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两斜刃凸模(或凹模)有图1a、b、c三种形式。祖巴卓夫在《冷压技术》一书中,给出了三种形式的冲裁力计算公式:
Two oblique punch (or die) Figure 1a, b, c three forms. Zubachuofu in “cold technology” book, gives three forms of punching force calculation formula: