Process design of Warm-Forging with extruded Mg-8Al-0.5Zn alloy for differential case in automobile transmission

详细信息    查看全文

• 作者：Jonghun Yoon (1)
  Junghwan Lee (2)
  
  1. Department of Mechanical Engineering ; Hanyang University ; 55 ; Hanyangdaehak-ro ; Sangnok-gu ; Ansan-si ; Gyeonggi-do ; 426-791 ; South Korea
  2. Korea Institute of Materials Science ; 797 ; Changwon-daero ; Seongsan-gu ; Changwon-si ; Gyeongsangnam-do ; 642-831 ; South Korea
  
• 关键词：Differential case ; Mg ; 8Al ; 0.5Zn alloy ; Warm ; forging ; Dynamic Recrystallization (DRX) ; Electron Backscattered Diffraction (EBSD)
• 刊名：International Journal of Precision Engineering and Manufacturing
• 出版年：2015
• 出版时间：April 2015
• 年：2015
• 卷：16
• 期：4
• 页码：841-846
• 全文大小：1,241 KB
• 参考文献：1. Al-Samman, T., Gottstein, G. (2008) Room Temperature Formability of a Magnesium AZ31 Alloy: Examining the Role of Texture on the Deformation Mechanisms. Materials Science and Engineering: A 488: pp. 406-414 doi.org/10.1016/j.msea.2007.11.056" target="_blank" title="It opens in new window">CrossRef
  2. Yoon, J., Park, S. (2014) Forgeability Test of Extruded Mg鈥揝n鈥揂l鈥揨n Alloys under Warm Forming Conditions. Materials and Design 55: pp. 300-308 doi.org/10.1016/j.matdes.2013.10.008" target="_blank" title="It opens in new window">CrossRef
  3. Zheng, X., Dong, J., Yin, D., Liu, W., Wang, F. (2010) Forgeability and Die-Forging Forming of Direct Chill Casting Mg鈥揘d鈥揨n鈥揨r Magnesium Alloy. Materials Science and Engineering: A 527: pp. 3690-3694 doi.org/10.1016/j.msea.2010.03.002" target="_blank" title="It opens in new window">CrossRef
  4. Lee, E. S., Won, J. K., Shin, T. H., Kim, S. H. (2012) Investigation of Machining Characteristics for Electrochemical Micro-Deburring of the AZ31 Lightweight Magnesium Alloy. Int. J. Precis. Eng. Manuf. 13: pp. 339-345 doi.org/10.1007/s12541-012-0043-1" target="_blank" title="It opens in new window">CrossRef
  5. Rashid, R. A. R., Sun, S., Wang, G., Dargusch, M. S. (2013) Experimental Investigation of Laser Assisted Machining of AZ91 Magnesium Alloy. Int. J. Precis. Eng. Manuf. 14: pp. 1263-1265 doi.org/10.1007/s12541-013-0172-1" target="_blank" title="It opens in new window">CrossRef
  6. Shin, K. H., Lee, Y. S., Kim, H. S. (2014) The Flow Behavior Modeling of AZ61 Magnesium Alloy at Elevated Temperatures Considering the Effects of Strain Rate and Grain Size. Int. J. Precis. Eng. Manuf. 15: pp. 745-751 doi.org/10.1007/s12541-014-0395-9" target="_blank" title="It opens in new window">CrossRef
  7. Yoon, J., Cazacu, O., Mishra, R. K. (2013) Constitutive Modeling of AZ31 Sheet Alloy with Application to Axial Crushing. Materials Science and Engineering: A 565: pp. 203-212 doi.org/10.1016/j.msea.2012.12.054" target="_blank" title="It opens in new window">CrossRef
  8. Yoon, J., Lee, Y., Huh, H. (2013) Investigation of Deformation and Collapse Mechanism for Magnesium Tube in Axial Crushing Test. Journal of Mechanical Science and Technology 27: pp. 2917-2921 doi.org/10.1007/s12206-013-0803-6" target="_blank" title="It opens in new window">CrossRef
  9. Cazacu, O., Plunkett, B., Barlat, F. (2006) Orthotropic Yield Criterion for Hexagonal Closed Packed Metals. International Journal of Plasticity 22: pp. 1171-1194 doi.org/10.1016/j.ijplas.2005.06.001" target="_blank" title="It opens in new window">CrossRef
  10. Plunkett, B., Cazacu, O., Barlat, F. (2008) Orthotropic Yield Criteria for Description of the Anisotropy in Tension and Compression of Sheet Metals. International Journal of Plasticity 24: pp. 847-866 doi.org/10.1016/j.ijplas.2007.07.013" target="_blank" title="It opens in new window">CrossRef
  Magnesium Vision 2020: A North American Automotive Strategic Vision for Magnesium.
  11. Jiang, J., Wang, Y., Li, Y., Shan, W., Luo, S. (2012) Microstructure and Mechanical Properties of the Motorcycle Cylinder Body of Am60b Magnesium Alloy Formed by Combining Die Casting and Forging. Materials & Design 37: pp. 202-210 doi.org/10.1016/j.matdes.2012.01.012" target="_blank" title="It opens in new window">CrossRef
