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Working Activity of Cutting Grains in Grinding.

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  • 研削加工における砥粒切れ刃の切削作用
  • ケンサク カコウ ニ オケル トリュウ キレハ ノ セッサク サヨウ

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Abstract

In this paper, the activity of effective cutting grains in cutting of work and the activity of effective cutting grains in generation of finished surface are described. The former was investigated by the measurement of wheel surface temperature immediately after grinding using infrared radiation pyrometer with an optical fiber and the latter was investigated by the measurement of finished surface roughness using three-dimensional surface roughness tracer respectively. These activity of cutting grains in the whole circumference of wheel surface was clarified. The results obtained are as follows: 1) Cutting grains which have effective concern with cutting of work certainly act in every rotation of wheel. 2) The number of effective cutting grains in cutting of work increases as wheel depth of cut increases. 3) Cross-sectional shape of scratch toward grinding direction on the finished surface accurately correspond in the every period of one circumference of wheel in the order of sub-micrometer. 4) Finished surface is generated by some identical cutting grains even when wheel depth of cut increases.

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