다양한 롤러 단면형상을 적용한 유동성형의 성형력에 관한 평가

다국어 초록 (Multilingual Abstract)

The flow fanning has been used to produce long thin walled tube parts, with reduced fanning force and enhanced mechanical and surface quality for a good finished part, compared with other method formed parts. Therefore, flow forming technique is used widely in industrial production. Spinning and flow forming techniques are used frequently in automotive, aerial, defense industry. Factors for the flow forming machine design are consist of motor power, bed rigidity, mandrel stiffness, spindle power, roller profile, etc. Especially, mandrel, spindle power and roller are important factors for flow forming machine capacity. In this paper, three dimensional finite element method analysis of one-roller backward flow forming of a workpiece is carried out to study effects of roller profile on forming force. Applied roller profile have roller lead geometries of angle 20°, 30°, 40°, concave and convex. Axial and radial forming forces on various roller profiles are obtained and compared with each analysis cases.

목차 (Table of Contents)

• Abstract
• 1. 서론
• 2. 이론 및 해석조건
• 3. 결과 및 고찰
• 4. 결론
• 참고문헌