高功率CO_2激光深穿透焊接的研究  

Study on laser deep penetration welding of metallic materials

作　　者：郑启光[1] 陶星芝[1] 杨杨[1] 李家熔[1] 王汉生[1] 李再光[1] 王朝诚 孙树元 高小春 张显林 王富林 

机构地区：[1]华中理工大学激光所,430074 [2]第一汽车厂,130011

出　　处：《中国激光》1991年第2期122-127,共6页Chinese Journal of Lasers

摘　　要：本文采用3～5kW(低阶模3～4kW)高功率CO_2激光束对18CrMnTi低合金钢进行了深穿透焊接的研究,焊缝深宽比接近2,焊接穿透深度达到5.5mm以上,对影响激光深穿透焊接效果的各种焊接工艺参数进行了研究。找到克服激光焊缝区缺陷的一些有效措施。Experimental results on the welding of low alloying steel (18CrMnTi) and 45 steel with 3-5kW CO2 laser are discussed. The depth/width ratio being about 2, the maxium penetration depth is about 5.5mm. Various technological parameters influencing the effect of laser deep penetration are studied and some effective measures for overcoming the defect (crack, gas hole) of aser deep penetration welding have been found.

关 键 词：激光 穿透焊接 合金钢 焊接 

分 类 号：TG456.7[金属学及工艺—焊接]