상세 보기
- Heo, Y.;
- Kim, N.Y.;
- Nam, J.W.;
- Chung, I.G.;
- Joun, M.S.
WEB OF SCIENCE
0SCOPUS
8초록
Skin-shearing phenomenon owing to friction heat during a round-to-half circle drawing (RtHCD) is revealed using the non-isothermal finite element method assisted by the novel steady flow and non-steady temperature scheme (SFNSTS). During the RtHCD, the heated local region of the drawing die forms a friction heat ball (FHB) at the flat die side. The FHB heats the material, causing a sharp increase in the material skin's temperature. This peculiar thermal phenomenon results in a drastic decrease in the flow stress on the material's skin. A vicious circle of increased friction, accelerated heat, and reduced flow stress is activated, which eventually incurs the material's skin-shearing phenomenon, experimentally and numerically validated. © 2024 Elsevier Ltd
키워드
- 제목
- Friction heat ball in round-to-half circle drawing and its effect on the material's skin shearing
- 저자
- Heo, Y.; Kim, N.Y.; Nam, J.W.; Chung, I.G.; Joun, M.S.
- 발행일
- 2024-09
- 유형
- Article
- 권
- 197