Browse > Article

A Study on the Micro Vibration Forming of Al-based Superplastic Alloy and Zr-based Bulk Metallic Glass  

Son, Seon-Cheon (울산대학교 대학원 기계자동차공학부)
Park, Kyu-Yeol (울산대학교 기계자동차공학부)
Na, Young-Sang (한국기계연구원 첨단재료연구본부)
Publication Information
Transactions of the Korean Society of Machine Tool Engineers / v.16, no.6, 2007 , pp. 193-200 More about this Journal
Abstract
Micro forming is a suited technology to manufacture very small metallic parts(several $mm{\sim}{\mu}m$). Al5083 superplastic alloy with very small grains has a great advantage in achieving micro deformation under low stress due to its relatively low strength at a specific high temperature range. Micro forming of $Zr_{62}Cu_{17}Ni_{13}Al_8$ bulk Metallic glass(BMG) as a candidate material for this developing process are feasible at a relatively low stress in the supercooled liquid state without any crystallization during hot deformation. In this study, the micro formability of Al5083 superplastic alloy and bulk metallic glass, $Zr_{62}Cu_{17}Ni_{13}Al_8$, was investigated with the specially designed micro vibration forming system using pyramid-shape, V-shape and U-shape micro die pattern. With these dies, micro vibration forming was conducted by varying the applied load, time. Micro formability was estimated by comparing the hight of formed shape using non-contact surface profiler system. The vibration load effect to metal flow in the micro die and improve the micro formability of Al5083 superplastic alloy and $Zr_{62}Cu_{17}Ni_{13}Al_8$ bulk Metallic glass(BMG).
Keywords
Micro Vibration Forming; Superplastic Alloy; Bulk Metallic Glasses; Metal Flow;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
1 Inoue, A., 2000, 'Stabilization of metallic supercooled liquid and bulk amorphous alloys,' Acta Mater, Vol. 48, pp. 279-306   DOI   ScienceOn
2 Lee, Y. S., 2004, 'Deformation Behavior of Bulk Amorphous Alloys during Hot Forming Process,' KSTP, Vol. 12, No. 8, pp. 696-703
3 Engel, U. and Eckstein, R., 2002, 'Microformingfrom basic research to its realization,' Journal of Materials Processing Technology, Vol. 125-126, pp. 1-10   DOI   ScienceOn
4 Saotome, Y., Zhang, T. and Inoue, A., 1999, 'Mcroforming of MEMS parts with amorphous alloys,' Mater, Res. Sco. Proc., Vol. 554, pp. 385-390
5 Ok, M. R., Suh, J. Y. and Hong, K. T., 2004, 'Micro Forming of Bulk Metallic Glass using the Deformation Behavior in the Supercooled Liquid Region,' Transactions of Materials Processing, Vol. 13, No. 1, pp. 9-14   DOI
6 Lee, N. K., Choi, T. H., Lee, H. J., Choi, S. O., Park, H. J. and La, W. K., 2005, 'Development of Micro Metal Forming Manufacturing System,' KSMTE Spring conference, 2005, pp. 383-388
7 Kim, N. S., Lim, Y. T. and Jinn, J. T., 2002, Manufacturing Processes for Engineering Materials, Addison-Wesley Publishing Company, pp. 286-290
8 Saotome, Y. and Iwazaki, H., 2001, 'Superplastic backward microextrusion of micro parts for microelectro-mechanical systems,' Journal of Materials Processing Technology, Vol. 119, pp. 307-311   DOI   ScienceOn
9 Na, K. H., Park, H. J. and Cho, N. S., 2000, 'Development of Manufacturing Technology for Milli-Structure,' Proceedings of the Korean Society of Precision Engineering Conference(II), KSPE, pp. 1039-1042
10 Geiger, M., Kleiner, M., Eckstein, R., Tiesler, N. and Engel, U., 2001, 'Microforming,' Annals of the CIRP, Vol. 50, pp. 445-462   DOI   ScienceOn