Technology method for net hole deformation technology compensation during incremental forming

The invention discloses a technology method for net hole deformation technology compensation during incremental forming, and belongs to the field of sheet numerical control incremental forming. The technology method comprises the following steps that a net hole deformation prediction model is established according to the incremental forming main direction of a net hole plate workpiece, the machining track, net hole plate forming force and sheet forming main stress epsilon m; and according to the net hole deformation prediction model, a workpiece initial net hole is designed. The technology method for net hole deformation technology compensation during incremental forming is provided, and the net hole shape and the size after workpiece forming can meet the workpiece usage requirement. 本发明公开了一种渐进成形中网孔变形工艺补偿的工艺方法，属于板料数控渐进成形领域，包括以下步骤：根据网孔板工件的渐进成形主方向、加工轨迹、网孔板成形力和板料成形的主应变ε，建立网孔变形量预测模型；根据网孔变形量预测模型，设计工件初始网孔。本发明是提供一种渐进成形中网孔变形工艺补偿的工艺方法，可使工件在成形后的网孔形状以及尺寸符合工件使用要求。