HOT-WIRE CONSUMABLE INCAPABLE OF SUSTAINING AN ARC
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United States of America Patent
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N/A
Issued Date -
Jan 9, 2014
app pub date -
Mar 12, 2013
filing date -
Jul 6, 2012
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A system and method for using filler wire in hot wire applications, e.g., brazing, cladding, building up, filling, overlaying, welding, and joining applications, is provided. The filler wire has a first section that has a first resistance per unit length. The filler wire has a second section that has a second resistance per unit length, which is higher than the first resistance per unit length. The second section of the filler wire is configured to melt before the first section during hot-wire applications. In some embodiments, a resistivity of the first section and a resistivity of the second section are equal and the second section has a cross-sectional area that is smaller than a cross-sectional area of the first section. In some embodiments, a resistivity of filler material in the first section and a resistivity of filler material in the second section are different.
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