Elastic behavior and plastic behavior in ductile-regime fixed-abrasive machining of optical glass

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  • 光学ガラスの延性モード固定砥粒加工における弾性・塑性挙動
  • コウガク ガラス ノ エンセイ モード コテイトリュウ カコウ ニ オケル ダンセイ ソセイ キョドウ

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Abstract

Nanoindentation and single-point fly cutting (SPFC) were conducted using quartz glass to clarify the elastic and plastic behavior of optical glass in ductile-regime machining using fixed abrasives. From the nanoindentations, the relationships between indentation depth and elastic deformation ratio or plastic deformation ratio were shown to depend on the indenter shape. Three different cutting tools, i.e., a V-shaped diamond cutting tool, a Vickers indenter, and a spherical indenter, were applied to SPFC. The results indicated that the performance of the material removal process, elastic recovery, elastic residual depth of cut and pile-up are dependent on the rake angle and the tip shape of the cutting edges.

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