在金属切削过程中,经常可以看到,在工件的被加工表面上,出现拉毛或一道道划的沟痕等现象,在这时候如果仔细看看刀具的刀尖附近,往往会粘结着一小块金属(如图1)。由于这小块金属形成一个硬疙瘩好像有些病人长的瘤子一样,所以在金属切削中,就把它称做积屑瘤或者叫做刀瘤。产生积屑瘤,这个现象,人们很容易发现,但若进一步追问,积屑瘤是怎样产生的,并且,它对加工又有甚么影响 In the metal cutting process, you can often see that in the workpiece surface is machined, there is a razor or a row of scratches and other phenomena, at this time if you look closely at the knife near the tip, often a Small pieces of metal (Figure 1). Since this small piece of metal forms a hard knot that looks like a long tumor in some patients, it is called a build-up or tumor called a tumor in metal cutting. It is very easy for people to find this phenomenon. However, if further questions are asked about how the BUE is produced and how it affects the processing