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2012 (Vol. 4, Issue: 17)
Article Information:

Investigation on Electro Discharge Machining of H13

Nosratollah Solhjoei, Amir Vafaei, Forood Khalilzadeh and Keyvan Vafaei
Corresponding Author:  Nosratollah Solhjoei 

Key words:  AISI H13, electrical discharge machining (EDM), linear regression technique, material removal rate (MRR), response surface methodology, ,
Vol. 4 , (17): 3005-3014
Submitted Accepted Published
December 30, 2011 February 06, 2012 September 01, 2012

Electrical Discharge Machining (EDM) is a well-established machining option for manufacturing geometrically complex or hard material parts that are extremely difficult-to-machine by conventional machining processes. The non-contact machining technique has been continuously evolving from a mere tool and die making process to a micro-scale application machining alternative attracting a significant amount of research interests. AISI H13 hot work steel is the tool material most commonly used in hot working processes. In this paper an attempt has been made to develop mathematical models for relating the Material Removal Rate (MRR) and Stability factor (Sf) to input parameters (current, pulse-on time and voltage) in the EDM of H13. A Central Composite Design (CCD) involving three variables with three levels has been employed. Furthermore, a study was carried out to analyze the effects of machining parameters in respect of listed technological characteristics. The results of analysis of variance (ANOVA) indicate that the proposed mathematical models, can adequately describe the performance of the process within the range of the factors being studied. The experimental and predicted values were in a good agreement.
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  Cite this Reference:
Nosratollah Solhjoei, Amir Vafaei, Forood Khalilzadeh and Keyvan Vafaei, 2012. Investigation on Electro Discharge Machining of H13.  Research Journal of Applied Sciences, Engineering and Technology, 4(17): 3005-3014.
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ISSN (Online):  2040-7467
ISSN (Print):   2040-7459
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