盒形件成形工艺分析

Forming of the Rectangular Box

目的分析盒形件的成形规律,解决盒形件的成形问题。方法对毛坯展开料、拉伸次数、压边圈的选用、模具等几个主要参数及拉伸零件所需的冲床规格进行计算,制订加工工艺方案。分析零件在拉伸过程中有可能出现的皱痕、划痕、拉断等问题,从而采取合适的润滑剂。结果以典型盒形件为例,进行试加工,零件尺寸100%合格,零件表面质量良好。结论通过工艺参数计算原则及润滑剂的选用,能够保证盒形件的尺寸精度、表面质量,提高生产效率。该方法对类似零件的工艺计算和分析有一定的参考价值。

This work aims to analyze the forming law of box parts and solve the problem of box forming. Major parameters like blank unfolding material, number of drawing, selection of blank holder and die and the specifications of punch required by drawing process were calculated to formulate a machining process plan. Problems like crinkle, scratch and breakage in drawing were analyzed so that proper lubricant could be adopted. With a typical box as an example, the trial processing was carried out. Part size was 100% qualified and part surface had good quality. In conclusion, the calculation principles of technological parameters and the selection of lubricant can guarantee the dimension precision and surface quality of box parts and improve production efficiency. This method has certain reference value for the calculation and analysis of the technology of similar parts.