High infeed rate method for grinding ceramic workpieces with sil

Details High infeed rate method for grinding ceramic workpieces with sil High infeed rate method for grinding ceramic workpieces with sil

1997-09-30

2000-02-29

Morgan, Eileen P.

Abrading

Abrading process

451 41, B24B 100

Patent

active

060302771

ABSTRACT:
A method for accurately and economically shaping a zirconia workpiece with a relatively inexpensive silicon carbide grinding wheel is provided. The grinding wheel used in the method preferably utilizes 220 mesh silicon carbide particles bound in a low porosity vitreous matrix. The grinding wheel is then rotated at a sufficient speed to implement a grinding operation, and is engaged against the zirconia workpiece at a diametral feed rate of at least 0.04 mm/sec. The method advantageously removes material from the zirconia workpiece at a high rate of speed with minimal wheel wear, and results in accurate cuts and smooth surface finishes, and also eliminates the need for dressing the wheel prior to the grinding operation.

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