79 patents
Page 2 of 4
Utility
Steel Sheet for Manufacturing Press Hardened Parts, Press Hardened Part Having a Combination of High Strength and Crash Ductility, and Manufacturing Methods Thereof
13 May 20
A steel sheet for the manufacture of a press hardened part is provided, having a composition of: 0.15%≤C%≤0.22%, 3.5%≤Mn<4.2%, 0.001%≤Si%≤1.5%, 0.020%≤Al≤0.9%, 0.001%≤Cr≤1%, 0.001%≤Mo≤0.3%, 0.001%≤Ti≤0.040%, 0.0003%≤B≤0.004%, 0.001%≤Nb≤0.060%, 0.001%≤N≤0.009%, 0.0005%≤S≤0.003%, 0.001%≤P≤0.020%.
Martin BEAUVAIS, Alice DUMONT, Alexandre GIBOT, Astrid PERLADE, Kangying ZHU
Filed: 31 May 18
Utility
Vehicle rear body structure and method for manufacturing thereof
11 May 20
A vehicle rear body structure containing a rear rail extending in a longitudinal direction and a rear bumper beam, extending transversely to the longitudinal direction, the rear rail having a rear end and a front end, spaced apart along the longitudinal direction, the rear end being connected to the rear bumper beam and the rear rail extending towards the front of the vehicle from its rear end, wherein the rear rail comprises at least a front portion, an intermediate portion and a rear portion, the front portion being intended for extending alongside a fuel tank of the vehicle, the resistance to plastic deformation of the front portion being greater than the resistance to plastic deformation of the intermediate portion, which is itself greater than the resistance to plastic deformation of the rear portion.
Ivan Viaux
Filed: 8 Dec 16
Utility
Method of producing press-hardened and coated steel parts at a high productivity rate
11 May 20
A sheet or blank is provided which includes a substrate and pre-coating on at least one face of the substrate.
Michel Sanadres, Christine Dessain
Filed: 31 May 17
Utility
Spacer for road safety barrier
11 May 20
The present invention provides a spacer for a road safety barrier.
Michaël Gremling
Filed: 1 Apr 15
Utility
Martensitic Steels with 1700 to 2200 Mpa Tensile Strength
6 May 20
A martensitic steel alloy is provided.
Rongjie Song, Narayan S. Pottore
Filed: 12 Sep 19
Utility
a Coated Metallic Substrate and Fabrication Method
6 May 20
A coated metallic substrate is provided, including, at least; one layer of oxides, such layer being directly topped by an intermediate coating layer comprising Fe, Ni, Cr and Ti wherein the amount of Ti is above or equal to 5 wt. % and wherein the following equation is satisfied: 8 wt. %<Cr+Ti<40 wt. %, the balance being Fe and Ni, such intermediate coating layer being directly topped by a coating layer being an anticorrosion metallic coating.
Jacek GONIAKOWSKI, Thi Ha Linh LE, Claudine NOGUERA, Jacques JUPILLE, Remi LAZZARI, Jean-Michel MATAIGNE, Alexey KOLTSOV, Remi CAVALLOTTI, Daniel CHALEIX, Lucie GAOUYAT
Filed: 30 May 18
Utility
Method of producing press-hardened and coated steel parts at a high productivity rate
4 May 20
A fabrication method for a press hardened part is provided.
Michel Sanadres, Christine Dessain
Filed: 23 Jan 19
Utility
High Formability Steel Sheet for the Manufacture of Lightweight Structural Parts and Manufacturing Process
29 Apr 20
A steel sheet has a composition comprising, by weight: 0.010%≤C≤0.080%, 0.06%≤Mn≤3%, Si≤1.5%, 0.005%≤Al≤1.5%, S≤0.030%, P≤0.040%, Ti and B such that: 3.2%≤Ti≤7.5% and (0.45×Ti)−1.35≤B≤(0.45×Ti)−0.43, optionally Ni≤1%, Mo≤1%, Cr≤3%, Nb≤0.1%, V≤0.1%, the remainder being iron and unavoidable impurities resulting from the smelting.
