The method that is use in most cases is 2 foot short span. I will make the assumption that the 6061T651 Aluminum plate has been purchased to “Type 200® wrought tooling plate or Precision Plate®” specification. If not, standard Aluminum Association tolerance of .100” for thickness of 0.250”–0.624” and .075” for thickness of 0.625”-8.000” would apply (Table 7.18*). A certified 24” straight edge is used in conjunction with certified taper gage or feeler gages and a relatively flat inspection surface.
Description and application of T651 T651 in the alloy inside is a representative of the state, is suitable for the solution heat treatment or self forming process at high temperature after cooling, according to the provisions of the amount of tension plate, rolling or cold finishing bars and forgings, forging or rolling ring ring, these products are no longer thick tensile straightening.