Showing papers by "V.C. Venkatesh published in 2007"
TL;DR: In this article, a high power laser was used to clean metal chips from the surface of the grinding wheel and to dress the wheel by causing phase transformations to occur on the surfaces of the vitrified grinding wheel.
36 citations
TL;DR: Denkena et al. as mentioned in this paper used diamond pins of diameter 5mm to produce plano surfaces on glass by vertical surface grinding on a 3-axis CNC machining center.
17 citations
TL;DR: AISI D2 steel of 60 HRC hardness was turned with PVD TiN coated ceramic tools (Al2O3/TiCN) as mentioned in this paper, and transgranular cracks occurred with multiple pass turning that was also accompanied by an increase in compressive stresses.
Abstract: A judicious choice of insert material, tool geometry and cutting conditions can make hard turning produce better surfaces than grinding. AISI D2 is the most extensively used cold work tool steel in the tool and die industry. This steel of 60 HRC hardness was turned with PVD TiN coated ceramic tools (Al2O3/TiCN). Intragranular cracks were observed with single pass turning, while transgranular cracks occurred with multiple pass turning that was also accompanied by an increase in compressive stresses. In both passes, the white layer was observed, but in single pass, there was no subsurface deformed grain orientation, whereas in multiple passes, there was a distinct orientation.
12 citations
1 citations