Transactions of the Korean Society of Mechanical Engineers A (대한기계학회논문집A)

The Korean Society of Mechanical Engineers (대한기계학회)
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The Direct Extrusion of Copper Clad Aluminum Composite Materials by Using the Conical Dies

원추형 다이를 이용한 Cu-Al 층상 복합재료의 직접압출

  • Published : 2001.10.01
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Abstract

This paper describes experimental investigations in the direct extrusion of copper clad aluminum rods through conical dies. Composite materials consist of two or more different material layers. Copper clad aluminum composite materials are being used fur economic and structural purposes and the development of an efficient production method of copper clad aluminum composite material rods by extrusion is very important, It is necessary to know the conditions in which successful uniform extrusion ,and sound cladding may be carried out without any defects in the direct extrusion. There are several variables that have an influence on determining a sound clad extrusion. In order to investigate the influence of these parameters on the hot direct extrudability of the copper clad aluminum composite material rods, the experimental study have been performed with various extrusion temperatures, extrusion ratios and semi-cone angles of die. Subsequently, the microscopic inspection of interface bonding is carried out for extruded products. By measuring hardness, along extrusion way of products, a variation of hardness has been discussed. Proportional flow state has been considered by measuring radius ratio of Cu sleeve and Al core before and after extrusion.

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References

  1. Avitzur, B., Wu, R., Talbert, S. and Chou, Y.T., 1982, 'Criterion for the Prevention of Core Fracture During Extrusion of Bimetal Rods,' J. Eng. for Ind., Trans. ASME, Vol. 104, pp. 293-304
  2. Avitzur, B., Wu, R., Talbert, S. and Chou, Y.T., 1985, 'An Analytical Approach to the Problem of Core Fracture During Extrusion of Bimetal Rods,' J. of Eng. for Ind., Trans. ASME, Vol. 107, pp. 247-253
  3. Ahmed, N., 1978, 'Extrusion of Copper clad Aluminum Wire,' J. Mechanical Working Technology, Vol. 2, pp. 19-32 https://doi.org/10.1016/0378-3804(78)90012-8
  4. Yang, D.Y., Kim, Y.G. and Lee, C.M., 1991, 'An Upper Bound Solution for Axi-symmetric Extrusion of Composite Rods Through Curved Dies,' Int. J. Mach. Tools Manufacturing, Vol. 31, pp. 565-575 https://doi.org/10.1016/0890-6955(91)90037-4
  5. Park, H.J., Na, K.H., Cho, N.S., Lee, Y.S. and Kim, S.W., 1997, 'A Study of the Hydrostatic Extrusion of Copper-Clad Aluminium Tube,' J. of Materials Processing Technology, Vol. 67, pp. 24-28 https://doi.org/10.1016/S0924-0136(96)02812-9
  6. Tokuno, H. and Ikeda, K., 1991, 'Analysis of Deformation in Extrusion of Composite Rods,' J. Materials Processing Technology, Vol. 26, pp. 323-335 https://doi.org/10.1016/0924-0136(91)90067-O
  7. Oh, H.K. and Ryu, B.W., 1985, 'Effects of Process Variable on the Deformation Field in Extrusion Through Conical Dies,' J. Mechanical Working Technology, Vol. 11, pp. 71-86 https://doi.org/10.1016/0378-3804(85)90113-5
  8. Byon, S.M. and S.M. Hwang, S.M., 1997, 'Die Shape Optical Design in Bimetal Extrusion by the Finite Element Method,' J. of Manufacturing Science and Engineering, Trans. ASME, Vol. 119, pp. 143-150
  9. Sliwa, R., 1997, 'Plastic Zones in the Extrusion of Metal Composites,' J. of Materials Processing Technology, Vol. 67, pp. 29-35 https://doi.org/10.1016/S0924-0136(96)02813-0
  10. Sheppard, T., 1999, 'EXTRUSION OF ALUMINIUM ALLOYS, Kluwer Academic Publisher
  11. 김희남, 윤여권, 강원영, 박성훈, 2000, 'Cu-Al 층상 복합 재료 봉의 직접압출에 관한 연구(Ⅰ),' 한국정밀공학회 춘계 학술대회 논문집(Ⅰ), pp. 124-127
  12. 김희남, 윤여권, 강원영, 박성훈, 2000, 'Cu- Al 층상 복합재료 봉의 직접압출에 관한 연구(II),' 한국정밀공학회 춘계 학술대회 논문집(I), pp. 55-58
  13. 김희남, 윤여권, 강원영, 박성훈, 2000, '직접압출에 의한 Cu-Al 층상 복합 재료 봉의 계면접합,' 한국정밀공학회 춘계 학술대회 논문집, pp. 437-440
  14. 강원영 ,윤여권, 박성훈, 김희남, 2000, 'Cu-Al 층상 복합재료 직접압출시 금속의 유동상태와 경도변화,' 대한기계학회 추계 학술대회 논문집, pp. 759- 765