Aim at 7075 aluminium alloy vacuum electronic beam welding, using nonlinear finite element, the numerical simulation of the residual stresses distribution in welding joint was made.

• 针对7075铝合金中厚板真空电子束焊接过程,采用非线性有限元法,对焊接接头的残余应力分布进行了数值模拟。