Patents by Inventor Guy-Michel Raynaud
Guy-Michel Raynaud 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).
-
Patent number: 8486206Abstract: A method for the production of swaged aluminum alloy parts, by production of a 0.5 mm-5 mm thick alloy strip made of 1-6 wt. % Mg, <1.2 wt. % Mn, <1 wt. % Cu, <1 wt. % Zn, <3 wt. % Si, <2 wt. % Fe, <0.4 wt. % Cr, Zr<0.3, other elements <0.1 each, total of <0.5, the remainder being Al, cutting a blank from the strip, locally or totally heating the blank at a temperature of 150-350° C. for <30 secs, and swaging the heated blank with the aid of heated tools, at least partially, at a temperature of 150-350° C. in the presence of a lubricant which is compatible with later operations. The swaged parts are automotive body work parts.Type: GrantFiled: February 24, 2004Date of Patent: July 16, 2013Assignee: Constellium FranceInventors: Pierre Litalien, Alain Legendre, Dominique Daniel, Guy-Michel Raynaud
-
Publication number: 20130009422Abstract: Auto body roof comprising at least one steel part and a skin part made of aluminum alloy that is attached to the steel part before painting. The aluminum part comprises a sheet of the following composition: Si: 0.7-1.3, Fe<0.5, Cu: 0.5-1.1, Mn: 0.4-1.0, Mg: 0.6-1.2, Zn<0.7, Cr 0.25, Zr+Ti 0.20, other elements <0.05 each and <0.15 total, and the remainder aluminum. The aluminum part, after solution treatment, quenching and age-hardening for three weeks at room temperature, possesses a yield strength R0.2 of less than 170 MPa, and preferably 160 MPa.Type: ApplicationFiled: August 6, 2012Publication date: January 10, 2013Applicant: CONSTELLIUM FRANCEInventors: Myriam Bouet-Griffon, Gilles Guiglionda, Ravi Shahani, Pierre Gavoille, Salim Dermarkar, Guy Michel Raynaud
-
Publication number: 20120121456Abstract: The subject of the invention is an extruded product, of the bar or rod or tube type, with very good precision-turning properties, made of a wrought precision-turning aluminium alloy of the following composition: 0.8?Si<1.5%, optionally 1.0<Si?1.5%, 1.0<Fe?1.8%, optionally 1.0<Fe?1.5%; Cu: <0.1%; Mn: <1%, optionally <0.6%; Mg: 0.6-1.2%, optionally 0.6-0.9%; Ni: <3.0%, optionally 1.0-20.%; Cr: <0.25%; Ti: <0.1%; other elements <0.05% each and 0.15% in total; and the balance aluminium. The subject of the invention is also a precision-turning part obtained from the extruded product as defined above.Type: ApplicationFiled: March 26, 2010Publication date: May 17, 2012Applicant: ALCAN DECIN EXTRUSIONS SROInventors: Mary-Anne Kulas, Ivo Kolarik, Josef Kreuter, Annabelle Bigot, Guy-Michel Raynaud
-
Publication number: 20060130941Abstract: A method for the production of swaged aluminum alloy parts, by production of a 0.5 mm-5 mm thick alloy strip made of 1-6 wt. % Mg, <1.2 wt. % Mn, <1 wt. % Cu, <1 wt. % Zn, <3 wt. % Si, <2 wt. % Fe, <0.4 wt. % Cr, Zr<0.3, other elements <0.1 each, total of <0.5, the remainder being Al, cutting a blank from the strip, locally or totally heating the blank at a temperature of 150-350° C. for <30 secs, and swaging the heated blank with the aid of heated tools, at least partially, at a temperature of 150-350° C. in the presence of a lubricant which is compatible with later operations. The swaged parts are automotive body work parts.Type: ApplicationFiled: February 24, 2004Publication date: June 22, 2006Inventors: Pierre Litalien, Alain Legendre, Dominique Daniel, Guy-Michel Raynaud
-
Patent number: 6969432Abstract: Rolled or extruded products for welded constructions made of AlMgMn type aluminum alloy. These products contain, in % by weight, 3.0<Mg<5.0, 0.75<Mn<1.0, Fe<0.25, Si<0.25, 0.02<Zn<0.40, optionally one or more of the elements Cr, Cu, Ti, Zr such that Cr<0.25, Cu<0.20, Ti<0.20, Zr<0.20, other elements <0.05 each and <0.15 in total, wherein Mn+2Zn>0.75. In the welded state, these products have improved mechanical strength and resistance to fatigue without unfavorable consequences with regard to toughness and corrosion resistance, and are particularly suitable for naval construction, for industrial vehicles and for bicycle frames made of welded tubes.Type: GrantFiled: June 1, 2004Date of Patent: November 29, 2005Assignee: Pechiney RhenaluInventors: Guy-Michel Raynaud, Jean-Luc Hoffmann, Laurent Cottignies, Georges Pillet
