Influence of Shielding Gas on GMA Welding of Al Alloys

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21220%2F13%3A00211564" target="_blank" >RIV/68407700:21220/13:00211564 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Influence of Shielding Gas on GMA Welding of Al Alloys

Original language description

The research is focused on influence of shielding gas on GMA welding process of precipitation hardenable Al alloys (6xxx and 7xxx). Pure argon of different gas flow 0-35 l/min, different Ar+He mixtures, up to 70 % He, active Ar+CO2 gases were used. The optimum Ar shielding gas flow was found to be 15 l/min, under this value porosity, over this value decrease of weld penetration have been observed. He content in Ar+He shielding gas mixtures is changing heat input and therefore weld shape. Increase of Hecontent improves heat transfer efficiency, weld penetration, weld width etc. Influence of theoretically known properties of gases on welding process (e.g. ionization potential, thermal conductivity etc.) is quite complex, so experimentally researched influence of gases and their mixtures done in this research with exact values and practical results is valuable for praxis.

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

JR - Other machinery industry

OECD FORD branch

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Project

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Continuities

S - Specificky vyzkum na vysokych skolach

Publication year

2013

Confidentiality

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

Name of the periodical

MM Science Journal

ISSN

1805-0476

e-ISSN

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Volume of the periodical

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Issue of the periodical within the volume

4

Country of publishing house

CZ - CZECH REPUBLIC

Number of pages

4

Pages from-to

452-455

UT code for WoS article

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EID of the result in the Scopus database

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