主轴锻件裂纹原因分析研究  

Analysis and Research on Crack Cause of Spindle Forging

作　　者：姜涛 冉玲 Jiang Tao;Ran Ling

机构地区：[1]二重(德阳)重型装备有限公司

出　　处：《大型铸锻件》2019年第6期50-51,共2页Heavy Casting and Forging

摘　　要：材质为42CrMo的主轴锻件,调质热处理后锻件轴身中间部位有纵向裂纹,通过一系列的理化检验分析,发现该裂纹为淬火裂纹,是由锻件内部存在缺陷造成的。The main shaft forging made of 42 CrMo4 has longitudinal cracks in the middle part of the shaft after quenching and tempering heat treatment. Through a series of physical and chemical tests and analyses,it has been found that the cracks are quenching cracks caused by internal defects in the forging.

关 键 词：主轴锻件 疏松孔洞 淬火裂纹 

分 类 号：TG316.1[金属学及工艺—金属压力加工]