在金属板上制孔并翻边,一般用两道工序实现:在一套模具上冲孔,在另一套模具上翻边。近来出现了在一套模具上进行冲孔翻边的复合方法。曾在厚度δ=0.5～2毫米的10钢、63M和A1M铝合金方板上进行试验,获得的孔直径达64毫米。翻边时的单边间隙S=1～1.05δ。当翻边孔径小于16毫米时,翻边冲头的圆角半径R_n=0.5(d_o-d_n),d_o—翻边冲头直径,d_n—冲孔冲头直径,凹摸圆角半径R_M= Hole in the metal plate and flanging, the general use of two processes to achieve: punching a set of molds, flanging the other set of molds. Recently, a composite method of punching and burring on a set of molds has emerged. Experiments were performed on 10, 63M and A1M aluminum alloy plates with a thickness of δ = 0.5 to 2 mm and a hole diameter of 64 mm was obtained. Flanging unilateral clearance S = 1 ~ 1.05 δ. When the flange diameter is less than 16 mm, the turning radius Rn = 0.5 (d_o-d_n), d_o- flanging punch diameter, d_n-punching punch diameter, concave radius R_M =