用剪切的方法生产管状(空心)零件具有显著的经济效益,但一般的切管方法很难获得精确的管件,本文分析了管材剪切过程中的分离机理及提高剪切质量的基本途经,论述了管材偏心渐进剪切的工作原理和工艺要点。作者的试验研究表明,这是一种精密的切管方法,可用于实际生产。 It is very economical to produce tubular (hollow) parts by shearing method. However, it is very difficult to obtain accurate pipe fittings by the common method of pipe cutting. This paper analyzes the separation mechanism and the basic ways of improving shearing quality during the pipe shearing process, Discussed the progressive eccentric tube cutting work principle and process points. The author’s experimental study shows that this is a sophisticated pipe cutting method that can be used in actual production.