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Erschienen in:

2019 | OriginalPaper | Buchkapitel

Optimization by AHP-ARAS of EDM Process Parameters on Machining AA7050-10%B₄C Composite

verfasst von : Arvind Kumar, Sayed Abou Iltaf Hussain, Ram Naresh Rai

Erschienen in: Advances in Industrial and Production Engineering

Verlag: Springer Singapore

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Abstract

The present paper aims to develop AA7050/B₄C composite by stir casting method. The flux K₂TiF₆ has been used for proper incorporation of the B₄C particle in the molten matrix. The microstructures of the casted composite were analysed with FE-SEM. The microstructure shows the proper distribution of B₄C particle with the formation of encapsulating layers of Ti compounds around B₄C particles. Machining of AA7050/B₄C composite was done by the non-traditional machining process known as electro-discharge machine (EDM). Multi-criteria decision-making (MCDM) model of AHP-ARAS has been used to evaluate the optimal EDM process parameters for machining AA7050-B₄C composite. Taguchi L₉ orthogonal array was used to design the experiments. The process parameters selected for the experiments were pulse current (I_p), pulse on time (T_on), and pulse off time (T_off) for the responses like material removal rate (MRR), the surface roughness (R_a), and depth of cut (DC). The sensitivity analysis has been used to understand the consistency of the responses by interchanging the weights of the criterion. It has been observed that the process parameters of ninth experiment were the most effective among all selected alternatives. The sensitivity analysis confirmed that the proposed AHP-ARAS model was consistent and can be used to evaluate the performance of EDM process parameters.

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Titel: Optimization by AHP-ARAS of EDM Process Parameters on Machining AA7050-10%B4C Composite
verfasst von: Arvind Kumar
Sayed Abou Iltaf Hussain
Ram Naresh Rai
Verlag: Springer Singapore
Buch: Advances in Industrial and Production Engineering
Print ISBN: 978-981-13-6411-2

Electronic ISBN: 978-981-13-6412-9

Copyright-Jahr: 2019
DOI: https://doi.org/10.1007/978-981-13-6412-9_26

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