| 摘要 |
PROBLEM TO BE SOLVED: To extend life and to improve on work quality of a chamfering grinder by increasing wear resistance and strength in the vicinity of the mounting hole at the center of a base metal made of aluminum or an aluminum alloy. SOLUTION: The grinder 10 comprises a disk-shape aluminum alloy base 1 and a grinding grain layer 2 fixed along the outer circumference of the base 1. A conductive adhesive agent is used for bonding the layer 2 to the outer circumference of the base 1. The inner circumferential walls of a grinder mounting hole 11 formed at the center of the base 1 are anodized for the formation of approximately 20μm thick anodic oxide coatings 12a, 12b, and this improves on the inner walls of the hole 11 in strength and wear resistance. COPYRIGHT: (C)2003,JPO
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