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Experimental investigation on surface modification of aluminum by electric discharge coating process using TiC/Cu green compact tool-electrode

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Das, Abhishek and Misra, Joy Prakash (2012) Experimental investigation on surface modification of aluminum by electric discharge coating process using TiC/Cu green compact tool-electrode. Machining Science and Technology, 16 (4). pp. 601-623. doi:10.1080/10910344.2012.731951

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EXPERIMENTAL INVESTIGATION ON SURFACE MODIFICATION OF ALUMINUM BY ELECTRIC DISCHARGE COATING PROCESS USING TiC Cu GREEN COMPACT TOOL ELECTRODE.pdf - Published Version
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Official URL: https://doi.org/10.1080/10910344.2012.731951

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Abstract

This article presents the surface modification of aluminum workpiece by electric discharge coating (EDC) process using TiC /Cu green compact tool-electrode. Powder metallurgy (P/M) tool-electrodes were used to create hard layer(s) on the workpiece surface by a material transfer from this tool-electrode (produced with powder metallurgy) to the workpiece surface it was possible to create hard layer(s) there with high tribological properties and integrity. The present study has been carried out to investigate the effect of input parameters (peak current, pulse-on time, composition and compaction pressure of the tool-electrode) on process performance parameters (roughness and micro-hardness of workpiece surface and coating layer thickness). Regression models have been developed to define a mathematical correlation between input and process performance parameters. Analysis of variance has been conducted at the 95% confidence level, to test the significance of these models. The results of the experiments indicate that the regression models are highly significant. Confirmation experiments were conducted to validate the developed model. By the realization of ‘‘confirmation experiments’’, it became evident that the developed regression models were correct and acceptable. Moreover, EDX analysis of worksample obtained of the workpiece surface has been carried out to confirm the process of material transferring mentioned above.

Item Type: Journal Article
Subjects: T Technology > TJ Mechanical engineering and machinery
T Technology > TS Manufactures
Divisions: Faculty of Science > WMG (Formerly the Warwick Manufacturing Group)
Journal or Publication Title: Machining Science and Technology
Publisher: Taylor & Francis, Inc.
ISSN: 1091-0344
Official Date: 4 December 2012
Dates:
DateEvent
4 December 2012Published
Volume: 16
Number: 4
Page Range: pp. 601-623
DOI: 10.1080/10910344.2012.731951
Status: Peer Reviewed
Publication Status: Published
Access rights to Published version: Restricted or Subscription Access

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