Study on Non-burr Sharp-edge Protecting Grinding Method of Functional Edge

摘要

This paper researches on the formation mechanism of functional edge (e.g. throttle edge of servo valve's valve core) during grinding process, and presents due to plastic deformation which is extruded by grinding wheel, burrs are appeared on the edge, and furthermore the edge becomes not sharp. This paper provides a non-burr & sharp-edge protecting grinding method which is named protection part method, used a protection part to protect the edge out of burrs and be sharp. Experimental data prove that utilizing protection part which is the same hardness with the processed part and an appropriate magnitude of interference parameter, this method can assure non-burr & sharp-edge protecting grinding of functional edge.