Numerical and Experimental Investigation on the Abrasive Flow Machining of Artificial Knee Joint Surface

The titanium alloy artificial knee joint is used extensively in the current medical industry due to its distinct characteristics and properties that are like real human joint, but it does need be polished improve performance service life before can used. Due complicated surface profile, traditional abrasive flow machining technique cannot achieve a good finish offering uniformity quality. Thus, this paper, proper constrained channel designed conduct of overcome these issues. A numerical study first conducted explore distribution velocity pressure near target by using COMSOL Multiphysics software, found from dimensionless material removal rate on exchange inlet outlet during process recommended uniformity. Then, corresponding experiments analyze morphology after process. It roughness decreases approximately 394 nm 171 with as well. Therefore, proposed method properly useful for rough polishing fine finishing joint.