引言我厂压制硬质合金半成品用的圆钢模冲头(如图1),约有200多种。其尺寸变化范围大致是:外圆直径D约为10～110毫米,内孔直径d约为1～50毫米,滑动面长度K_2约为10～20毫米,总长H_1约为36～150毫米。在工作中,根据圆钢模大小的不同,冲头承受的压力一般从3吨至100吨。这类冲头共同的特点是在外圆上有一个45°的高2～3毫米的锐角圆周,在内孔边缘上,有一个2～8毫米高的30°或45°的锐角圆周(一般30°的居多)。用以制造这类冲头的材料是T10钢,要求淬火——回火后的硬度为 Introduction I plant pressed carbide semi-finished products used round steel punch (Figure 1), about 200 kinds. Its size range is roughly: the outer diameter D is about 10 ~ 110 mm, the inner diameter d is about 1 ~ 50 mm, the sliding surface length K_2 is about 10 ~ 20 mm, the total length H_1 is about 36 ~ 150 mm. In the work, according to the different size of the round die, the punch to withstand the pressure from 3 tons to 100 tons. The common feature of this type of punch is that it has a 45 °, acute 2 to 3 mm acute circumference on the outer circumference and an acute 2 to 8 mm height 30 ° or 45 ° circumference on the edge of the hole (typically 30 ° mostly). The material used to make these punches is T10 steel, which requires a hardened-tempered finish