Paul, Goutam and Das, Mitun and Ghatak, Sankar and Sarkar, S and Mitra, S (2011) An investigation on electro discharge micro-drilling of SiC-20% BN composite. International journal of Materrials and Structural integrity, 5 (4). pp. 348-361. ISSN 1745-0055

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SiC-20% BN composite is a newly developed material having potential applications in several engineering industries. Machining of such type of advanced ceramic composites by conventional methods is not only difficult to perform but it is also very costly. Electro discharge machining is seen as a potential process for such materials because it does not exert any mechanical force on tool and work piece and it is also independent of hardness of the work piece. In the present research the characteristic features of electro discharge micro-drilling of SiC-20% BN composite are studied through experimental investigation. The measured responses are material removal rate (MRR), tool wear rate (TWR) and relative electrode wear (REW). The optimal parameter settings for the responses are determined with the help of a statistical analysis. SEM micrographs of the holes were taken to illustrate the material removal mechanism of the ceramic composite. In the present research study it has been proved that EDM is a potentially successful technique for micro-hole drilling in this new generation composite.

Item Type: Article
Uncontrolled Keywords: SiC-20BN composites; electrical discharge machining; microholes; material removal rate; MRR; tool wear rate; TWR; relative electrode wear; REW; electro-dicharge machining, micromachining; micro EDM; microdrilling; advanced ceramic composites
Subjects: Engineering Materials
Divisions: Bioceramics & Coating
Depositing User: Bidhan Chaudhuri
Date Deposited: 04 Oct 2012 12:25
Last Modified: 30 Mar 2016 10:16

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