砥粒による切削機構のモデル

概要

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The previous report deals with the mechanism of workpiece removal by abrasive grains and it has been clarified that the workpiece removal is almost due to cutting. Then in this report, the average cutting thickness per cutting edge is determined by measuring the impulsive signal from a small thermocouple on the grinding surface and it is investigated how the cutting edge, with broad and flat wear area, can cut the workpiece. The main results obtained are as follows : (1) In the steady grinding state, the average cutting thickness is about 0.1-0.3 μm. (2) In the steady grinding state, it is considered that the grain repeats the following cutting process : i) dulling of the entering edge of wear fiat with an increase of the cutting distance, ii) sliding of grain over the workpiece, iii) sharpening of the entering edge by workpiece during sliding, iv) occurrence of inclination of the grain due to the tangential grinding force and beginning of cutting.
公益社団法人精密工学会の論文
1981-04-05