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斜刃冲裁可使冲裁力及冲裁噪声降低,但会造成工件的翘曲。如何合理地选择斜刃的角度,目前国内外还无确切的报导。笔者为了揭示料厚、斜刃角度对冲裁力和噪声的影响,以及与工件翘曲度的关系,进行了一系列的试验研究,在计算机上用回归方法得出了斜刃冲裁的冲裁力、冲裁噪声及工件翘曲度的三个经验公式,以便作为选择适宜的斜刃角度的参考。
Bevel edge blanking can reduce the punching force and punching noise, but will cause the workpiece to warp. How to choose the angle of the inclined edge reasonably, there is no exact report at home and abroad at present. In order to reveal the influence of material thickness, oblique angle on the cutting force and noise, as well as the relationship with the warpage degree of the workpiece, a series of experimental studies have been carried out. On the computer, the blanking Force, blanking noise and workpiece warp three empirical formula, in order to select the appropriate angle of the oblique edge of the reference.