알루미늄 압출 각재의 불규칙 휨 개선에 관한 연구
A Study on the Improvement of Irregular Bending of Aluminum Extruded Square Bars
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초록
With the current increase in national income, consumers are favoring expensive home appliances. Many aluminum parts are used to improve the appearance of TV products. However, many losses are incurred due to production defects. There are many flaws in the bending process. This study studied the improvement of bending defects during fault handling. The material used is an aluminum alloy (6063), and the product is a serrated component on the surface of an aluminum part. After the bending process, it was identified how the sawtooth area was twisted. Then, while bending, experimented to find the main cause of the defect. The study tried to find maximum effectiveness with a minimum experiment using 6 sigma techniques. The experiment showed that there were many defects depending on the bending speed of the part and the distance it was fixed. The experiment used a method of finding optimal conditions by combining variables from each item. As a result, the failure was minimized when the distance between the two axes was maintained at 4.5-5mm and the bending speed was maintained at 15mm/sec. The component fixation force has a fixed hook in the middle of the product, and therefore it is found that changes in the amount of byte for the fixed part do not result in significant improvements in the defect.
Abstract
With the current increase in national income, consumers are favoring expensive home appliances. Many aluminum parts are used to improve the appearance of TV products. However, many losses are incurred due to production defects. There are many flaws in the bending process. This study studied the improvement of bending defects during fault handling. The material used is an aluminum alloy (6063), and the product is a serrated component on the surface of an aluminum part. After the bending process, it was identified how the sawtooth area was twisted. Then, while bending, experimented to find the main cause of the defect. The study tried to find maximum effectiveness with a minimum experiment using 6 sigma techniques. The experiment showed that there were many defects depending on the bending speed of the part and the distance it was fixed. The experiment used a method of finding optimal conditions by combining variables from each item. As a result, the failure was minimized when the distance between the two axes was maintained at 4.5-5mm and the bending speed was maintained at 15mm/sec. The component fixation force has a fixed hook in the middle of the product, and therefore it is found that changes in the amount of byte for the fixed part do not result in significant improvements in the defect.
참고문헌 (5)
- 김기성, "알루미늄 각재의 프레스 굽힘 변형 특성", 소성∙가공, 18(1), pp.13~19 (2009), 한국소성∙가공학회
- 이정국, "Al6063 합금 중공각재 튜브에 의한 프레스 성형 연구", 한국기계가공학회지, 10(6), pp.56~62 (2011), 한국기계가공학회
- B. Y. Han, "Spring back in Warm Forming of Aluminum Alloy Sheets", The Korean Society For Technology of Plasticity, 2003 Fall Conference, pp.152~155 (2003)
- 고대훈, "Al6061 판재성형에서 핫 포밍 퀜칭의 성형성 및 기계적 특성 평가", 대한기계학회논문집 A, 37(4), pp.483~490 (2013), 대한기계학회
- 윤철호, "다구찌 직교배열을 이용한 트레일링 암 튜브 벤딩 공정 변수 최적화", 소성∙가공, 18(1)통권 : 107, pp.67~72 (2009), 한국소성∙가공학회