Analysis of Tool
Analysis
of Tool Kind Effect on Material Removal Rate in Nickel Titanium Smart Alloy
Esmaeil Abedi1,
Saeed Daneshmand2, Reza Hessami3
1,2 Department of Mechanical Engineering, Majlesi
Branch, Islamic Azad University, Isfahan, Iran
3.Department
of Mechanical Engineering, Roudbar Branch, Islamic Azad University, Roudbar,
Iran
Abstract: Nickel-Titanium Alloys is a kind of smart
materials that are used in medicine, aerospace and other industries. Because of the strength and hardness, EDM method is
used for machining of this alloy. Electrical
discharge machining process is most practical non-traditional machining methods
when toughness and physical properties of the workpiece does not affect on
machining capability. This study examines the utility of copper, brass and EDM
input parameters on the material removal rate and surface roughness of NiTi
smart alloy. Experimental results show that tool material, the pulse current
and the pulse duration are the most important effect on material removal rate
and surface roughness of NiTi alloy. With increasing pulse current and pulse
duration, material removal rate and surface roughness increases. Copper tools
has higher material removal rate than the brass tools.
[Abedi E, Daneshmand S, Hessami R. Analysis
of Tool Kind Effect on Material Removal Rate in Nickel Titanium Smart Alloy. Life Sci J 2013;10(1):944-949] (ISSN:
1097-8135). http://www.lifesciencesite.com.
Keywords: Nickel-titanium; Electrical discharge machining; Material removal rate; Copper electrode; Brass electrode; Surface roughness.
