钛合金激光-电弧复合热源焊接工艺  

Laser-arc hybrid welding technology of titanium alloy

作　　者：依龙 杨磊[1] 刘黎明[2] 宋刚[2] 

机构地区：[1]沈阳飞机工业(集团)有限公司,110850 [2]大连理工大学,116024

出　　处：《焊接》2011年第2期48-51,72,共4页Welding & Joining

摘　　要：对钛合金厚板进行激光-电弧复合焊接,并对焊接接头能进行试验研究,结果表明,激光-电弧复合热源焊接新工艺实现了对钛合金厚板的优质高效连接,焊接接头的抗拉强度平均在950 MPa以上,达到母材强度的95%以上;平均冲击强度高于567.3 kJ/m^2;疲劳强度在600 MPa水平可达0.7～1万次,550 MPa水平可达3～6万次,500MPa水平可达7～12万次。Laser-arc hybrid welding was used to join thick titanium plate,and the welded joint were tested.The result showed that laser-arc hybrid welding technology realizes the high efficient and quality welding of thick titanium plate.The tensile strength of the welded joint is above 950 MPa,which is over 95% of the base metal.The average impact strength was higher than 567.3 kJ/m^2.The fatigue strength reaches 7-10 thousands at 600 MPa stress intensity,30-60 thousands at 550 MPa,and 70-120 thousands at 500 MPa.

关 键 词：钛合金 激光-电弧复合热源焊接 焊接工艺 力学性能 

分 类 号：TG456.7[金属学及工艺—焊接]