钛合金带热沉钨极氩弧焊中热沉作用——采用数值模拟和实验相结合的方法研究了钛合金TC4薄板常规及带热沉的钨极氩弧焊焊接过程中温度及应力应变的分布,考察了热沉对温度场和应力应变场的影响规律,探讨了使用该技术实现应力和变形控制的机理。结果表明:带热沉...
Building i ndustry ope ns up new worl d of e ntrepre neurial struggle to build a t hree provinces of regional ce ntral cities --in the Comm unist x counties t he six plenary sessi on mem bers a nd comrade s: today, I was commissi one d by t he County party Committee Standi ng Committee, re ports t o the General Assembl y. Considerati on of all members a nd alter nates, a nd comrade s attending dv