Simulation and Experimental Analysis of Super High-Speed Grinding of Ductile Material

摘要

This study aims to reduce the work-affected layer of the machined surface by carrying out the grindingrnat the speed over static propagation speed of plastic wave of ductile materials and also aims to clarify such superrnhigh-speed machining mechanism. This paper reports on the result obtained through the molecular dynamicsrnsimulations and experiments on the super-speed grinding below and beyond static propagation speed of aluminum.rnFrom the simulation results, it is verified that the plastic deformation is reduced when the machining speedrnexceeds the material static propagation speed of plastic wave and its mechanism is completely different from thatrnof the ordinary grinding process. Experimental results also show the improvement of the surface integrity whenrnthe machining speed exceeds the material static propagation speed of plastic wave.