1. 切削力大,切削温度(du)高
不锈钢整机(ji)强度(du)大,切削时切向(xiang)应(ying)力(li)ꦆ大、塑性变形大,因此切削力(li)大.另外(wai)资料导热性极差(cha),形成切削温度(du)降(jiang)低,且低温常常集合在刀具(ju)(ju)刃口四周的狭长地(di)区内,从而(er♛)加速了刀具(ju)(ju)的磨损.
2. 加工(gong)软(ruan)化严峻
奥(ao)氏🅰体不(bu)锈钢(gang)和一些低温合(he)金不(bu)锈钢(gang)均为奥(ao)氏体构造,切(qie)削时(shi)加工(gong)软化偏(pian)向(xiang)大,凡是(shi)是(shi)通(tong)俗🔜(su)碳素钢(gang)的数倍,刀(dao)具(ju)在(zai)加工(gong)软化地(di)区内切(qie)削,使刀(dao)具(ju)寿(shou)名延(yan)长(zhang).
3. 轻易粘刀(dao)
不(bu)管是奥氏体不(bu)锈(xiu)钢(gang)仍是马氏体不(bu)锈(xiu)钢(gang)均(jun)存在加(jia)工(gong)时切(qie)屑(xie)强(qiang)韧、切(qie)削温度很高的(de)特色.当强(qiang)韧的(de)切(qie)屑(xie)♉流经前刀面时,将发生(sheng)粘结、熔焊等粘🐽刀景象,影响加(jia)工(gong)整(zheng)机外表粗拙(zhuo)度.
4. 刀具磨损加速(su)
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