Research on welding deformation control of the large aluminum alloy framework
Taking large aluminum alloy framework as the product object,whose welding deformation was stud-ied.Welding deformation of the aluminum alloy framework can be controlled by methods of the formulation of appropriate welding scheme,deformation control of framework assembly welding,reservation of welding allow-ance and process control of post-welding heat treatment.After welding,the results show that the deviation be-tween the spacing size of the beam component and the theoretical size is-1～+1 mm,the deviation between the length size of the framework and the theoretical size is+2 mm,the flatness of the outer skin is controlled within 3 mm,and the flatness of the bottom surface of the framework is no more than 4 mm.all dimensions of the framework meet the design requirements.
万方数据