Frédéric BONNET, Manuel BOBADILLA, Bertrand BELE, Valérie DAESCHLER
Filed: 19 Apr 18
Utility
A method for the manufacturing of liquid metal embrittlement resistant galvannealed steel sheet
22 Apr 20
The present invention relates to a method for the manufacture of a galvannealed steel sheet including the steps of A.) coating of the steel sheet with a first coating consisting of nickel and having a thickness between 150 nm and 650 nm, the steel sheet having the following composition in weight percentage 0.10<C<0.40%, 1.5<Mn<3.0%, 0.7<Si<3.0%, 0.05<Al<1.0%, 0.75<(Si+Al)<3.0%, and on a purely optional basis, one or more elements such as Nb≤0.5%, B≤0.010%, Cr≤1.0%, Mo≤0.50%, Ni≤1.0%, Ti≤0.5%., the remainder of the composition is made up of iron and inevitable impurities resulting from the elaboration, B.) annealing of the coated steel sheet being annealed at a temperature between 600 to 1200° C., C.) coating of the steel sheet obtained in step B.) with a second coating based on zinc and D.) an alloying heat treatment to form a galvannealed steel sheet.
Christian Allely, Pascal Bertho, Anirban Chakraborty, Hassan Ghassemi-Armaki
Filed: 24 Apr 18
Utility
Motor vehicle structural component and front lower section comprising such a component
13 Apr 20
A structural component connected to a structural element is provided.
Cédric Bouton, Edith Lahellec, Jean-Louis Colmont, Thierry Derchu, Maxime Gabrel
Filed: 10 Oct 16
Utility
Method of producing press-hardened and coated steel parts at a high productivity rate
13 Apr 20
A part obtained by austenitization followed by hot stamping and hardening by holding in the stamping tool a sheet or blank is provided, including, a steel substrate, a precoating having at least one layer of aluminum or aluminum alloy, a microstructure of a steel substrate including martensite and/or bainite, a coating on at least one face of the steel substrate resulting from the interdiffusion between the steel substrate and the pre-coating and an oxide layer overlying the coating, an average content by weight of oxygen between 0 and 0.01 μm below a surface of the part being less than 25%, and the average percent by weight of oxygen between 0.1 and 0.2 μm below the surface being less than 10%.
Michel Sanadres, Christine Dessain
Filed: 20 Feb 19
Utility
Multi-layer substrate
13 Apr 20
Substrate provided with a plurality of layers, at least one of which includes metal oxides and is topped directly by a metal coating layer that contains at least 8% by weight nickel and at least 10% by weight chromium, the remainder being iron, additional elements and the impurities resulting from the fabrication process, wherein this metal coating layer is topped directly by an anticorrosion coating layer.
Daniel Chaleix, Eric Silberberg, Bruno Schmitz, Xavier Vanden Eynde, Sergio Pace
Filed: 3 Apr 14
Utility
Process for manufacturing cold-rolled and annealed steel sheet with a very high strength, and sheet thus produced
6 Apr 20
The present invention provides a cold-rolled and annealed steel sheet with a strength greater than 1200 MPa, the composition of which includes, the contents being expressed by weight: 0.10%≤C≤0.25%, 1%≤Mn≤3%, A≥0.010%, Si≤2.990%, S≤0.015%, P≤0.1%, N≤0.008%, it being understood that 1%≤Si+Al≤3%, it being understood that Cr+3Mo≥0.3%, Ti in an amount such that Ti/N≥4 and Ti≤0.040%.
