Affiliation:
1. Universitas Pembangunan Nasional “Veteran”
2. Universitas Pembangunan Nasional "Veteran" Yogyakarta
3. Universitas Gadjah Mada
Abstract
The aim of this research is to investigate the effect of the EDM process on the microstructure of CP-Titanium grade 2 and AISI 316 L in cardiovascular stent manufacturing. The microstructure was observed by an optical light microscope, and the microhardness test is conducted by microhardness vikers to validate the phase that is formed on the material. The pulse currents which were used in the manufacturing of stent by die sinking EDM were 1.5 A and 6.0 A. The experimental results show that the microstructure of CP-Titanium grade 2 is transformed after EDM in cardiovascular stent manufacturing, but it does not occur in the material AISI 316 L. The microstructure of CP titanium grade 2 is transformed from equiaxed α to be TiH for 1.5 A, and equiaxed α to be α’ martensite and TiH for the pulse current 6.0 A. The hardness of equiaxed α, α’ martensite, and TiH are 108 HVN, 113 HVN, and 254 HVN, respectively. The HAZ only occurs in the CP-Ti 2, and its depth for 1.5 A and 6.0 A are 45 μm and 73 μm, respectively.
Publisher
Trans Tech Publications, Ltd.
Subject
Mechanical Engineering,Mechanics of Materials,General Materials Science
Reference17 articles.
1. J.P. Davim, Nontraditional Machining Processes: Research Advances, first ed (Springer, London, 2013).
2. K. Gupta, N.K. Jain, Mater. Manuf. Process. 29, 1470-1476 (2014).
3. M. Rahman, A.B.M.A Asad, Y. S. Wong, Introduction to advanced machining technologies, In Comprehensive Materials Processing, (Elsevier, Amsterdam, 2014) pp.1-13.
4. M.Y. Ali, et al., Int. J. Precis. Eng. Manuf. 11 (5) 779-784 (2010).
5. J. L. H. Talon, et al., Comput. Aided Des. 42, 221-230 (2010).
Cited by
4 articles.
订阅此论文施引文献
订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献