Journal of the Korean Society for Precision Engineering (한국정밀공학회지)
- Volume 15 Issue 4
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- Pages.125-133
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- 1998
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- 1225-9071(pISSN)
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- 2287-8769(eISSN)
Rigid-Plastic Finite Element Analysis of Burr Formation at the Exit Stage in Orthogonal Cutting
2차원 절삭에서 공구이탈시 발생하는 버에 관한 강소성 유한요소해석
Abstract
The objective of this study is to propose a new approach for modelling of burr formation process during orthogonal cutting when the tool exits the workpiece. This approach is based on the rigid-plastic finite element method combined with the ductile fracture criterion and the element kill method. This approach is applied to orthogonal cutting process to predict the fracture location and the fracture angle as well as the cutting force. To validate this approach, orthogonal cutting tests inside SEM(scanning electron microscope) at very low speed are carried out using A16061-T6 to observe the behavior of the material during the chip and the burr formation. The results of the experiment are compared with those of the finite element simulation.
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