Study of Abrasive Flow Machining Parameter Optimization Based on Taguchi Method

In the military and civil field, there are many special passages exist in many key parts. The surface quality often determines the overall performance, which has now become an urgent problem to be solved in the field of super precision machining. But the current common machining method can't improve the surface quality effectively, the abrasive flow machining technology offers the effective solution to it. In order to probe into the abrasive flow machining mechanism and processing technology, and put forward key parameters optimization of abrasive flow processing according to processing characteristics based on Taguchi method, choose three levels L9 orthogonal array of Taguchi to do abrasive flow machining orthogonal experiment, make quantitative evaluation on explicit relationships between surface roughness and processing parameters. Through the analysis we know that the machining precision of workpiece is accomplished by the interactive influence of abrasive viscosity (AV), extrusion pressure (EP), machining time (MT), grinding particle size (GPS) and abrasive consistency. The study results will provide the necessary technical support for a development of abrasive flow machining theory.