论文部分内容阅读
对于长轴类锻件,进行工艺设计选择模锻工步时,一般均按布留哈诺夫等所著“模锻及模具设计”上所介绍的办法。首先做计算毛坯图,确定原材料规格,然后选定制坯型槽的种类—拔长、滚压等。其原则是使金属在制坯型槽中分配好,而在模锻型槽内,金属不再沿长度方向流动,仅只做上下及横向流动,亦即是认为模锻型槽没有分配金属的能力——主要是积聚金属的能力。长期来,大家都按这一原则选取模锻工步
For the long axis of forgings, the process design choice forging step, generally according to the cloth left Hanov et al. “Die forging and mold design” on the method described. First calculate the rough drawing, determine the raw material specifications, and then select the type of blank-type slot - pull, rolling and so on. The principle is to make the metal distribution in the preform groove, and in the die forging groove, the metal does not flow along the length direction, only up and down and the lateral flow, that is, forging groove is not the ability to allocate metal - Mainly the ability to accumulate metal. For a long time, everyone selected the forging step according to this principle