轴类零件淬火后开裂分析  

Shaft Quenching Crack Analysis

作　　者：何海军 HE Haijun(Jiangsu OCPT Institute Co.,Ltd.,Changzhou 213300)

机构地区：[1]江苏广义牵引技术研究所有限公司,常州213300

出　　处：《现代制造技术与装备》2021年第5期175-178,共4页Modern Manufacturing Technology and Equipment

摘　　要：统计数据显示,12 796根轴在淬火后发现了29根轴存在裂纹,裂纹发生率为0.227%。经过仔细梳理轴类零件热处理及热处理前的生产工序,运用FMEA及数理统计分析方法,确定并实施了9个改善点,使后续11 450根轴淬火后无裂纹。29 shafts occurred crack,during finishing the quenching of 12796 shafts;the statistic crack rate is 0.227%.Detailed processes of heat treatment and the detailed processes before heat treatment were analyzed by FMEA and mathematical statistics method,9 improvements,were identified and finished,resulted that further 11450 shafts were free of cracks after quenching.

关 键 词：轴 淬火 裂纹过程 失效分析 

分 类 号：TH133.2[机械工程—机械制造及自动化] TG115[金属学及工艺—物理冶金]