切边模七因素的主从关系

• 作 者: 赵明钟
• 出 处: 锻压机械
• 发表日期: 1983年06期
• 关键词: 切边模 锻件 模线 模具材料 凹模 模具 影响因素 最小厚度 谓之 间隙

设计切边模时,锻件的“有效高度”是一个起决定性作用的影响因素。它的大小决定了模具间隙的大小、模具材料的选用及其热处理的取舍、要不要退料装置和定位台阶以及锻件切边质量的好坏等。以上就是锤锻件切边模的七个影响因素,其中,“有效高度”是起主导作用的因素。由图1所示,锻件分模线以上的锻件最小厚度h_1,谓之锻件的上剪切高度;锻件分模线以下的锻件最小厚度h_2,谓之锻件的下剪切高度。上、下剪切高度之和H,称为锻件的有效高度(有效剪切高度)。

When designing the trimming die, the “effective height” of forgings is a decisive factor. Its size determines the size of the mold gap, the choice of mold materials and heat treatment of trade-offs, or not to return the device to locate the steps and the forging trimming quality is good or bad. The above is the hammer forging trimming die seven influencing factors, of which, “effective height” is to play a leading role in the factor. As shown in Fig. 1, the minimum thickness of the forgings above the parting line of the forging h_1 is the upper shearing height of the forging; the minimum thickness of the forging below the forging line h_2 is the lower shearing height of the forging. The sum of the upper and lower shear heights, H, is called the effective height of the forging (effective shear height).