铝合金模板焊接变形数值模拟  

Numerical simulation of welding deformation of aluminum template

作　　者：方平[1] 侯越锋 帅歌旺[1] 

机构地区：[1]南昌航空大学,江西南昌330063

出　　处：《电焊机》2015年第8期60-64,共5页Electric Welding Machine

摘　　要：基于有限元软件SYSWELD,数值模拟铝合金模板结构在不同焊接顺序下的焊接变形,通过对焊接热源、温度场和焊后变形的模拟与试验,验证了模型的可靠性。分析了不同焊接顺序对铝模板结构焊接变形量的影响规律,研究表明,构件在厚度方向(z向)均产生正V形的角变形,由外侧向中心对称焊接的焊后变形量最小,x、z方向最大变形量分别为0.238 mm和1.270 mm。Based on the finite element software SYSWELD,welding deformation of aluminum template structure under different welding sequence is simulated by welding heat,temperature and deformation after welding simulation and test,to verify the reliability of the model. The influence of different welding sequences on welding deformation of the aluminum template structure is analyzed,the study shows that component in the thickness direction（z direction）has a positive angle V-shaped deformation,the postwelding deformation of symmetrical welding from the outside to the center of template structure is the smallest,the maximum deformation of x and z directions is respectively 0.238 mm and 1.270 mm.

关 键 词：铝合金模板 SYSWELD 焊接变形 焊接顺序 

分 类 号：TG404[金属学及工艺—焊接]