한국소성가공학회:학술대회논문집 (Proceedings of the Korean Society for Technology of Plasticity Conference)
- 한국소성가공학회 2005년도 춘계학술대회 논문집
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- Pages.262-265
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- 2005
3차원 압출 공정에서 다목적 최적화 기법을 이용한 금형 마모율의 최소화
Minimization of Die Wear Rate by Using Multi-Objective Optimization in Three-Dimensional Extrusion Processes
초록
A shape optimization of flow guide is accomplished to minimize the wear rate of die in three-dimensional flat-die extrusion processes. In order to achieve the balanced flow and the uniformed distribution of the effective strain during the extrusion, a multi-objective optimization is implemented. During the process of optimization formulation, the flow balance and the deviation of strain is considered as constrained conditions. The proposed approach is applied to an extrusion of H section. Through the optimization, it has been confirmed that the wear rate of die can be minimized satisfying the constraint.