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用冲裁凸模和冲裁凹模对板料进行普通的落料和冲孔时,在落料和冲孔工件的冲切面上总是产生毛刺(图1)。毛刺的高度主要受工
With blanking punch and blanking die for sheet blanking and punching, burrs are always generated on blanking surfaces of blanked and punched parts (Figure 1). Burr height mainly by workers