性、优异的高温高强机械性能,是用常规牌号硬质合金刀具和常规方法不能进 With the development of science and technology and industrial production, materials such as high temperature Taijin, heat-resistant steel, stainless steel, hardened steel, titanium alloy and chilled cast iron are widely used in machinery manufacturing and national defense industry. These materials have good heat resistance, acid resistance, corrosion resistance, excellent high temperature high-strength mechanical properties, is the use of conventional grades cemented carbide tools and conventional methods can not enter