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Abstract
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Article Information:
Analysis of Roughness and Flank Wear in Turning Gray Cast Iron Using Cryogenically Treated Cutting Tools
B.R. Ramji, H.N. Narasimha Murthy and M. Krishna
Corresponding Author: B.R. Ramji
Submitted: 2010 April, 28
Accepted: 2010 May, 26
Published: 2010 August, 01 |
Abstract:
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The purpose of this research was to examine the flank wear and surface roughness in turning gray
cast iron using cryogenically treated carbide inserts. Turning experiments were conducted with cutting
velocities: 53, 85, 99, 149 m/sec, feeds: 0.12, 0.16, 0.2, 0.24 mm/rev and a constant depth of cut: 1.5 mm. The
specimens were turned using cryogenically treated and non-treated carbide inserts. The cryogenic treatment
cycle consisted of cooling the test samples from room temperature to cryogenic temperature of -178.9 C in
3 h, soaking at cryogenic tem perature around 24 h and warming to room temperature in about 5 h. The surface
roughness (Ra, R z, Rq and Rt :m) of the turned specimens was measured using talysurf and flank wear of the
tool was measured using toolm akers microscope. The experimental layout was designed based on the Taguchi’s
Orthogonal Array technique and ANOVA was performed to identify the effect of the parameters on the
response variables. Cryogenically treated inserts proved superior to the non-treated in all the test conditions in
terms of lesser flank wear of the inserts and reduced surface roughness of the specimens. The after turned
inserts w ere examined using Scanning Electron Microscopy for studying the flank wear mechanism.
Key words: Carbide tool, cast iron, surface finish, taguchi, wear, ,
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Cite this Reference:
B.R. Ramji, H.N. Narasimha Murthy and M. Krishna, . Analysis of Roughness and Flank Wear in Turning Gray Cast Iron Using Cryogenically Treated Cutting Tools. Research Journal of Applied Sciences, Engineering and Technology, (5): Page No: 414-417.
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ISSN (Online): 2040-7467
ISSN (Print): 2040-7459 |
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