长期来我厂在提高刀具质量的三大环节(锻造、热处理、刃磨)中,刃磨是其中最薄弱的环节。在现埸使用中,常出现刀具寿命低、“累刀”等现象,其中以铰刀和螺纹刀具为最甚,刃磨烧伤是造成这种现象的主要原因。由于没有解决冷却方法,总是使用干磨,刃磨用量亦因人因时而异,特别是在磨前刃面时,由于接触面大、发热量高,极易产生烧伤。烧伤使高速钢、合金工具钢和碳素工具钢的表面层组织发生变化,随磨削方式和磨削用量的不同,烧伤 Long-term to improve the quality of our plant in the three major links (forging, heat treatment, grinding), grinding is one of the weakest link. In the present use, there are often low tool life, “tired knife” and other phenomena, of which reamer and thread cutter is the worst, burn grinding is the main reason for this phenomenon. Because there is no solution to the cooling method, always use dry grinding, sharpening dosage varies from person to person, especially in the grinding front blade surface, due to large contact surface, high heat, easily burn. Burn makes the surface layer structure of high-speed steel, alloy tool steel and carbon tool steel changes, with the grinding method and the amount of grinding different, burns