تخمين ضريب اصطكاك برخي روانكارها توسط آزمايش حلقه

Estimate Friction Coefficient of Some Lubricants with Ring Test

One of the most important parameter on the forging process, is friction between Surfaces. It is some times useful and some times harmful. Most common and best friction and wear control procedure is regular lubrication. Lubricant evaluation has important role in forging process. Because lubrication is cheap and easy during manufacturing. Ring test is one of the best procedures for lubricant evaluation. In this research the effect of some lubricants such as grease and Antimony oxide on the reduction of friction coefficient between part and mold investigated experimentally with ring test. Effect of lubricant on the final dimension of part and reduction of friction coefficient observed, adhesive friction change to slip friction. The friction coefficient between surfaces estimated using final dimension and simulation with ABAQUS finite element method software in various conditions. ABAQUS software calculated friction coefficient are concert with friction calibration curves in different conditions.