In order to solve the problems of large residual thermal stress and deformation of SLM parts affected by the SLM forming mechanism and avoid parts manufacturing failure,taking the 316L stainless Steel hollow blade prepared by SLM as the research object,proposes a deformation compensation method based on the voxel simulation model,and carries out the residual stress and deformation simulation by inherent strain method and verification by experiments.The simulation results show that the residual thermal stress and thermal deformation in the 316L hollow blade prepared by SLM are relatively large,with a maximum of 370 MPa and 0.2 mm respectively.The experimental results show that the deformation compensation method can significantly reduce the deformation of the hollow blade.And compared with the original model,the overall deviation of the blade surface,after deformation compensation,decreases from 0.12 mm to 0.05 mm within.
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