METHOD AND DEVICE FOR FORMING THE WELDING WIRE END
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United States of America Patent
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Issued Date -
May 19, 2011
app pub date -
Jun 22, 2009
filing date -
Jul 30, 2008
priority date (Note) -
Abandoned
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Abstract
The invention relates to a method for forming an end of a welding wire (13) having a defined material and a defined diameter for a threading procedure, wherein the welding wire (13) is delivered from a wire storage via at least one wire core (12) through a contact tube arranged in a welding torch (10), and to a corresponding device thereof. In order to enable automated forming of the end of a welding wire (13), according to the invention prior to the threading procedure, an electric arc (15) is generated between a contact plate (30) connected to a power source (2) and the welding wire (13) as a function of the material and the diameter of the welding wire (13) so as to form the end of the welding wire (13), wherein the end of the welding wire (13) is formed to be hemispherical and the diameter of the hemispherical end of the welding wire (13) does not substantially exceed the diameter of the welding wire (13).
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