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논문 기본 정보

자료유형
학술저널
저자정보
전은채 (KIMM) 최환진 (KIMM) 이규민 (KIMM) 이윤희 (KRISS) 제태진 (한국기계연구원) 김정환 (KIMM) 최두선 (KIMM)
저널정보
한국기계가공학회 한국기계가공학회지 한국기계가공학회지 제13권 제2호
발행연도
2014.4
수록면
64 - 72 (9page)

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초록· 키워드

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In the past, prism patterns have been linear triangular shapes with a 90° angle; however, new micro prism patterns having acute angles or obtuse angles have recently been the subject of demand in the display, lighting and photovoltaic industries. Micro-cutting experiments for micro-prism patterns having 60°, 90°, and 120° angles on an electroplated Ni mold were performed and it was found in this study that the specific cutting resistance increased with a decrease in the tool angles (prism pattern angles). The cause of this variation had been thought to be the increase of the ploughing force due to tip rounding and the friction force due to the edge effect. However, the depth of the cut was large enough that it was possible to neglect these effects. Therefore, this study introduced the concept of representative stress of indentation. The measured stress was varied according to the indentation depth eventhoughthetestedspecimenswereidentical ; the varied stress was termed the representative stress. According to indentation theory, the strain that the Ni mold experienced increased with a decrease in the tool angle. Based on the stress-strain relationship, higher strain means higher stress and higher specific cutting resistance. Therefore, the specific cutting resistance was higher at smaller tool angles that had higher strain and stress.

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ABSTRACT
1. 서론
2. 비절삭저항 이론
3. 실험방법
4. 실험결과 및 고찰
5. 결론
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UCI(KEPA) : I410-ECN-0101-2015-580-001425923