대형크랭크샤프트 해머단조공정의 시뮬레이션 및 실험적 검증

다국어 초록 (Multilingual Abstract)

In this paper, non-isothermal analysis of hammer forging process for a large crankshaft is conducted. A simple and computationally efficient approach to non-isothermal three-dimensional hot forging simulation, theoretically based on a rigid-thermoviscoplastic finite element method, is employed. In the approach, it is assumed that the temperatures of dies are increased at the same ratio as the workpiece temperature decreases. Hot forging of a large crankshaft is simulated using AFDEX 3D and the simulated result is compared with the actually forged one in detail. It has been verified that the predictions are in good agreement with the experiments. The successful simulation and development of a large crankshaft by the hammer forging technology will contribute to opening a new area of hammer forging application and to enhancing competitiveness of national machinery industries especially including ship part industries.

목차 (Table of Contents)

• Abstract
• 1. 서론
• 2. 업셋팅 공정
• 3. 대형 크랭크샤프 해머단조 공정
• 4. 결론
• 참고문헌