Optimizing Dressing Conditions for Minimum Flatness Tolerance when Grinding SKD11 Tool Steel

This study is to determine effects of the dressing parameters to the flatness tolerance (Fl) when grinding SKD11 steel using HaiDuong grinding wheel and also propose the suitable dressing parameters to obtain the smallest flatness tolerance. In this paper, the effects of the six input parameters including feed rate (S), depth of rough dressing cut (a r ), rough dressing times (n r ), depth of finish dressing cut (a f ), finish dressing times (n f ) and non-feeding dressing (n non ) to the flatness tolerance were investigated. To find out the influence of each input parameter on output results, the S/N ratio was analysized. Evaluated experimental results show that, the average flatness tolerance was 4.05μm and deviation of this value was 11.38% compared with the predicted value.