High-power lasers (greater than 5 kW) have been in existence for about two decades. However, their use by industry is extremely limited. Numerous researchers have demonstrated laser welding to a thickness of nearly 1 inch. But almost all laser welding today is for a thickness of 1/8 inch or less. The welding discussed here is for material thickness greater than 1/4 inch in a shop setting for which small number job lots are common.