Hello all, i'm currently workin for a drainage company making access covers and such,one of the fella's has a job making square frames with a brass edging (as seen in any big tesco's floor) made from angle and after welding small cracks appear, he's using an inverter tig set at about 95amps with a brass filler wire from the robot welding machines, i suspect the filler but have no idea of its properties, what should he be using? i've only ever seen brass done before with oxy/acet ? Any help much appreciated CHIP