摘要
通过对5CrNiMo、5CrNi2Mo锻模修复后采用460℃×5h二次回火处理,减少了裂纹萌生与扩展程度,提高了锤锻模的使用寿命。
Forging die after it is repaired is secondary tempered at 460℃x5h,which reduces cracking and crack spreading and raises its service life.
出处
《机械管理开发》
2004年第3期52-53,共2页
Mechanical Management and Development
关键词
应力
回火
模具寿命
裂纹
Stress Tempering Service life of die Crack