Javier Gil Otin, Antoine Moulin
Filed: 21 Aug 16
Utility
Metal sheet treatment method for reducing blackening or tarnishing during the storage thereof and metal sheet treated with this method
6 Apr 20
The present invention provides a metal sheet including a steel substrate coated on at least one face with a coating including from 0.1 to 20% by weight of magnesium, optionally from 0.1 to 20% by weight of aluminum, the balance being zinc, potential impurities linked to the method and optionally one or more additional elements selected from among Si, Sb, Pb, Ti, Ca, Mn, Sn, La, Ce, Cr, Ni, Zr and Bi, the content by weight of each additional element being less than 0.3%.
Daniel Chaleix, Christian Allely, Maxime Monnoyer, Pascale Feltin
Filed: 3 Jul 14
Utility
High strength multiphase steel, production method and use
6 Apr 20
The invention deals with a cold rolled and hot dip steel sheet, with a tensile strength of at least 980 MPa, with yield strength above or equal to 500 MPa, with total elongation above or equal to 8%, the composition consisting by weight percent: 0.05<C<0.15%, 2<Mn≤3%, Al<0.1%, 0.3<Si<1.5%, 0.01%<Nb<0.05%, N<0.02%, 0.1<Cr+Mo<1%, 0.0001<B<0.0025, Ti<0.5%, V<0.01%, S<0.01%, P<0.05% the remainder of the composition being iron and unavoidable impurities resulting from the smelting and the microstructure contains, in surface fraction: between 50 and 95% of martensite and between 5 and 50% of the sum of ferrite and bainite, wherein the ferrite grain size is below 10μιτι, and wherein the aspect ratio of the ferrite grain size is between 1 and 3.
Dongwei Fan, Hyun Jo Jun, John A. Rotole
Filed: 2 Jun 15
Utility
Methods for producing a pre-lacquered metal sheet having Zn—Al—Mg coatings and corresponding metal sheet
6 Apr 20
A method is provided.
Tiago Machado Amorim, Joëlle Richard, Eric Jacqueson, Audrey Lhermeroult, Pascale Feltin, Jean-Michel Lemaire, Christian Allely, Luc Diez, Jean-Michel Mataigne
Filed: 23 Feb 16
Utility
Tempered and Coated Steel Sheet Having Excellent Formability and a Method of Manufacturing the Same
25 Mar 20
A tempered and coated steel sheet having a composition containing the following elements, expressed in percentage by weight: 0.17%≤carbon≤0.25%, 1.8%≤manganese≤2.3%, 0.5%≤silicon≤2.0%, 0.03%≤aluminum≤1.2%, sulphur≤0.03%, phosphorus≤0.03%, the remainder composition being composed of iron and unavoidable impurities caused by processing, the microstructure of said steel sheet containing in area fraction, 3 to 20% residual austenite, at least 15% of ferrite, 40 to 85% tempered bainite and a minimum of 5% of tempered martensite, wherein cumulated amounts of tempered martensite and residual austenite is between 10 and 30%.
Jean-Marc PIPARD, Marc Olivier THENOT
Filed: 18 Dec 17
Utility
High strength steel and manufacturing method
23 Mar 20
Josée Drillet, Véronique Hebert
Filed: 4 Dec 14
Utility
Coated steel strips, coated stamped products and methods
23 Mar 20
A pre-coated steel strip is provided.
Pascal Drillet, Dominique Spehner, Ronald Kefferstein
Filed: 15 May 19
Utility
Reinforcement Structure for the Back Face of a Vehicle Compartment
18 Mar 20
A reinforcement structure containing: at least one elevation reinforcement profile extending along an elevation direction; at least one transversal reinforcement profile extending along a transversal direction, substantially perpendicular to the elevation direction and at least one compartment panel extending against the elevation reinforcement profile and transversal reinforcement profile; and at least one reinforcement member extending along at least part of the elevation reinforcement profile between the elevation reinforcement profile and the compartment panel, the reinforcement member made of a material having a tensile strength greater than the tensile strength of the material forming the elevation reinforcement profile.
Nicolas SCHNEIDER, Jimmy LAM
Filed: 27 Nov 17