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학술저널
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대한기계학회 대한기계학회 논문집 A권 대한기계학회논문집 A권 제32권 제11호
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1,010 - 1,015 (6page)

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초록· 키워드

In this study, the characteristics of aluminum tube hydroformed products at different extrusion type and heat treatment conditions were investigated. For the investigation, as-extruded, full annealed and T6-treated Al 6061 tubes at different extrusion type were prepared. To evaluate the hydroformability, free bulge test was performed at room temperature to 300℃. Also mechanical properties of hydroformed products at various pre- and post-heat treatments were estimated by hexagonal prototype hydroforming test at 250℃. And the tensile test specimens were obtained from hexagonal prototype hydroformed tube. As a results, hydroformability of full annealed tube is 5~8% higher than that of extruded and T6-treated tube. The tensile strength and elongation of T6-post heat treated indirect extrusion tube were more than 330㎫ and 12%, respectively. However, T6 pre treated hydroformed product represents high strength, 330㎫ and low elongation, 8%. Therefore, Hydroformability of Al6061 tube showed similar value for both extrusion types. However flow stress of direct tube showed 20~50㎫ lower value than indirect tube.
#Warm Hydroforming(온간액압성형) #Free Bulge Test(자유확관시험) #Aluminum Extrusion Tube(알루미늄 압출 관재)
상세정보 수정요청해당 페이지 내 제목·저자·목차·페이지
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목차

  1. Abstract
  2. 1. 서론
  3. 2. 실험 방법
  4. 3. 실험 결과 및 고찰
  5. 4. 결론
  6. 후기
  7. 참고문헌

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