摘要
热作模具钢因承受较大的冲击力且反复加热和冷却,容易产生表面裂纹。本实验利用电磁热效应理论,采用脉冲放电使裂纹尖端钝化形成焊口而止裂。继而采用激光熔覆修复方法填平裂纹,最终达到热作模具钢止裂并修复的目的。
The hot die steel contacted is easy to produce surface cracks with higher impact and repeated heating and cooling process.By use of electromagnetic heating effect theory,the impulse discharging mode has been adopted to passivate the crack tips into welded joints to stop the cracking.Then laser cladding repair method has been taken to fill the cracking.Finally the hot die steel has been arrested and repaired.
出处
《锻压装备与制造技术》
2012年第2期70-73,共4页
China Metalforming Equipment & Manufacturing Technology
关键词
机械制造
电磁止裂
激光熔覆
脉冲放电
Electromagnetic anti-crack
Laser cladding
Impulse discharging
