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Experimental Study of the Effects of Wire EDM on the Characteristics of Ferritic Steel, At a Micro-Scale on the Contour Cut Surface

Naveed, Nida (2018) Experimental Study of the Effects of Wire EDM on the Characteristics of Ferritic Steel, At a Micro-Scale on the Contour Cut Surface. Metallurgical Research & Technology, 115 (4). pp. 1-11. ISSN 2271-3646

Item Type: Article

Abstract

This study, on a micro-scale, of the WEDM cut surfaces of specimens to which the Contour Method of residual stress measurement is being applied provides detailed information about the effects of the cutting process on the surface quality. This is defined by a combination of several parameters: variation in surface contour profile, sub-surface damage and surface texture. Measurements were taken at the start, the middle and at the end of the cut. This study shows that during WEDM cutting, a thin layer, extending to a depth of a few micrometres below the surface of the cut, is transformed. This layer is known as the recast layer. Using controlled-depth etching and X-ray diffraction, it is show that this induces an additional tensile residual stress, parallel to the plane of the cut surface. The WEDM cut surface and sub-surface characteristics are also shown to vary along the length of the cut. Moreover, these micro-scale changes were compared with macro scale residual stress results and provides an indication of the point at which the changes occurred by cutting process can be significantly relative to the macro-scale residual stress in a specimen.

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More Information

Depositing User: Nida Naveed

Identifiers

Item ID: 9370
Identification Number: https://doi.org/10.1051/metal/2018032
ISSN: 2271-3646
URI: http://sure.sunderland.ac.uk/id/eprint/9370
Official URL: https://www.metallurgical-research.org/articles/me...

Users with ORCIDS

ORCID for Nida Naveed: ORCID iD orcid.org/0000-0002-6857-1366

Catalogue record

Date Deposited: 16 May 2018 12:38
Last Modified: 04 Feb 2020 11:51

Contributors

Author: Nida Naveed ORCID iD

University Divisions

Faculty of Technology
Faculty of Technology > School of Engineering

Subjects

Engineering > Mechanical Engineering
Engineering

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