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众所周知,冲模的使用寿命在很大程度上取决于导柱和导套的制作方法和结构。但导套的制作工艺很复杂,劳动量很大,因为它的尺寸精度,表面粗糙度表面硬度都应达到相当的程度。为此,一般的工艺过程是采用20钢,车有余量的孔;渗碳和淬火、回火;磨孔,留出最小余量;进行最后精加工,以达到要求。许多专家对导套的工艺方案进行了新的探索。如磨孔改在液压机上用整光推刀进行推孔,而渗碳和淬火回火可用渗硼代替。
As we all know, the life of the die depends largely on the guide column and guide the production of the method and structure. However, the production process of the guide sleeve is complicated and requires a lot of labor because of its dimensional accuracy and the surface hardness of the surface roughness should reach a considerable extent. To this end, the general process is the use of 20 steel, the car has surplus hole; carburizing and quenching and tempering; grinding hole, leaving the minimum margin; final finishing to meet the requirements. Many experts have made new exploration of the guide sleeve process scheme. Such as grinding holes in the hydraulic press with a light push push the hole, and carburizing and quenching and tempering can be used instead of boronizing.