Volume 12, Issue 5 (1-2013)                   Modares Mechanical Engineering 2013, 12(5): 74-86 | Back to browse issues page

XML Persian Abstract Print

Download citation:
BibTeX | RIS | EndNote | Medlars | ProCite | Reference Manager | RefWorks
Send citation to:

Jabbaripour B. Investigating Output Characteristics in Powder Mixed Electrical Discharge Machining of γ–TiAl Intermetallic. Modares Mechanical Engineering 2013; 12 (5) :74-86
URL: http://mme.modares.ac.ir/article-15-5986-en.html
1- Tarbiat Modares University
Abstract:   (5312 Views)
γ–TiAl intermetallic has outstanding properties such as high resistance against fatigue, oxidation, corrosion, creep, dynamic vibration and high working temperature. These intermetallics are applied in aerospace and automotive industry, turbojet engines and blade manufacturing. In this paper, powder mixed electrical discharge machining (PMEDM) of γ–TiAl intermetallic by means of different kinds of powders including Al, SiC, Gr, Cr and Fe is investigated to compare the output characteristics of the process such as surface roughness, tool wear rate, material removal rate and surface topography with each other. This is an experimental investigation, by means of die sinking EDM machine and a special tank for machining. The results indicate that, aluminum powder as the most appropriate kind of powder in the optimum particle concentration of 2 g/l, improves the surface roughness about 32% comparing with conventional EDM, decreases the tool wear rate about 19%, but decreases the material removal rate about 7.5% and also the Al powder leads to improving the machined surface topography and decreasing the surface defects and micro cracks.
Full-Text [PDF 2759 kb]   (4297 Downloads)    

Received: 2012/02/8 | Accepted: 2012/07/2 | Published: 2012/11/18

Add your comments about this article : Your username or Email:

Rights and permissions
Creative Commons License This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.