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对于复杂型面冲压零件的回弹控制,工程应用中需进行大量修模,效率不高。在“基于补偿因子的复杂型面零件冲压回弹控制研究与应用(第Ⅰ部分:理论)”的基础上,提出一种基于补偿因子的模面修正方法。该方法从补偿因子和复杂型面冲压零件回弹的特点出发,在零件型面中将回弹分成不同的区域,提取特征截面,在截面的不同区域根据其成形的弯曲半径、角度等参数实施不同的补偿因子,并将补偿后的截面数据进行曲面重构,生成修模面。螺旋叶片的修模结果表明,补偿因子是一种有效的回弹控制方法,能够提高复杂型面冲压零件的回弹修模效率。
For the springback control of complex profile stamping parts, a large number of mold repairs are needed in engineering applications, which are inefficient. Based on the research and application of stamping rebound control of complex profile parts based on compensation factor (Part Ⅰ: Theory), a new method of surface modification based on compensation factor is proposed. Based on the compensation factor and the springback characteristics of the complex profile stamping parts, the method divides the springback into different regions in the part profile, extracts the characteristic cross-section and implements the parameters according to the bending radius and angle formed in different sections of the cross-section Different compensation factors, and the compensated cross-sectional surface reconstruction data to generate repair surface. The results of modeling the helical blade show that the compensation factor is an effective rebound control method, which can improve the rebound modulo efficiency of the complex profile stamping parts.