摘要
采用由PAW(等离子弧)+TIG(钨极电弧)构成的单电源双面电弧焊接(DSAW)工艺可以获得深宽比较大的焊缝,该工艺具有高效、低成本的优点。分析了单电源双面电弧焊接的基本原理,并采用数值模拟技术定量分析了双面电弧焊接条件下的温度场;同时作为对比也模拟了PAW焊接的传热现象,揭示了DSAW大幅度增加熔深的机理,为工艺参数优化设计提供了依据。
Comparatively deep and narrow welds can be attained in double-sided arc welding(DSAW)with single power supply consisting of PAW(plasma -arc)and TIG(tungsten-arc).PAW+TIG double-sided arc welding is an advanced manufacturing technology with the performance of high efficiency and low cost.The basic principle of DSAW of single power supply was analyzed.Meanwhile,as the comparison,the phenomenon of heat transfer in PAW was also simulated.Consequently,the principles of greatly deepening weldpool are disclosed and bases for designing and optimizing the welding process parameters are provided.
出处
《焊接技术》
2004年第3期14-16,1,共3页
Welding Technology
基金
山东省中青年科学家奖励基金
