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拉深用润滑剂在使用中的摩擦特性与拉深工艺之间的关系目前研究的还比较少,本文针对这一内容进行研究.实验采用拉深工艺模拟试验机作为实验手段,研究油基和水基润滑剂在给定不同压边力值条件下的润滑性能、以及坯料直径变化对润滑性能的影响.实验结果表明:(1)在拉深过程中,水基润滑剂存在一个最佳压边力范围,在这一范围内水基润滑剂具有比油基润滑剂摩擦系数小、拉深性能好的特点.当超过这一范围时,摩擦系数明显增大,拉深性能变差.(2)油基润滑剂基本不受压边力的影响.(3)拉深坯料直径的变化对油基和水基润滑剂的摩擦性能都基本无关系.(4)建立了水基润滑剂的摩擦系数与拉深压边力之间关系的实验方程.
The relationship between the friction characteristics and the drawing process of the deep drawing lubricant in use is still relatively little at present, and the research in this paper is carried out in this paper.Drawing process simulation testing machine is used as the experimental method to study the relationship between the oil-based and The results show that: (1) There is an optimum pressure of water-based lubricant in the process of drawing, and the lubrication performance of water-based lubricant under different conditions of blank holder force and the variation of billet diameter on the lubrication performance. In this range, the water-based lubricant has a smaller friction coefficient and a better drawability than the oil-based lubricant, and when it exceeds this range, the friction coefficient increases significantly and the drawability deteriorates. 2) The oil-based lubricant is not affected by the blank holder force. (3) The change of the diameter of the billet is basically irrelevant to the friction performance of the oil-based and water-based lubricant. (4) The experimental equation of the relationship between the friction coefficient and the blank holder force.