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Development of magnesium tube manufacturing technology with strip cast and warm rolled AZ31 sheet.

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2010년도 춘 계 학술 발표 대회 발표 초 록 , 2010년 5월, 서울 KWJS 2010-Spring

마그네슘 압연판재를 이용한 용접 튜브 제조 기술 개발

Development of magnesium tube manufacturing technology with strip cast and warm rolled AZ31 sheet.

이목영*, 한수식**, 장웅성*, 이흥규*

Mok-Young Lee*, Soo-Sik Han**, Woong-Seong Chang*, Heung-Gyu Lee* * 포항산업과학연구원 재료공정연구소 신금속연구본부

** 금오공대 기계공학과

Abstract

Magnesium alloy is being used for structural material since it has high specific strength. Tubular shape was effective way for enhanced structural design. To manufacture the tube, it is necessary to weld the butted joint of both tubular formed sides. But the magnesium alloy was hardly welded with conventional welding processes. The laser welding was effective way to joint magnesium alloys because it had high weld strength and productivity compare with other welding processes. In this study, magnesium alloy sheets was formed at elevated temperature to tubular shape and welded with laser. Consequently, the magnesium alloy tube was making successful with warm forming and laser welding and bicycle frame was making with it.

Key words; magnesium sheet, tube, warm forming, laser welding

마그네슘 파이프 외관 (상; 압출재, 하; 용접재)

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