板材弯曲回弹的研究

摘要

The plank often exist in the elastic deformation and residual stress, after forming external force is removed, plank appear rebound, and can make the parts failure.%板材中常常存在着弹性变形和残余应力，在弯曲成形撤掉外力后，板材会出现回弹，并会使零件失效。