ISSN:
1013-9826
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
The welding temperature patterns of gas tungsten arc welding for copper thick platesduring Ar, He or N2 shielded arc welding were simulated, and the size of weld pools andheat-affected zones have been compared. It was predicted that the heat-affected zone in the weldedjoints during Ar arc welding is the widest and that during N2 arc welding is the narrowest, while thesize of weld pools using Ar (preheating at 400°C), He and N2 (without preheating) shielding arcwelding is very similar. Among the three kinds of gases shielded arc welding, the temperaturegradient of welded joints during Ar arc welding is the least and that during N2 arc welding is thegreatest. The temperature rise velocity at the arc center during N2 arc welding is the highest, andthose at the zone close to the weld pool of welded joints during He arc and N2 arc welding are a fewhigher than that during Ar arc welding
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/55/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.353-358.2096.pdf
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