穿孔等离子弧焊接弧与熔池的耦合模拟及正交分析*
吴宣楠1,冯妍卉1,2(
),李岩1,李亚飞1,张欣欣1,2,武传松3
),李岩1,李亚飞1,张欣欣1,2,武传松3
NUMERICAL SIMULATION AND ORTHOGONAL ANALYSIS ON COUPLED ARC WITH MOLTEN POOL FOR KEYHOLING PLASMA ARC WELDING
Xuannan WU1,Yanhui FENG1,2(),Yan LI1,Yafei LI1,Xinxin ZHANG1,2,Chuansong WU3
),Yan LI1,Yafei LI1,Xinxin ZHANG1,2,Chuansong WU3
图9. 焊接熔池横断面实验与计算结果对比图
Fig.9. Comparison of weld bead cross-section between experimental image (left) and calculated result (right) (The workpiece is stainless steel 304 and its thickness is 6 mm; the welding current is 169 A; the arc voltage is 24 V; the working gas flow rate is 3 L/min; the shielding gas flow rate is 30 L/min; the gap between two electrodes is 5 mm; the electrode shrinkage is 2 mm; the nozzle diameter is 2.8 mm)
