在薄板类弯曲件生产中,大圆弧弯曲件的回弹使零件的弯曲精度下降,严重的还将影响零件的装配尺寸,或者使零件装配后长期处于不良应力状态,引起零件在使用过程中过早的损坏。 实际生产中影响大圆弧弯曲件精度的因素很多,如模具、材料的机械性能、弯曲工 In the production of sheet metal bending parts, the rebound of the large arc bending parts causes the bending precision of the parts to drop, seriously affecting the assembly size of the parts or long-term adverse stress state after the parts are assembled, causing the parts to be in use Premature damage. The actual production of large circular arc bending precision of many factors, such as mold, the mechanical properties of materials, bending workers