-
Publication number: 20050183795Abstract: Rolled or extruded products for welded constructions made of AlMgMn type aluminum alloy. These products contain, in % by weight, 3.0<Mg<5.0, 0.75<Mn<1.0, Fe<0.25, Si<0.25, 0.02<Zn<0.40, optionally one or more of the elements Cr, Cu, Ti, Zr such that Cr<0.25, Cu<0.20, Ti<0.20, Zr<0.20, other elements <0.05 each and <0.15 in total, wherein Mn+2Zn>0.75. In the welded state, these products have improved mechanical strength and resistance to fatigue without unfavorable consequences with regard to toughness and corrosion resistance, and are particularly suitable for naval construction, for industrial vehicles and for bicycle frames made of welded tubes.Type: ApplicationFiled: June 1, 2004Publication date: August 25, 2005Inventors: Guy-Michel Raynaud, Jean-Luc Hoffmann, Laurent Cottignies, Georges Pillet
-
Publication number: 20030140990Abstract: This invention relates to a method of manufacturing highly worked pieces of AlCuMg alloy, comprising the steps of:Type: ApplicationFiled: March 7, 2003Publication date: July 31, 2003Applicant: Pechiney RhenaluInventors: Herve Ribes, Guy-Michel Raynaud, Ronan Dif, Martin Peter Schmidt
-
Publication number: 20030031580Abstract: Rolled or extruded products for welded constructions made of AlMgMn type aluminum alloy. These products contain, in % by weight, 3.0<Mg<5.0, 0.75<Mn<1.0, Fe<0.25, Si<0.25, 0.02<Zn<0.40, optionally one or more of the elements Cr, Cu, Ti, Zr such that Cr<0.25, Cu<0.20, Ti<0.20, Zr<0.20, other elements <0.05 each and <0.15 in total, wherein Mn+2Zn>0.75. In the welded state, these products have improved mechanical strength and resistance to fatigue without unfavorable consequences with regard to toughness and corrosion resistance, and are particularly suitable for naval construction, for industrial vehicles and for bicycle frames made of welded tubes.Type: ApplicationFiled: July 5, 2002Publication date: February 13, 2003Inventors: Guy-Michel Raynaud, Jean-Luc Hoffmann, Laurent Cottignies, Georges Pillet
-
Patent number: 6444059Abstract: Rolled or extruded products for welded constructions are made of an aluminum-magnesium-manganese type aluminum alloy, consisting essentially of, by weight: 3.0<Mg<5.0 0.5<Mn<1.0 Fe<0.25 Si<0.25 Zn<0.40 Cr<0.25 Cu<0.20 Ti<0.20 Zr<0.20 The product has a volumetric fraction of Mn containing dispersoids grater than 1.2%.Type: GrantFiled: July 25, 1997Date of Patent: September 3, 2002Assignee: Pechiney RhenaluInventors: Guy-Michel Raynaud, Jean-Luc Hoffmann, Laurent Cottignies, Georges Pillet
-
Publication number: 20010050118Abstract: The invention relates to rolled or extruded products for welded constructions made of AlMgMn type aluminium alloy.Type: ApplicationFiled: July 25, 1997Publication date: December 13, 2001Inventors: GUY-MICHEL RAYNAUD, JEAN-LUC HOFFMANN, LAURENT COTTIGNIES, GEORGES PILLET
-
Patent number: 6315842Abstract: A mold for plastics made of a rolled, extruded or forged AlZnMgCu aluminum alloy product >60 mm thick, and having a composition including, in weight %: 5.7 < Zn < 8.7 1.7 < Mg < 2.5 1.2 < Cu < 2.2 Fe < 0.14 Si < 0.11 0.05 < Zr < 0.15 Mn < 0.02 Cr < 0.02 with Cu+Mg<4.1 and Mg>Cu, other elements<0.05 each and<0.10 in total, the product being treated by solution heat treating, quenching and aging to a T6 temper.Type: GrantFiled: January 19, 2000Date of Patent: November 13, 2001Assignee: Pechiney RhenaluInventors: Ravi Shahani, Jean-Francois Verdier, Phlilippe Lassince, Guy-Michel Raynaud, Christophe Sigli, Pierre Sainfort
-
