| ARTICLE |
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| Year : 2011 | Volume
: 1
| Issue : 2 | Page : 59-64 |
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Parametric Optimization of Cryogenic-Treated D-3 for Cutting Rate in Wire Electrical Discharge Machining
Hari Singh1, Rajesh Khanna2
1 Department of Mechanical Engineering, NIT, Kurukshetra, Haryana, India
2 Department of Mechanical Engineering, M M Engg College Mullana, Ambala, India
Correspondence Address:
Hari Singh
Department of Mechanical Engineering, NIT, Kurukshetra, Haryana
India
 Source of Support: None, Conflict of Interest: None  | Check |
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Cryogenic treatment ("Cryo") is a supplementary process to improve the properties of metals like high carbon high chromium alloy tool steels (D-3) which are increasingly used in manufacturing high-performance cutting tools (dies and punches), blanking and punching tools, extrusion tools, parts of aerospace and automotive industries, etc. The purpose of this study is to investigate the effect of parameters like pulse width, time between two pulses, maximum feed rate, servo reference mean voltage, short pulse time, and wire mechanical tension, on cutting rate (cr) of cryogenic-treated D-3 in wire electrical discharge machining. An L27 orthogonal array has been used to conduct experiments and statistically evaluate the experimental data by analysis of variance (ANOVA). It is seen that cr decreases with increase in pulse width, time between two pulses, and servo reference mean voltage. cr first decreases and then increases with increase in wire mechanical tension. The confirmation experiments have also been conducted to validate the results obtained by Taguchi technique. |
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