Improving Process of Surface Roughness with Super-soft Grade Resinoid Bond Wheel (2nd Report)

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  • 極軟質レジノイド砥石による表面あらさ改善過程の研究 (第2報)
  • 極軟質レジノイド砥石による表面あらさ改善過程の研究(第2報)表面あらさ極小化現象を利用した仕上加工法の提案
  • ゴクナンシツ レジノイド トイシ ニ ヨル ヒョウメン ア ラ サ カイゼン カテイ ノ ケンキュウ ダイ2ホウ ヒョウメン ア ラ サ キョクショウカ ゲンショウ オ リヨウ シタ シアゲ カコウホウ ノ テイアン
  • —Grinding Method Based on the Minimizing Phenomenon of Surface Roughness—
  • —表面あらさ極小化現象を利用した仕上加工法の提案—

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Abstract

The surface roughness decreases down to the minimum just after start of plunge grinding with a super-soft grade resinoid bond wheel, of which bonding material is prepared by the interaction of polyvinyl alcohol and thermosetting plastics. In this paper, the grinding method with the resinoid bond wheel is investigated for the finest surface finish of workpiece, based on such minimizing phenomenon of surface roughness. Main conclusions obtained in this paper are as follows : (1) The finest surface finish is obtained by spark-out grinding operation starting just at the moment on which the surface roughness of workpiece decreases down to the minimum. (2) The surface finish by this grinding operation decreases with decreasing the initial surface roughness, but the decrease in surface roughness during the spark-out grinding process increases with increasing initial surface roughness. (3) The repetition of this grinding operation without dressing makes the surface finish smaller than that by a general grinding operation with larger depth of cut before spark-out grinding.

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