우수한 기계적 특성과 형상치수 확보를 위한 정밀 압출기술개발 = The Precise Extrusion-Technical Development to Get Excellent Mechanical-property and Accurate Shape-Dimension

다국어 초록 (Multilingual Abstract)

Most advanced countries are researching to apply light weight materials for rolling stock because weight reduction for railway body derives cost-saving, energy-saving, and high-speed. Likewise, current Korea rolling stock field makes arduous efforts of weight-reduction, miniaturization, and high-efficiency to achieve a high-speed railway. Aluminum becomes suitable material for these projects because it is much lighter than steel or stainless. Manufacturing the railway car body by using the Aluminum is increasing because Aluminum is not bringing the corrosion by unique oxidation-passivate. Aluminum extrusion profile for railway body requires a high mechanical property, awn-ate shape dimension, and stable quality because the railway body is composed with many different kinds of extruded profiles. Therefore, it is necessary to research about Aluminum precision-extrusion technology to maintain exit temperature and die load. The goal of this project is applying the Aluminum extrusion profile to next-generation railway car body by developing the Aluminum extrusion profile according to precision-extrusion technology which may maintain isothermal exit temperature.

목차 (Table of Contents)

• ABSTRACT
• 1. 서론
• 2. 정밀압출 기술개발
• 3. 철도차량 차체용 Operating window 정립
• 4. 결론
• 감사의 글
• Reference