Quality of Surface and Subsurface Layers after WEDM Aluminum Alloy 7475-T7351 Including Analysis of TEM Lamella

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F44555601%3A13420%2F18%3A43894294" target="_blank" >RIV/44555601:13420/18:43894294 - isvavai.cz</a>

Alternative codes found

RIV/00216305:26210/18:PU128577

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Quality of Surface and Subsurface Layers after WEDM Aluminum Alloy 7475-T7351 Including Analysis of TEM Lamella

Original language description

Wire electrical discharge machining (WEDM) is an unconventional machining method indispensable especially for the aeronautical and automotive industries. In this context, the effective manufacturing of high surface quality components from aluminium alloy7475-T7351 requires comprehensive knowledge of the applied production procedures. We therefore performed a designed experiment comprising 33 cycles (with systematic alteration of machine setting parameters such as gap voltage, pulse on time, pulse off time, discharge current, and wire feed), enabling us to evaluate systematically the cutting speeds in the relevant samples. The machined areas were subjected to a thorough analysis involving both the surface and the subsurface layers. The actual topography was assessed using a non-contact profiler, and the entire operation concentrated on 12 parameters within the areal, profile, and basic and bearingprofile categories.To observe the surface relief, we employed several instruments, including the semi-contact atomic force microscopy (AFM) technique;a digital microscope; and a non-contact 3D profiler. Another major step then consisted in examining the morphology and surface defects, a process suitably complemented with a chemical composition analysis (EDX). The distribution of individual elements within the material was investigated in detail using a lamella, whose subsequent inspection relied on atransmission electron microscope (TEM) as the principal tool. To study the subsurface layer and its defects, we prepared metallographic specimens (cross-sections) of the samples and observed them by means of light and electron microscopes.

Czech name

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Czech description

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Type

J_SC - Article in a specialist periodical, which is included in the SCOPUS database

CEP classification

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OECD FORD branch

20501 - Materials engineering

Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

S - Specificky vyzkum na vysokych skolach

Publication year

2018

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Advanced Manufacturing Technology

ISSN

0268-3768

e-ISSN

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Volume of the periodical

18

Issue of the periodical within the volume

99

Country of publishing house

GB - UNITED KINGDOM

Number of pages

18

Pages from-to

2309-2326

UT code for WoS article

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EID of the result in the Scopus database

2-s2.0-85053262340