42CrMo曲轴镦锻开裂原因分析  

Analyzing the Cause of 42CrMo Crankshaft Cracking by Upset Forged

作　　者：蔡铁庄 王文[1] 

机构地区：[1]天津市天重江天重工有限公司理化检测中心,天津300400

出　　处：《大型铸锻件》2009年第4期24-26,共3页Heavy Casting and Forging

摘　　要：通过对三件中碳42CrMo钢曲轴镦锻加热断裂原因的分析,发现工件内部存在稳定过热,同时材料中的氮化物夹杂也加剧了脆断。By analyzing the cause of the breaking open of three medium carbon 42CrMo steel crankshafts by upset forging heating, discovered that the stability overheating existed inside workpieces, at the same time, the nitride inclusion in the material intensifying the breaking open too.

关 键 词：42CrMo 曲轴 镦锻 裂纹 

分 类 号：TG316.11[金属学及工艺—金属压力加工]