| 摘要 |
PROBLEM TO BE SOLVED: To prevent lowering of sharpness and grindability due to abrasion of an edge of a grinding surface and chipping easily to happen. SOLUTION: Abrasion is restrained by reinforcing both side edges of a grinding surface Na by an electrodeposited layer 16 by forming the electrodeposited layers 16 with abrasive grains dispersedin them on both side surfaces extending from the both side edges of the grinding surface Na which is an outer periphery of a thin disc type grindstone main body 12a for cutting. The grindstone main body 12a is a resin bond grindstone for example with abrasive grains 14a dispersed and mixed in a resin bond 13a, and the electrodeposited layers 16 are formed on the both side surfaces through an electrically conductive film layer 15 as required under an electrolytic galvanizing method or a non-electrolytic galvanizing method. Grindability of the grinding surface Na and a reinforcing effect of a grinding surface edge by the electrodeposited layer 16 are favourably secured by setting thickness T3 of the electrodeposited layer 16 at less than 1/3 of thickness T1 of the grindstone main body 12a.
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