버링 설계 계산식의 개발 및 실험적 검증

다국어 초록 (Multilingual Abstract)

Burring process is widely used for the fabrication of thin sheet metal parts. Current design formula for the burring process shows poor accuracy in the calculation of the basis hole diameter to get the desired height so that the development of burring process costs much due to the empirical try-outs. In the present study, a novel design formula was developed based on the volume constancy and more accurate assumptions of the final shape. To verify the accuracy of design formula, experiments were carried out with various combinations of basis hole diameters and punch diameters. Stainless steel sheet and mild steel sheet were tested for two thicknesses of 0.5㎜ and 1.0㎜. The heights were compared between experimental values and theoretical predictions. As far as the final shapes are close to the assumptions used in the development of design formula, it was shown that a new design formula can be used effectively in the design of burring process.

목차 (Table of Contents)

• Abstract
• 1. 서론
• 2. 버링 설계식 유도
• 3. 버링 가공 실험
• 4. 결과 및 분석
• 5. 결론
• 참고문헌