  12. Jiang, J., Chen, G., Wang, Y., Du, Z., Shan, W., Li, Y. (2013) Microstructure and Mechanical Properties of Thin-Wall and High-Rib Parts of AM60B Mg Alloy Formed by Double Control Forming and Die Casting under the Optimal Conditions. Journal of Alloys and Compounds 552: pp. 44-54 doi.org/10.1016/j.jallcom.2012.10.086" target="_blank" title="It opens in new window">CrossRef
  13. Lim, S. C. V., Yong, M. S. (2006) Plane-Strain Forging of Wrought Magnesium Alloy AZ31. Journal of Materials Processing Technology 171: pp. 393-398 doi.org/10.1016/j.jmatprotec.2005.07.011" target="_blank" title="It opens in new window">CrossRef
  14. Faraji, G., Jafarzadeh, H., Jeong, H., Mashhadi, M. M., Kim, H. (2012) Numerical and Experimental Investigation of the Deformation Behavior during the Accumulative Back Extrusion of an AZ91 Magnesium Alloy. Materials & Design 35: pp. 251-258 doi.org/10.1016/j.matdes.2011.09.057" target="_blank" title="It opens in new window">CrossRef
  15. Guan, S. K., Wu, L. H., Wang, P. (2009) Hot Forgeability and Die-Forging Forming of Semi-Continuously Cast AZ70 Magnesium Alloy. Materials Science and Engineering: A 499: pp. 187-191 doi.org/10.1016/j.msea.2007.11.136" target="_blank" title="It opens in new window">CrossRef
  16. Shan, D. B., Xu, W. C., Lu, Y. (2004) Study on Precision Forging Technology for a Complex-Shaped Light Alloy Forging. Journal of Materials Processing Technology 151: pp. 289-293 doi.org/10.1016/j.jmatprotec.2004.04.075" target="_blank" title="It opens in new window">CrossRef
  17. Liu, J., Cui, Z. (2009) Hot Forging Process Design and Parameters Determination of Magnesium Alloy AZ31B Spur Bevel Gear. Journal of Materials Processing Technology 209: pp. 5871-5880 doi.org/10.1016/j.jmatprotec.2009.06.015" target="_blank" title="It opens in new window">CrossRef
  18. Lee, J. H., Kang, S. H., Yang, D. Y. (2008) Novel Forging Technology of a Magnesium Alloy Impeller with Twisted Blades of Micro-Thickness. CIRP Annals-Manufacturing Technology 57: pp. 261-264 doi.org/10.1016/j.cirp.2008.03.064" target="_blank" title="It opens in new window">CrossRef
  19. Skubisz, P., Si帽czak, J., Bednarek, S. (2006) Forgeability of Mg鈥揂l鈥揨n Magnesium Alloys in Hot and Warm Closed Die Forging. Journal of Materials Processing Technology 177: pp. 210-213 doi.org/10.1016/j.jmatprotec.2006.04.091" target="_blank" title="It opens in new window">CrossRef
  20. Tang, W. N., Chen, R. S., Zhou, J., Han, E. H. (2009) Effects of ECAE Temperature and Billet Orientation on the Microstructure, Texture Evolution and Mechanical Properties of a Mg鈥揨n鈥揧鈥揨r Alloy. Materials Science and Engineering: A 499: pp. 404-410 doi.org/10.1016/j.msea.2008.09.048" target="_blank" title="It opens in new window">CrossRef
  21. Al-Maharbi, M., Karaman, I., Beyerlein, I. J., Foley, D., Hartwig, K. T. (2011) Microstructure, Crystallographic Texture, and Plastic Anisotropy Evolution in an Mg Alloy during Equal Channel Angular Extrusion Processing. Materials Science and Engineering: A 528: pp. 7616-7627 doi.org/10.1016/j.msea.2011.06.043" target="_blank" title="It opens in new window">CrossRef
  
• 刊物类别：Engineering
• 刊物主题：Industrial and Production Engineering
  Materials Science
  
• 出版者：Korean Society for Precision Engineering, in co-publication with Springer Verlag GmbH
• ISSN：2005-4602

文摘

This paper mainly concerns a warm-forging with Mg-8Al-0.5Zn alloy for the differential case which covers differential gears in the transmission assembly of the automobile. The optimum forging process has been proposed with numerical simulations, which has been validated and compared with experiments conducted in the 1600-ton press shop. In order to validate the applicability of the Mg differential case into the automobile, its microstructure including texture evolution and mechanical properties in tension and compression have been analyzed. It does not only show substantial light-weight design in the total weight of 50% compared with conventional ductile iron, but also demonstrate the net-shape in the outer surface as well as internal volume. However, insufficient mechanical properties and tension-compression asymmetry of the Mg-8Al-0.5Zn differential case are huge obstacles in adopting Mg alloys into the automobile parts, successfully.