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摆动辗压过程中,工件作用在模具上力参数的大小,随着工艺参数,如工件的初始高径比,每转进给量、润滑状态的不同而异.为深入研究摆辗变形的规律,就须对该力参数的变化进行测量.本文主要叙述了其测量原理,并设计了实验装置,对摆辗过程中的工件与模具间的摩擦系数进行了初步测量,结果表明,对圆柱形铅试件摆辗变形,采用机油润滑时摩擦系数约为0.084;采用硅油石墨润滑时.摩擦系数约为0.031;无润滑剂时,摩擦系数约为0.355～0.397.
Swing rolling process, the role of the workpiece in the mold on the force parameters of the size, with the process parameters, such as the initial height-diameter ratio of the workpiece, the feed per revolution, lubrication state of different.In order to study the law of swinging deformation , It is necessary to measure the change of the force parameters.This paper describes the measurement principle, and the experimental device is designed, the friction coefficient between the workpiece and the mold in the process of the initial measurement, the results show that the cylindrical Lead specimen swinging deformation, the friction coefficient of oil lubrication is about 0.084; when using silicon oil graphite lubrication, the friction coefficient is about 0.031; without lubricant, the friction coefficient is about 0.355 ~ 0.397.