Illinois Tool Works Inc.
Welding power system with integrated purge gas control

Abstract:

A welding power system including a controller with (a) a data input device via which a an operator can input parameters relating to a volume of an interior of one more pieces to be welded and (b) that calculates and outputs a purge time, the purge time being a time period needed to replace an atmosphere within the volume with a purge gas at a predetermined flow rate of the purge gas.