低合金高强钢无预热或低温预热激光-电弧复合热源焊接技术

Laser-arc Hybrid Welding Technology for Low-alloy High Strength Steel with Low Temperature Preheating or without Preheating

介绍了低合金高强钢无预热或低温预热激光-电弧复合热源焊接工艺,对比研究了激光-MAG复合热源及常规MAG两种焊接工艺方法焊接低合金高强钢的冷裂纹敏感性及接头的力学性能。

Laser-arc hybrid welding technology for low-alloy high strength steel with low temperature preheating or non-preheating was introduced. Compared the welding process between laser-MAG hybrid welding and MAG welding, the cold crack-sensitivity and mechanical properties of the low-alloy high strength steel welded joints were investigated.