Scratch-deformation of aluminum single crystal

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  • アルミニウム単結晶の引っかき変形挙動
  • アルミニウム タンケッショウ ノ ヒッカキ ヘンケイ キョドウ

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Abstract

Aluminum single crystals having various orientations were scratched with a diamond cone stylus to clarify the deformation mechanism of finished surface by machining. The method is considered as a simplified model for the deformation which occurs in chipless micro-machining, lapping and courses of friction and abrasion. Both the scratching force and scratched track width periodically fluctuate in accordance with the fluctuation of scratching direction even if the crystal plane is identical. The angle of slip lines observed around the scratched tracks is in good agreement with that calculated from the active slip system. The deforming process in the end of scratched track is explained also by the active slip system.

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