1. 切削(xue)力大,切削(xue)温度(du)高
不(bu)锈钢整机强度大,切削(xue)时切向(ওxiang)应力(li)大、塑性变形大,因此(ci)切削(xue)力(li)大.另外(wai)资(zi)料导热(re)性极差,形成(cheng)切削(🥂xue)温度降低,且低温常常集合在刀具(ju)(ju)刃口四周的(de)狭长地区内,从而加(jia)速了刀具(ju)(ju)的(de)磨损.
2. 加工(gong)软(ruan)化严峻
奥氏体(ti)不锈(xiu)钢和一(yi)些低温(wen)合金(jin)不锈(☂xiu)钢均为(wei)奥氏体(ti)构(gou)造,切(qie)削时加工(gong)软化偏向大,凡(fan)是是通俗碳素钢的数倍(bei),刀具在(zai)加工(gong)软化地区内切(qie)削,使刀具寿(shou)名(ming)延长.
3. 轻易粘(zhan)刀(dao)
不管是奥氏体不锈(xiu)钢仍是马氏体不锈(xiu)钢均(jun)存在加工时(shi)切屑强韧(ren)(ren)、切削温度(du)很高(gao)的(de)特色(se).当强韧(ren)(ren)的(de)切屑流经前⛎刀面时(shi),将发(fa)生粘结、熔焊等粘刀景象(xiang),影响加工整机外表粗拙(zhuo)度(du).
4. 刀具磨损加速
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