| Issue |
MATEC Web Conf.
Volume 129, 2017
International Conference on Modern Trends in Manufacturing Technologies and Equipment (ICMTMTE 2017)
|
|
|---|---|---|
| Article Number | 01034 | |
| Number of page(s) | 4 | |
| Section | Modern Manufacturing Technologies, Tools and Equipment | |
| DOI | https://doi.org/10.1051/matecconf/201712901034 | |
| Published online | 07 November 2017 | |
Effect of changing polarity of graphite tool/ Hadfield steel workpiece couple on machining performances in die sinking EDM
Gazi University Vocational School of Technical Sciences, Department of Machine and Metal Technology, 06374, Ankara, Turkey
* Corresponding author: ozerkan@gazi.edu.tr
In this study, machining performance ouput parameters such as machined surface roughness (SR), material removal rate (MRR), tool wear rate (TWR), were experimentally examined and analyzed with the diversifying and changing machining parameters in (EDM). The processing parameters (input par.) of this research are stated as tool material, peak current (I), pulse duration (ton) and pulse interval (toff). The experimental machinings were put into practice by using Hadfield steel workpiece (prismatic) and cylindrical graphite electrodes with kerosene dielectric at different machining current, polarity and pulse time settings. The experiments have shown that the type of tool material, polarity (direct polarity forms higher MRR, SR and TWR), current (high current lowers TWR and enhances MRR, TWR) and pulse on time (ton=48□s is critical threshold value for MRR and TWR) were influential on machining performance in electrical discharge machining.
© The Authors, published by EDP Sciences, 2017
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (http://creativecommons.org/licenses/by/4.0/).
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