Papers by Keyword: HEDG

Abstract: Engineering ceramics have been extensively used as structural materials in modern manufacturing industries due to their excellent properties. High Efficiency Deep Grinding (HEDG) with Electrolytic In-process Dressing (ELID) process can realize the stabilized and controlled grinding process of engineering ceramics, but there lies many questions to be done. In the light of Y-TZP materials, the grinding process of HEDG with ELID was optimized, and comparisons were made between HEDG with ELID and HEDG without ELID process for Y-TZP ceramics, and mechanisms of HEDG with ELID were revealed.

Abstract: The residual stress on the ground surface of workpiece in high efficiency deep grinding (HEDG) has been investigated. It has been found that the mechanism in forming the ground surface residual stress in HEDG is much different to that in the conventional shallow cut grinding process. It is not a thermally dominant event as in most of the shallow cut grinding mode; it is instead driven by the combined effects of both the thermal and mechanical loadings. The compressive plastic deformation near the workpiece surface during grinding and the short contact time in the HEDG regime, makes it possible to generate compressive surface stresses even when the surface temperatures are above 700-800°C.