Proceedings of the Korean Society of Tribologists and Lubrication Engineers Conference (한국윤활학회:학술대회논문집)
- 2004.11a
- /
- Pages.245-248
- /
- 2004
A Study on the Cutting characteristics of a plastic sheet including Friction
마찰을 고려한 플라스틱 시트의 절단특성에 관한 연구
- Han Joohyun (Tribology Research Center, Hongik Univ.) ;
- Kim Dohyun (Tribology Research Center, Hongik Univ.) ;
- Kim Chungkyun (Tribology Research Center, Hongik Univ.)
- Published : 2004.11.01
Abstract
The press cutter is productive equipment that practically manufactures materials such as fabrics, papers, films, leathers, rubbers etc. into the desired shapes using cutting method. Plate cutting process is one of the primary energy absorbing mechanisms in a grounding or collision event. The cutting mechanism is complicated and involves plastic flow of plate in the vicinity of the tip, friction between wedge and plate, deformation of plate. In this paper, we studied the effect of friction between cutter and plastic sheet for producing precise and superior products. The press cutter is analyzed numerically using MARC finite element program according to the variation of friction coefficients. The FEM results showed that normal stress, equivalent cauchy stress, normal total strain, equivalent total strain are good when friction coefficient is 0.0 and shear stress, shear total strain are good when friction coefficient is 0.8.