摘要
对42CrMo大型轴加工表面缺陷进行焊接修补,选用型号ER55-G的1.2 mm JM-68实心焊丝,工件焊前预热温度为350℃,层间温度控制在400℃以内,焊接线能量在1 KJ/mm以内,焊后进行620℃去应力退火处理,修补后的工件表面无缺陷并满足荷载要求。
Diameter 1.2 mm JM-68 solid welding wire of ER55-G is selected to repair surface defect of 42CrMo large shaft machining.The preheating temperature of workpiece before welding is 350℃,temperature between layers is controlled within 400℃,welding line energy is within 1 KJ/mm,stress relief annealing with holding temperature of 620℃is adopted,the repaired workpiece surface has no defects and meets load requirements after repairing.
作者
杨永强
欧阳建国
董立峰
李川
郑春雷
Yang Yongqiang;Ouyang Jianguo;Dong Lifeng;Li Chuan;Zheng Chunlei(Juli Sling Co.,Ltd.,Hebei Province Sling Engineering Technology Research Center,Baoding 072550,China;Yanshan University,College of Material Science and Engineering,Qinhuangdao 066004,China;CITIC Dicastal Co.,Ltd.,Qinhuangdao 066011,China)
出处
《金属制品》
CAS
2021年第6期59-60,64,共3页
Metal Products
基金
国家重点计划(2017YFB0304501)。