Patent number: 6077363Abstract: A metal sheet with a total thickness >0.5 mm comprising an AlCuMg aluminum alloy consisting essentially of Al and, in percent by weight:______________________________________ 3.5 < Cu < 5.0 1.0 < Mg < 2.0 Si < 0.25 Fe < 0.25 Mn < 0.55 ______________________________________all other elements: <0.25with 0<Mn-2Fe<0.2,optionally plated with another aluminum alloy with the thickness of the plating being no more than 12% of the total thickness of the sheet, the sheet having a recrystallization rate >50% at all points and a deviation in recrystallization rate between surface and mid-thickness <35%, the sheet having in the quenched and stretched state or in the quenched, stretched and annealed state, a deflection after machining to mid-thickness of a bar resting on two distant supports with a length l such that:fe<0.14l.sup.2,where f is the deflection expressed in micrometers, e being the thickness of the sheet in mm and l is the length of the bar in mm.Type: GrantFiled: June 17, 1996Date of Patent: June 20, 2000Assignee: Pechiney RhenaluInventors: Fabrice Heymes, Philippe Lequeu, Guy-Michel Raynaud
-
Patent number: 6056836Abstract: Sheet for welded constructions having an ultimate tensile strength R.sub.m >275 MPa, elongation A>22% and a product A.times.R.sub.m >7000, having the composition, in % by weight:______________________________________ Mg: 4.2-4.7; Mn: 0.20-0.40; Zn: <0.20; Fe: 0.20-0.45; Si <0.25; Cr <0.15; Cu <0.25; Ti <0.10; Zr <0.10; ______________________________________other elements <0.05 each and <0.20 in total,balance Al.Type: GrantFiled: February 23, 1998Date of Patent: May 2, 2000Assignee: Pechiney RhenaluInventors: Jean-Luc Hoffman, Guy-Michel Raynaud, Martin-Peter Schmidt, Herve Ribes
-
Patent number: 6027582Abstract: A rolled, forged or extruded AlZnMgCu alloy product, used to manufacture structural elements for aircraft, particularly wing spars. The product is greater than 60 mm thick, and has a composition (% by weight):5.7<Zn<8.71.7<Mg<2.51.2<Cu<2.20.07<Fe<0.14Si<0.110.05<Zr<0.15Mn<0.02Cr<0.02with Cu+Mg<4.1, and Mg>Cu,other elements <0.05 each and <0.10 in total. The product is treated by solution heat treating, quenching and possibly aging, and has in the treated T7451 or T7452 temper the following properties:a) a yield strength measured at quarter-thickness>400 MPa in the L and TL directions,b) toughness under plane strain in the S-L direction>26 MPa.sqroot.m and in the L-T direction >74-0.08e-0.07R.sub.0.2L MPa.sqroot.m (e=thickness in mm), andc) a stress corrosion threshold>240 MPa.Type: GrantFiled: July 21, 1997Date of Patent: February 22, 2000Assignee: Pechiney RhenaluInventors: Ravi Shahani, Jean-Francois Verdier, Phlilippe Lassince, Guy-Michel Raynaud, Christophe Sigli, Pierre Sainfort
-
Patent number: 5792287Abstract: A metal sheet with a total thickness>0.5 mm comprising an AlCuMg aluminum alloy consisting essentially of Al and, in percent by weight:3.5<Cu<5.01.0<Mg<2.0Si<0.25Fe<0.25Mn<0.55all other elements: <0.25with0<Mn-2Fe<0.2,optionally plated with another aluminum alloy with the thickness of the plating being no more than 12% of the total thickness of the sheet, the sheet having a recrystallization rate>50% at all points and a deviation in recrystallization rate between surface and mid-thickness<35%, the sheet having in the quenched and stretched state or in the quenched, stretched and annealed state, a deflection after machining to mid-thickness of a bar resting on two distant supports with a length l such that:fe<0.14 1.sup.2,where f is the deflection expressed in micrometers, e being the thickness of the sheet in mm and l is the length of the bar in mm.Type: GrantFiled: June 17, 1996Date of Patent: August 11, 1998Assignee: Pechiney RhenaluInventors: Fabrice Heymes, Philippe Lequeu, Guy-Michel Raynaud
-
