一、前言积屑瘤(Built-up edge,简称BUE)是切削过程中一个独特而又重要的物理现象。BUE对切削加工的影响与其在切削过程中的随机性密切相关。随机性小时有利于切削加工,随机性大则将造成严重的有害影响。以前苏联Т.Н.Лоладзе为首的学者认为BUE在切削过程中不稳定,是周期、高频地产生与脱落的,其频率可达每秒几十次、几百次,甚至上千次。德国人F.Sehwerd等则认为BUE的头部在切削过程中是周期、高频地脱落与生长的,而BUE的底部却相对地比较稳定。此外,他还认为BUE的 I. Introduction Built-up edge (BUE) is a unique and important physical phenomenon in the cutting process. The impact of BUE on the cutting process is closely related to its randomness in the cutting process. Random hours are conducive to cutting, randomness will cause serious adverse effects. Scholars led by the former Soviet Union Т.Н.Лоладзе believe that BUE is unstable during the cutting process, generating and shedding periodically, at frequencies of tens, hundreds and even thousands of times per second. German F.Sehwerd, etc. that the head of the BUE cycle in the cutting process, high frequency shedding and growth, while the bottom of the BUE is relatively stable. In addition, he also considered BUE