利用ZL-2型超强脉冲放电装置对带有直裂纹的构件进行电磁热止裂,然后利用激光熔覆技术对止裂后的构件进行修复。对止裂前后裂尖处微观组织进行金相组织对比分析,对经过激光熔覆前后试件进行耐磨性能对比,发现熔覆后的试件耐磨性能得到显著提高,最后对修复前后的试件进行力学性能对比,结果表明:放电止裂与激光再制造的试件力学性能得到显著提高,实现了再制造的目的。 ZL-2 type super impulse discharge device is used to crack the component with the straight crack electromagnetically and the laser cladding technology is used to repair the cracked component. The microstructure of the cracked tip before and after the crack was compared with the microstructure. The wear resistance of the sample before and after the laser cladding was compared. The wear resistance of the sample after the cladding was significantly improved. Finally, The results show that the mechanical properties of the specimens treated with discharge arrest and laser remanufacturing are significantly improved, and the purpose of remanufacturing is achieved.