An evaluation of the effects of process variables in the flux-cored arc welding of hardfacing deposits
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Date
2015-03-11
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Abstract
A lack of knowledge and objective data on the effects of
welding process variables in the application and
performance of weld-deposited hard facings has led to a
number of failures in the past and subsequent mistrust of
the technology. In the work reported in this dissertation,
a full factorial experiment was performed in an effort to
evaluate the effects of arc current, voltage and polarity,
as well as travel speed, stand-off distance and preheat, on
the characteristics and properties of a commercial
hard facing deposit. A total of 64 welds were deposited
under a wide range of welding conditions, using a 2,8mm
"Cobalarc 100M" flux-cored wire.
The