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Effects of in-Situ TiC Reinforcements on the Machining Process Characteristics of Al+12Si Matrix
Current Issue
Volume 2, 2014
Issue 4 (August)
Pages: 56-62   |   Vol. 2, No. 4, August 2014   |   Follow on         
Paper in PDF Downloads: 19   Since Aug. 28, 2015 Views: 1013   Since Aug. 28, 2015
Authors
[1]
Belete Sirahbizu Yigezu, School of Multidisciplinary Engineering Addis Ababa Institute of Technology (Addis Ababa University), Addis Ababa, Ethiopia.
[2]
Manas Mohan Mahapatra, Department of Mechanical and Industrial Engineering Indian Institute of Technology, Roorkee, Uttrakhand, India.
[3]
Pradep Kumer Jha, Department of Mechanical and Industrial Engineering Indian Institute of Technology, Roorkee, Uttrakhand, India.
Abstract
The intent of the present study is to investigate the machining process characteristics of in-situ synthesized Al+12%Si/10wt%TiC composites. The experiment was conducted in the course of dry turning process with uncoated carbide tools using NH22 Lathe Machine having a spindle speed range of 20 to 2780 rpm and feed range of 0.04 to 2.24mm rev-1. Cutting speed, feed rate and depth of cut are the process parameters and tool wear mechanism, cutting force (Fz), surface roughness (Ra) and physical appearance of chips are considered as the output measures. SEM, Tool Makers Microscope, Optical Profile Meter and Kistler Piezoelectric Dynamometer have been utilized to measure the outputs. The experimental results revealed that the tools mainly wear at the flank surface. Minimum cutting force (Fz) and better surface roughness have been observed at higher cutting speed and minimum feed rate. Dominantly short and curly chips were generated in the machining process.
Keywords
Aluminum, In-Situ, Titanium, Carbide, Reinforcement, Casting, Turning, Process
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