Patent number: 5616190Abstract: The invention relates to a process for producing, by casting between rolls, an aluminum alloy sheet suitable for making up constituent elements of cans for food use, the aluminum alloy containing (by weight) between 1 and 4% of Mg and between 0 and 1.6% of Mn, the process being characterized in that said sheet is obtained by casting of said alloy in the liquid state between two rolls in the form of a strip having a thickness of at most 4 mm followed by at least one heat treatment at a temperature between 400.degree. and 580.degree. C. so that the sheet is at least partially recrystallized and cold-rolling to a final thickness of less than 0.3 mm.The sheet obtained has a yield stress, a formability index and a resistance of the coating to delamination which are improved and make it suitable for application to can manufacture and, in particular, to can lids.Type: GrantFiled: April 24, 1995Date of Patent: April 1, 1997Assignee: Pechiney RhenaluInventors: Jean-Marc Legresy, Guy-Michel Raynaud
-
Patent number: 5516382Abstract: An aluminum alloy useful for drawing and/or ironing, particularly of drink cans. The alloy consists essentially of, in weight percent, Fe<0.25; Si<0.25; Mn from 1.05 to 1.6; Mg from 0.7 to 2.5; Cu from 0.20 to 0.6; Cr from 0 to 0.35; Ti from 0 to 0.1; V from 0 to 0.1; other elements: each <0.05; total<0.15; and remainder Al.Type: GrantFiled: October 20, 1994Date of Patent: May 14, 1996Assignee: Pechiney RhenaluInventor: Guy-Michel Raynaud
-
Patent number: 5102475Abstract: A process for obtaining lithium-based thin sheets, generally used for the production of negative plates for accumulators. The thin sheets are formed by adding magnesium to a bath of molten lithium, transforming the alloy into a solid product in a form suitable for rolling, and rolling the solid product obtained by passing it between steel cylinders a plurality of times at ambient temperature to obtain thin sheets.Type: GrantFiled: October 4, 1990Date of Patent: April 7, 1992Assignee: Pechiney RechercheInventors: Guy-Michel Raynaud, Gilles Regazzoni, Gilles Nussbaum, Max Reboul
-
Patent number: 4943000Abstract: A method is disclosed for brazing without filler metal two components, of which at least one is an Al alloy. According to the method, prior to brazing, at least one Al alloy component is maintained in a region of temperatures included between the temperature of solvus T.sub.v of the alloy and 2/5 of temperature of fusion (solidus) T.sub.s of the alloy, expressed in degrees Kelvin, for a sufficient period of time. After this treatment, which may or may not be isothermal, the alloy is suitable for brazing in a domain of temperatures included between the temperature of fusion T.sub.e of the most fusible eutectic corresponding to the equilibrium diagram of the constituents of the alloy, and that of the solidus of the alloy. The method permits the realization of perfectly homogeneous brazed seams for alloys considered not to be brazable.Type: GrantFiled: December 16, 1987Date of Patent: July 24, 1990Assignee: Cegedur Societe de Transformation de l'Aluminum PechineyInventors: Guy-Michel Raynaud, Louis Realis, Didier Constant
-
Patent number: 4816088Abstract: The invention relates to a method for the deformational transformation of aluminum and its alloys comprising the steps of deforming the aluminum in the solid state and annealing the deformed aluminum at a temperature at which recrystallization occurs. The recrystallization temperature of the aluminum is raised and the grain size is minimized by adding to the aluminim 5 to 1000 ppm uranium prior to the deformation. The method is particularly applicable to the production of aluminum based sheets intended to be subjected to heating at a relatively high temperature, for example the heating which accompanies enamelling or brazing operations, where the heating operation could change the mechanical properties of the sheets.Type: GrantFiled: November 23, 1987Date of Patent: March 28, 1989Assignee: Cegedur Societe de Transformation de L'Aliminium PechineyInventors: Francois-Regis Boutin, Guy-Michel Raynaud