Patents Assigned to UACJ CORP.
  • Patent number: 11535919
    Abstract: The invention concerns a method for producing a 6xxx series aluminium sheet comprising the steps of homogenizing an ingot made from a 6XXX series aluminum alloy; cooling the homogenized ingot with a cooling rate in a range of from 150° C./h to 2000° C./h directly to the hot rolling starting temperature; hot rolling the ingot to a hot rolling final thickness and coiling at the hot rolling final thickness with such conditions that at least 50% recrystallization is obtained; cold rolling to obtain a cold rolled sheet. The method of the invention is particularly helpful to make sheets for the automotive industry which combine high tensile yield strength and good formability properties suitable for cold stamping operations, as well as high surface quality and high corrosion resistance with a high productivity.
    Type: Grant
    Filed: July 12, 2017
    Date of Patent: December 27, 2022
    Assignees: CONSTELLIUM NEUF-BRISACH, UACJ CORP.
    Inventors: Gilles Guiglionda, Laurent Boissonnet, Sylvain Carisey, Yusuke Yamamoto, Yoshifumi Shinzato, Mineo Asano, Yoichiro Betsuki