【摘要】：文中系統(tǒng)開展了Q235薄鋼板單絲MAG,雙絲MAG以及TIG-MAG復(fù)合等電弧搭接焊工藝研究,對(duì)上述焊接方法的焊接接頭成形、微觀組織、拉伸性能以及焊接熔化效率進(jìn)行了對(duì)比分析。研究結(jié)果表明,在本試驗(yàn)條件下,單絲MAG焊接速度可達(dá)到0.9 m/min,焊接飛濺較少;雙絲MAG焊速度可達(dá)到1.8 m/min,焊接飛濺多于單絲MAG焊;TIG-MAG復(fù)合焊接速度可提高到2.4 m/min,焊接飛濺最少。通過計(jì)算表明,與單絲MAG焊和雙絲MAG焊相比,TIG-MAG復(fù)合搭接焊方法具有顯著的低焊接熱輸入和高熔化效率特征。
[Abstract]:In this paper, the arc lap welding process of Q235 thin steel plate monofilament MAG, double wire MAG and TIG-MAG composite is studied systematically, and the welding joint forming, microstructure, tensile properties and welding melting efficiency of the above welding methods are compared and analyzed. The results show that under the experimental conditions, the welding speed of single wire MAG can reach 0.9m 鈮，

本文編號(hào)：2526742