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    • 8. 发明授权
    • Method for modifying a stamping die to compensate for springback
    • 修正冲压模以补偿回弹的方法
    • US07117065B1
    • 2006-10-03
    • US11278327
    • 2006-03-31
    • Zhiyong Cedric XiaFeng Ren
    • Zhiyong Cedric XiaFeng Ren
    • G06F19/00G05B11/01G06G7/48
    • G05B19/40937G05B2219/36268G05B2219/37403G05B2219/45204Y02P90/265
    • A method for modifying a stamping die to compensate for springback includes the steps of stamping a first part using a base, or pre-existing die set, and creating a surrogate die having the shape of the first stamped part. These steps are followed by simulated stamping of a blank with the surrogate die, where the blank is shaped according to the desired finished part. Then, the base die is modified by mapping the forming stresses, from the stamped blank, to an indicator blank, which is allowed to relax and then is employed as a template for modification of the base die. Following this, the accuracy of the newly modified base die is determined by stamping a second part in the modified base die and by comparing a number of dimensions of the second part with a number of corresponding dimensions of the desired finished part.
    • 用于修改冲压模以补偿回弹的方法包括以下步骤:使用基底或预先存在的模具冲压第一部件,并且创建具有第一冲压部件形状的代用模具。 这些步骤之后是用替代模具模拟冲压坯料,其中坯料根据所需的最终部件成型。 然后,通过将来自冲压坯料的成形应力映射到允许松弛的指示器坯料,然后用作模具来修改基模,来修改基模。 之后,通过在修改的基座模具中冲压第二部分并且通过将第二部分的多个尺寸与期望的成品部件的相应尺寸的数量进行比较来确定新修改的基底模具的精度。