中厚板双面脉冲埋弧焊工艺分析及优化  

Technology analysis and optimization for double-sided pulsed submerged arc welding in the medium plate steel

作　　者：周方明[1] 王伟建[1] 吴兴祥 朱正祥 

机构地区：[1]江苏科技大学江苏省先进焊接技术重点实验室,江苏镇江212003 [2]上海沪临重工有限公司,上海201306

出　　处：《江苏科技大学学报（自然科学版）》2015年第6期521-524,共4页Journal of Jiangsu University of Science and Technology:Natural Science Edition

基　　金：产学研合作计划基金资助项目(沪经信法(2013)353号);研究生科研创新计划基金资助项目(SJLX-0489)

摘　　要：以T型接头为研究对象,着重对T型接头中咬边及未熔透现象进行研究,并运用正交试验法,对脉冲埋弧焊中脉冲频率、占空比、基值/峰值电流的影响因子进行优化设计,采用宏观金相得到焊缝几何参数,以熔深为评价指标,得到最佳影响因子.结果表明:基于正交试验设计的脉冲埋弧焊工艺能够很好地解决T型接头中的咬边及清根问题,且节省了时间,提高了效率.The phenomenon of the undercut and incomplete penetration of the T-joint was studied in this paper.And by means of orthogonal experiment method,we optimize the main factors such as the pulse frequency,duty cycle,the base value / peak current in pulsed submerged arc welding. The weld geometry parameters were obtained by the macroscopic metallography and the best impact factor was achieved by taking the penetration as the evaluation index. The results showed that the pulsed submerged arc welding process based on orthogonal experimental design can well solve the problem of the undercut and gouging in T-joints and improve the welding quality.

关 键 词：正交试验设计 脉冲埋弧焊 T型接头 双面焊 焊接工艺 

分 类 号：TG445[金属学及工艺—焊接]