Welding aluminum should not be complicated.  That is, if you are welding 6061-T6 (very common) with ER5356 or ER4043 filler metal.   Although this alloy is still susceptible to cracking, other aluminum alloys are much more prone to cracking. Below are 6 factors that affect cracking susceptibility when welding aluminum alloys.  Thermal stresses: Aluminum has […]