Title :
Short Arc Modes Determining Both Contact Welding and Material Transfer
Author :
Rieder, Werner F. ; Neuhaus, Alexander R.
Author_Institution :
Inst. of Power Syst. & Energy Econ., Vienna Univ. of Technol.
fDate :
3/1/2007 12:00:00 AM
Abstract :
Microscopic investigations of the molten marks left by metal vapor bounce arcs on both anode and cathode showed characteristic results dependent on the arc mode ("anode arc" or "cathode arc" according to Germer). Differences in arc spot sizes and appearance yielded a key to explain the different weld strength values caused by short time and by long time bounces, respectively, but also to understand the changes of direction of material transfer when the arc mode changes
Keywords :
anodes; arc welding; cathodes; electrical contacts; welds; anode arc; cathode arc; contact welding; material transfer; metal vapor bounce arcs; molten marks; short arc modes; weld strength values; Anodes; Breakdown voltage; Bridge circuits; Cathodes; Contacts; Electric breakdown; Inorganic materials; Power generation economics; Power system economics; Welding; Contact welding; electrical contacts; loss; material transfer; switching;
Journal_Title :
Components and Packaging Technologies, IEEE Transactions on
DOI :
10.1109/TCAPT.2007.892056
