薄壁网孔工件在数控冲床加工中的变形分析

为了避免数控转塔冲床加工薄壁网孔工件时的表面翘曲变形,实验中从控制加工网孔工件的平整度、增大板料压紧力和选择合适冲切方向与顺序3个方面来减小薄壁网孔工件的变形量．结果表明,1m×2m以上的产品,通过以上方法,变形量由原来的4～5mm成功地控制到1mm的范围内,能让数控机床正常工作,达到产品质量要求．

Deformation analysis of thin mesh workpiece in CNC punch process

To avoid the surface buckling deformation of thin mesh workpiece in CNC turret punch press, experiments from the control of flatness, increasing the tight force of mesh sheet detain and choosing a suitable cutting direction and order are performed to reduce the machining. The results show that the original deformation of 1 m× 2 m of a- bove products, through the above methods, is successfully controlled from 4-5 mm to 1 mm range. In the machi- ning process, CNC machine can work properly, and the product quality is ensured.