Experimental investigation of MRR on in situ formed AA7075/TiB2 cast composites machining by wire EDM

S. Ramabalan; H. B. Michael Rajan; I. Dinaharan; S. J. Vijay

doi:10.1504/IJMMM.2015.072001

Experimental investigation of MRR on in situ formed AA7075/TiB₂ cast composites machining by wire EDM

S. Ramabalan, H. B. Michael Rajan, I. Dinaharan, S. J. Vijay

Mechanical Engineering Science

Research output: Contribution to journal › Article › peer-review

14 Citations (Scopus)

Abstract

This paper presents the effects of different input machining parameters (pulse-on time, pulse-off time, peak current, wire feed) and the amount of reinforcement (0, 3, 6 and 9 wt% of TiB₂) on material removal rate (MRR) of AA7075/TiB₂ in situ metal matrix composites. The L₉ orthogonal arrays of Taguchi, the signal-to-noise (S/N) ratio and the analysis of variance (ANOVA) were employed to find the optimal process parameter levels and to analyse the effect of these parameters on material removal rate (MRR). Experimental results show that the unreinforced AA7075 exhibits higher MRR than the AA7075/TiB₂ composites. The average machining speed of the composite was found to be decreasing with increased %wt of TiB₂ reinforcement. Confirmation test with the optimal levels of machining parameters was carried out in order to illustrate the effectiveness of the Taguchi optimisation method.

Original language	English
Pages (from-to)	295-318
Number of pages	24
Journal	International Journal of Machining and Machinability of Materials
Volume	17
Issue number	3-4
DOIs	https://doi.org/10.1504/IJMMM.2015.072001
Publication status	Published - 2015

Keywords

Aluminium matrix composites
AMCs
In situ casting
Material removal rate
MMC
MRR
TiB
Wire EDM

ASJC Scopus subject areas

Mechanics of Materials
Mechanical Engineering
Industrial and Manufacturing Engineering

Access to Document

10.1504/IJMMM.2015.072001

Cite this

@article{715ea812b2464f03980ec88cc407df7a,

title = "Experimental investigation of MRR on in situ formed AA7075/TiB2 cast composites machining by wire EDM",

abstract = "This paper presents the effects of different input machining parameters (pulse-on time, pulse-off time, peak current, wire feed) and the amount of reinforcement (0, 3, 6 and 9 wt% of TiB2) on material removal rate (MRR) of AA7075/TiB2 in situ metal matrix composites. The L9 orthogonal arrays of Taguchi, the signal-to-noise (S/N) ratio and the analysis of variance (ANOVA) were employed to find the optimal process parameter levels and to analyse the effect of these parameters on material removal rate (MRR). Experimental results show that the unreinforced AA7075 exhibits higher MRR than the AA7075/TiB2 composites. The average machining speed of the composite was found to be decreasing with increased %wt of TiB2 reinforcement. Confirmation test with the optimal levels of machining parameters was carried out in order to illustrate the effectiveness of the Taguchi optimisation method.",

keywords = "Aluminium matrix composites, AMCs, In situ casting, Material removal rate, MMC, MRR, TiB, Wire EDM",

author = "S. Ramabalan and {Michael Rajan}, {H. B.} and I. Dinaharan and Vijay, {S. J.}",

note = "Publisher Copyright: Copyright {\textcopyright} 2015 Inderscience Enterprises Ltd.",

year = "2015",

doi = "10.1504/IJMMM.2015.072001",

language = "English",

volume = "17",

pages = "295--318",

journal = "International Journal of Machining and Machinability of Materials",

issn = "1748-5711",

publisher = "Inderscience Enterprises Ltd",

number = "3-4",

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T1 - Experimental investigation of MRR on in situ formed AA7075/TiB2 cast composites machining by wire EDM

AU - Ramabalan, S.

AU - Michael Rajan, H. B.

AU - Dinaharan, I.

AU - Vijay, S. J.

PY - 2015

Y1 - 2015

N2 - This paper presents the effects of different input machining parameters (pulse-on time, pulse-off time, peak current, wire feed) and the amount of reinforcement (0, 3, 6 and 9 wt% of TiB2) on material removal rate (MRR) of AA7075/TiB2 in situ metal matrix composites. The L9 orthogonal arrays of Taguchi, the signal-to-noise (S/N) ratio and the analysis of variance (ANOVA) were employed to find the optimal process parameter levels and to analyse the effect of these parameters on material removal rate (MRR). Experimental results show that the unreinforced AA7075 exhibits higher MRR than the AA7075/TiB2 composites. The average machining speed of the composite was found to be decreasing with increased %wt of TiB2 reinforcement. Confirmation test with the optimal levels of machining parameters was carried out in order to illustrate the effectiveness of the Taguchi optimisation method.

AB - This paper presents the effects of different input machining parameters (pulse-on time, pulse-off time, peak current, wire feed) and the amount of reinforcement (0, 3, 6 and 9 wt% of TiB2) on material removal rate (MRR) of AA7075/TiB2 in situ metal matrix composites. The L9 orthogonal arrays of Taguchi, the signal-to-noise (S/N) ratio and the analysis of variance (ANOVA) were employed to find the optimal process parameter levels and to analyse the effect of these parameters on material removal rate (MRR). Experimental results show that the unreinforced AA7075 exhibits higher MRR than the AA7075/TiB2 composites. The average machining speed of the composite was found to be decreasing with increased %wt of TiB2 reinforcement. Confirmation test with the optimal levels of machining parameters was carried out in order to illustrate the effectiveness of the Taguchi optimisation method.

KW - Aluminium matrix composites

KW - AMCs

KW - In situ casting

KW - Material removal rate

KW - MMC

KW - MRR

KW - TiB

KW - Wire EDM

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DO - 10.1504/IJMMM.2015.072001

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