激光熔覆技术在减速器轴表面再制造中的应用

Application of Laser Cladding Technology in Remanufacturing of Reducer Shaft Surface

针对减速器轴表面的磨损失效,为解决检修过程中表面磨损严重难以维修的问题,采用激光熔覆技术对磨损的减速器轴表面进行再制造,研究了激光熔覆对减速器轴表面金相显微组织、硬度、耐磨性、耐腐蚀性的影响。结果表明:磨损的减速器轴经激光熔覆再制造后,表面熔覆层组织细小致密,熔覆层性能明显提升,耐磨性、耐蚀性分别约为减速器轴基材的2.5倍、2倍,激光熔覆技术在减速器轴再制造中具有广阔的应用前景。

In order to solve the problem of serious surface wear and difficulty in repairing during the maintenance process aiming the wear failure of the reducer shaft surface, laser cladding technology was used to remanufacture the worn reducer shaft surface. The effect of laser cladding on the metallographic microstructure, hardness, wear resistance and corrosion resistance of the reducer shaft surface was studied. The research results show that after the reducer shaft is remanufactured by laser cladding, the surface cladding layer has a fine and dense structure, and the properties of the cladding layer are significantly improved. The wear resistance and corrosion resistance are about 2.5 times and 2 times that of the reducer shaft base material, respectively. The laser cladding technology has broad application prospects in the remanufacturing of the reducer shaft.