The temperature variation of A356 aluminum alloy after heat treatment and the magnitude and distribution of residual stress were studied based on Abaqus finite element analysis software.And the tensile simulation of A356 aluminum alloy was carried out,and the tensile simulation results were compared with the actual tensile test results.The results show that the solution treatment can effectively eliminate the residual stress on the surface of the material,especially the residual stress at the edge of the alloy.The residual stress of the alloy becomes larger after quenching.After aging treatment,the residual stress on the alloy surface is obviously reduced,which can effectively avoid cracks.When the solid solution temperature is 555℃,the residual stress is the smallest,about 77 MPa.At this time,the tensile strength of A356 aluminum alloy is the largest,about 300 MPa,which are in accordance with the results of tensile test.By using finite element analysis software,the heat treatment of A356 aluminum alloy is simulated and analyzed,the optimum solution temperature is verified,the minimum residual stress is calculated,and the tensile strength is predicted,which can provide a certain reference for the application of engineering.
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