CAJ | 학술논문

采用激光光内送丝法并利用多道搭接熔覆技术,对20钢砂光机轧辊的凹坑缺陷进行修复,结果表明,修复后的轧辊其几何尺寸复原,添加材料的组织性能优于基体,二者的界面达到了良好的冶金结合,修复层与凹坑周围基体的残余应力很小,无几何变形.
채용격광광내송사법병이용다도탑접용복기술,대20강사광궤알곤적요갱결함진행수복,결과표명,수복후적알곤기궤하척촌복원,첨가재료적조직성능우우기체,이자적계면체도료량호적야금결합,수복층여요갱주위기체적잔여응력흔소,무궤하변형.
The surface dents of rolls made with 20 steel was modified by multi-track overlapping with laser cladding feeding power coaxially from the intern hollow space.The results show that,after repairings the shape of roller is resumed,the microstructure and properties of the added material are better than the base and metallurgical bond is obtained in the interface.The residual stress is very small and with little deformation around the surface dents.