我厂引进联邦德国电站给水泵80CHTA/4,其泵筒体上有12个M100×3的盲孔,它是承受高压的关键部位。由于结构限制,只能在钻床上用丝锥加工,原使用常规结构(国家标准最大为M52)三支一套的直槽丝锥加工,加工出的丝孔不但偏大,还经常乱扣,表面粗糙度高,并时常出现光孔。针对这一关键,厂技协组织研究、设计、制造了内贮屑丝锥(见附图)。内贮屑丝锥的工作原理是切削校 I plant the introduction of the Federal Republic of Germany to the pump 80CHTA / 4, the pump cylinder has 12 M100 × 3 blind holes, it is to withstand high pressure of the key parts. Due to structural constraints, the tap can only be machined on the drilling machine. The original use of straight-taps with a conventional structure (maximum national standard M52) of three straight taps, the processed wire holes are not only too large, but also often chaos buckle, the surface roughness High degree, and often appear light hole. In response to this key, the plant technology association research, design, manufacture of internal chip shavers (see photo). Inside the chip breaker tap working principle is cutting school