Abstract
Chippings on the corners of works in grinding of ceramics are investigated in terms of shape and size. The grindings are carried out by single point diamond tools to clarify the effect of wheel depths of cut, work velocities, shapes of diamond point, angles of work corner and work material on the chippings. The main results are as follows: (1) The shape is characterized by a bell-bottom shape spreading toward the corner on the top side and a sectorial shape extending downward on the end side. (2) Their size on the exit corner in up grinding is the biggest of four kinds of the corners. (3) Their size is affected more largely by wheel depths of cut than by work velocities. (4) Sharp point in a diamond abrasive, dull corner in workpiece and tough material such as PSZ are desirable to use for attaining small scale chippings.
