Welding Stainless Steel Foil
Process Date: February 2003

Good welds were achieved on this 316 stainless steel at a speed of 110 inches per minute (IPM). Nitrogen was used as a shield gas. A 125W Evolution CO2 laser was pulsed at 1.25 kHz with a pulse length of 516 microseconds, providing an average output power of 102 W. Beam delivery was accomplished using a 2.5” positive meniscus lens with a 0.07” depth of focus and 0.004” spot.

    When welding very thin materials, remember that part fit is very important as any gaps between pieces will lead to burnt sections and poor sealing.


0.0011” stainless steel foil was welded to a 0.01” base with an Evolution 125W laser.