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

Kód výsledku v 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>

Nalezeny alternativní kódy

RIV/00216305:26210/18:PU128577

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

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

Popis výsledku anglicky

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.

Druh

J_SC - Článek v periodiku v databázi SCOPUS

CEP obor

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OECD FORD obor

20501 - Materials engineering

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2018

Kód důvěrnosti údajů

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

Název periodika

Advanced Manufacturing Technology

ISSN

0268-3768

e-ISSN

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Svazek periodika

18

Číslo periodika v rámci svazku

99

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

18

Strana od-do

2309-2326

Kód UT WoS článku

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EID výsledku v databázi Scopus

2-s2.0-85053262340