Aj. Shih, An experimental investigation of rotary diamond truing and dressing of vitreous bond wheels for ceramic grinding, INT J MACH, 40(12), 2000, pp. 1755-1774
Citations number
17
Categorie Soggetti
Mechanical Engineering
Journal title
INTERNATIONAL JOURNAL OF MACHINE TOOLS & MANUFACTURE
Experiments of rotary diamond truing and dressing of vitreous bond grinding
wheels were conducted to investigate the effects of feed, speed ratio, and
overlap ratio on cylindrical grinding of zirconia. The applications of cer
amic engine components with complex and precise form and the lack of techno
logy for precision truing of diamond grinding wheels have driven the need t
o study-the use of vitreous bond CBN and SiC wheels for form grinding of ce
ramics. Truing and grinding forces and the roundness and surface finish of
ground zirconia parts were measured. By varying truing process parameters,
a wide range of surface finish and roundness could be achieved. Experimenta
l results showed that wheels trued at speed ratio below -1.0 could grind pa
rts with fine surface finish and good roundness. The analysis of truing and
grinding results showed the trend of increasing grinding force at higher s
pecific truing energy and better surface finish at higher grinding force. T
he lack of speed control of the direct-drive, variable-speed truing spindle
was observed and its effect on the reverse of direction of truing force at
positive speed ratios was studied. (C) 2000 Elsevier Science Ltd. All righ
ts reserved.