深孔加工难度高、加工工作量大,已成为机械加工中的关键性工序。难切削材料的深孔加工及孔型复杂的深孔加工成为深孔加工技术中最为关键的问题。现列举了一“孔径两端小中间大的深孔加工”的实例,从加工难点、刀具设计及附件设计进行分析。 Deep hole processing is difficult, the processing workload, has become a key process in machining. Deep-hole machining of hard-to-cut materials and complex deep-hole machining of holes become the most critical issue in deep hole machining. Now enumerated a “small hole at both ends of the middle of the deep hole processing ” example, from the processing difficulties, tool design and accessories design analysis.