Patents by Inventor Anis AOUAFI

Anis AOUAFI has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Method for producing high-strength steel parts with improved ductility, and parts obtained by said method
    Patent number: 11976342
    Abstract: A rolled steel sheet, for press hardening is provided, having a chemical composition where Ti/N>3.42, and the carbon, manganese, chromium and silicon contents satisfy: 2.6 C + Mn 5.3 + Cr 13 + Si 15 ? 1.1 % . The sheet has a nickel content Nisurf at any point of the steel in the vicinity of the surface over a depth ?, such that: Nisurf>Ninom, Ninom denoting the nominal nickel content of the steel, and such that, Nimax denoting the maximum nickel content within ?: ( Ni max + Ni nom ) 2 × ( ? ) ? 0.6 , and such that: ( Ni max - Ni nom ) ? ? 0.01 and the surface density of all of the particles Di, and the surface density of the particles D(>2 ?m) larger than 2 micrometers satisfy, at least to a depth of 100 micrometers in the vicinity of the surface of said sheet: Di+6.
    Type: Grant
    Filed: September 13, 2022
    Date of Patent: May 7, 2024
    Assignee: Arcelor Mittal
    Inventors: Sebastian Cobo, Christian Allely, Martin Beauvais, Anis Aouafi, Emmanuel Lucas
  • METHOD FOR PRODUCING HIGH-STRENGTH STEEL PARTS WITH IMPROVED DUCTILITY, AND PARTS OBTAINED BY SAID METHOD
    Publication number: 20230019292
    Abstract: A rolled steel sheet, for press hardening is provided, having a chemical composition where Ti/N>3.42, and the carbon, manganese, chromium and silicon contents satisfy: 2.6 C + Mn 5.3 + Cr 13 + Si 15 ? 1.1 % . The sheet has a nickel content Nisurf at any point of the steel in the vicinity of the surface over a depth ?, such that: Nisurf>Ninom, Ninom denoting the nominal nickel content of the steel, and such that, Nimax denoting the maximum nickel content within ?: ( Ni max + Ni nom ) 2 × ( ? ) ? 0.6 , and such that: ( Ni max - Ni nom ) ? ? 0.01 and the surface density of all of the particles Di , and the surface density of the particles D(>2 ?m) larger than 2 micrometers satisfy, at least to a depth of 100 micrometers in the vicinity of the surface of said sheet: Di+6.
    Type: Application
    Filed: September 13, 2022
    Publication date: January 19, 2023
    Inventors: Sebastian COBO, Christian ALLELY, Martin BEAUVAIS, Anis AOUAFI, Emmanuel LUCAS
  • Method for producing high-strength steel parts with improved ductility, and parts obtained by said method
    Patent number: 11473166
    Abstract: A rolled steel sheet, for press hardening is provided, having a chemical composition where Ti/N>3.42, and the carbon, manganese, chromium and silicon contents satisfy: 2.6 ? C + Mn 5.3 + Cr 13 + Si 15 ? 1.1 ? % . The sheet has a nickel content Nisurf at any point of the steel in the vicinity of the surface over a depth ?, such that: Nisurf >Ninom, Ninom denoting the nominal nickel content of the steel, and such that, Nimax denoting the maximum nickel content within ?: ( Ni max + Ni nom ) 2 × ( ? ) ? 0.6 , and such that: ( Ni max - Ni nom ) ? ? 0.01 and the surface density of all of the particles Di and the surface density of the particles D(>2 ?m) larger than 2 micrometers satisfy, at least to a depth of 100 micrometers in the vicinity of the surface of said sheet: Di+6.
    Type: Grant
    Filed: May 30, 2018
    Date of Patent: October 18, 2022
    Assignee: ArcelorMittal
    Inventors: Sebastian Cobo, Christian Allely, Martin Beauvais, Anis Aouafi, Emmanuel Lucas
  • METHOD FOR PRODUCING HIGH-STRENGTH STEEL PARTS WITH IMPROVED DUCTILITY, AND PARTS OBTAINED BY SAID METHOD
    Publication number: 20200190621
    Abstract: A rolled steel sheet, for press hardening is provided, having a chemical composition where Ti/N>3.42, and the carbon, manganese, chromium and silicon contents satisfy: 2.6 ? C + Mn 5.3 + Cr 13 + Si 15 ? 1.1 ? % . The sheet has a nickel content Nisurf at any point of the steel in the vicinity of the surface over a depth ?, such that: Nisurf >Ninom, Ninom denoting the nominal nickel content of the steel, and such that, Nimax denoting the maximum nickel content within ?: ( Ni max + Ni nom ) 2 × ( ? ) ? 0.6 , and such that: ( Ni max - Ni nom ) ? ? 0.01 and the surface density of all of the particles Di and the surface density of the particles D(>2 ?m) larger than 2 micrometers satisfy, at least to a depth of 100 micrometers in the vicinity of the surface of said sheet: Di+6.
    Type: Application
    Filed: May 30, 2018
    Publication date: June 18, 2020
    Inventors: Sebastian COBO, Christian ALLELY, Martin BEAUVAIS, Anis AOUAFI, Emmanuel LUCAS