Patent ID: 7304268
Filing Date: 2007-12-04
Classification: B23K

Abstract:
1. A method of determining a stackability performance rating for a stick electrode for pipe welding operations, said method comprising: providing a workpiece having a groove formed therein along a groove axis to a groove depth with a corresponding groove angle; performing a standardized vertical down weld procedure using a stick electrode to form a test weld bead in said groove, said standardized vertical down weld procedure comprising maintaining an axis of said stick electrode at a substantially constant angle with respect to said groove axis while advancing said electrode toward said groove at a slow speed to stack melted metal from said electrode into said groove above an end of said electrode for a linear bead distance of said weld bead in said groove without allowing molten metal to drip below said end of said electrode; measuring a weld time of said weld procedure; measuring said linear bead distance; and determining a rating for said stick electrode according to said weld time and said bead distance.