Universiti Teknologi Malaysia Institutional Repository

Electrical discharge machining of siliconized silicon carbide using copper electrode

Sarabi, Arash Mazaheri (2014) Electrical discharge machining of siliconized silicon carbide using copper electrode. Masters thesis, Universiti Teknologi Malaysia, Faculty of Mechanical Engineering.

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Abstract

Silicon Carbide is the semiconductor material that becoming popular because of its special characteristic. But, its application is limited due to processing difficulty. Advance machining process is found to be the best and economic way to fabricate this material. However, certain parameters need to be controlled for controlling the accuracy and efficiency of the process. This study presents analysis of some parameters in EDM machining of this material. The Silicon Carbide used for the study is limited to Reaction Bonded Silicon Carbide (SiSiC). Several effects of parameter setting such as on-time (ON), discharge current (I), off-time (OFF) and polarity (Pol) on material removal rate (MRR), surface roughness (Ra), tool wear ratio (TWR), and surface roughness (Ra) is studied. The analysis was done using Design Expert Software by implementing design of experiment method. From this analysis, the significant effect(s) is determined. From that, the mathematical models that consist of only significant effect(s) are established. In order to ensure validity of the model, conformation run is done with three different parameters setup. Finally, the optimum setting to get maximum material removal rate, minimum tool wear ratio and minimum surface roughness is determined. Overall, the results show that the effects of pulse on-time and Polarity are dominant for all responses established

Item Type:Thesis (Masters)
Additional Information:Thesis (Sarjana Kejuruteraan (Mekanikal - Teknologi Pembuatan Termaju)) - Universiti Teknologi Malaysia, 2014; Supervisor : Assoc. Prof. Hamdan Musa, Jafri Mohd. Rohani
Subjects:Q Science > QC Physics
Divisions:Mechanical Engineering
ID Code:42111
Deposited By: Haliza Zainal
Deposited On:09 Oct 2014 17:21
Last Modified:09 Jul 2017 12:15

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