摘要
针对Cr12MoV钢模块线切割时产生的开裂失效进行了分析。结果发现:模块硬度过高、碳化物粗大、热处理工艺不当是造成模块线切割过程中开裂的主要原因,进而提出了一系列改进措施,特别是线切割后的补充回火对防止模具变形开裂效果显著。
The failure analysis of Cr12MoV steel mould-cavity in wire electrical discharge machining（WEDM） was done. The results show that excessive hardness, thick carbide and improper heat treatment process are the main reasons that result in the fracture in WEDM. The improved measurements are proposed, Especially the results are significant to prevent mold from distortion and cracking by adding tempering after WEDM.
出处
《热加工工艺》
CSCD
北大核心
2009年第4期145-146,149,共3页
Hot Working Technology
关键词
线切割
模具
变形开裂
热处理工艺
WEDM
mold
distortion and cracking
heat treatment process
