01]Set the flow of pure argon shielding gas to 16 to 18 cubic feet per hour (CFH) for aluminum that's up to 0.500 inch thick. A percentage of helium can be added for thicker aluminum parts to increase ...

Just one set of standard copper electrodes produced 50,000 high-quality welds on automotive-grade aluminum sheet. The remarkably long electrode life resulted from polishing the copper electrodes ...

Although some engineers have had success in spot welding steel and aluminum together, it has largely been considered impossible to achieve reliable, continuous welds directly between the two ...

Warren — General Motors Co. believes it is the first automaker to weld steel to aluminum through resistance spot welding, a technique it spent some two years developing and expects will save weight ...

The surface contact resistance of aluminum can be stabilized in a suitable micro-ohm range and this will prolong tiplife during spot welding. Alloys 2036-T4 and 5182-0 were processed to give 75 ...