Magnesium Containing Patents (Class 148/439)
  • Patent number: 11359269
    Abstract: An alloy composition is provided. The alloy composition includes silicon (Si) at a concentration of greater than or equal to about 0.55 wt. % to less than or equal to about 0.75 wt. %, magnesium (Mg) at a concentration of greater than or equal to about 0.55 wt. % to less than or equal to about 0.75 wt. %, chromium (Cr) at a concentration of greater than or equal to about 0.15 wt. % to less than or equal to about 0.3 wt. %, and a balance of the alloy composition being aluminum (Al). The alloy composition has an intermetallic phase content of less than or equal to about 3 wt. %. Methods of preparing the alloy composition and of processing the alloy composition are also provided.
    Type: Grant
    Filed: February 8, 2019
    Date of Patent: June 14, 2022
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Arianna T. Morales, Raja K. Mishra, Anil K. Sachdev
  • Patent number: 11261507
    Abstract: The aluminum alloy product of an embodiment of the present invention includes a pair of outer regions and an inner region positioned between the outer regions. A first concentration of eutectic forming alloying elements in the inner region is less than a second concentration of eutectic forming alloying elements in each of the outer regions. Further, the aluminum alloy product has a delta r value of 0 to 0.10. The delta r value is calculated as follows: Absolute Value [(r_L+r_LT?2*r_45)/2] and the r_L is an r value in a longitudinal direction of the aluminum alloy product, the r_LT is an r value in a transverse direction of the aluminum alloy product, and the r_45 is an r value in a 45 degree direction of the aluminum alloy product.
    Type: Grant
    Filed: January 25, 2016
    Date of Patent: March 1, 2022
    Assignee: ARCONIC TECHNOLOGIES LLC
    Inventors: John Newman, Tim Hosch
  • Patent number: 11255008
    Abstract: The present invention discloses a method for processing a highly alloyed aluminum alloy sheet with a high rolling yield, including the steps of cold rolling and hot rolling of an alloy sheet followed by heat treatment. The highly alloyed Al—Cu—Mg—Ag alloy sheet is subjected to short-time solution treatment and quenching at high temperature for multiple times by increasing the solution treatment temperature and shortening the solution treatment time. In this way, the mechanical properties of the alloy at room temperature and high temperature match with or even exceed those of a conventional alloy subjected to long-time solution treatment at high temperature. The present invention implements multiple times of short-time continuous solution treatment and quenching of a highly-alloyed coiled aluminum alloy sheet. This prevents a large amount of scraps caused by the conventional processes of segmented solution treatment and quenching of the coiled material and stretching straightening treatment.
    Type: Grant
    Filed: June 9, 2020
    Date of Patent: February 22, 2022
    Assignee: Central South University
    Inventors: Zhiyi Liu, Ye Chen, Jian Wang, Jing Cao, Song Bai
  • Patent number: 11241871
    Abstract: Improved aluminum can end stock (CES) is disclosed. The CES includes a laminated, amorphous polymer coating exhibiting low feathering, low blushing, and high performance in an acetic acid test. The laminated metal strip can include the laminated polymer coating on an interior-facing side and a lacquered coating on an exterior-facing side. The CES is formed by performing an annealing process on the laminated metal strip, wherein the metal strip is raised to an annealing temperature above the melting point of the polymer for a sufficient duration to render the polymer amorphous. In some cases, the polymer film laminated to the metal strip is a Polyethylene terephthalate (PET) film.
    Type: Grant
    Filed: May 5, 2017
    Date of Patent: February 8, 2022
    Assignee: Novelis Inc.
    Inventors: Peter Spahn, Heinrich Prinzhorn, Nicolas C. Kamp, Dhiren Bhupatlal Ruparelia
  • Patent number: 11092155
    Abstract: A scroll compressor comprising a fixed scroll (15); an orbiting scroll (16) supported in a manner allowing for orbiting motion; a discharge port through which a fluid compressed by the two scrolls (15, 16) is discharged; an end plate step portion (16E) provided on an end plate of the orbiting scroll (16) formed so that a height of the end plate is higher on a center portion side in the direction of a spiral wrap and lower on an outer end side; and a wrap step portion (15E) provided on a wall portion of the fixed scroll (15) that corresponds to the end plate step portion (16E) so that a height of the wall portion is lower on the center portion side of the spiral and higher on the outer end side; wherein the orbiting scroll (16) is treated for surface hardening and the fixed scroll (15) is not treated for surface hardening.
    Type: Grant
    Filed: March 8, 2016
    Date of Patent: August 17, 2021
    Assignee: MITSUBISHI HEAVY INDUSTRIES THERMAL SYSTEMS, LTD.
    Inventors: Hajime Sato, Makoto Takeuchi, Genta Yoshikawa, Kazuhide Watanabe, Katsuhiro Fujita, Takayuki Hagita, Takayuki Kuwahara
  • Patent number: 11008641
    Abstract: Systems and methods for continuously casting Al—Mg alloy sheet or plate product having a high amount of magnesium are disclosed. The Al—Mg products have 4 or 6 to 8 or 10 wt. % Mg and are resistant to both stress corrosion cracking and intergranular corrosion.
    Type: Grant
    Filed: April 22, 2019
    Date of Patent: May 18, 2021
    Assignee: ARCONIC TECHNOLOGIES LLC
    Inventors: Ali Unal, David A. Tomes, Gavin Wyatt-Mair, David Timmons
  • Patent number: 10920301
    Abstract: An aluminum alloy casting excellent in high temperature strength and thermal conductivity, a method of producing the same, and an aluminum alloy piston for internal combustion engine using this casting. An aluminum alloy casting having a chemical composition comprising Si: 12.0 to 13.5 mass % Cu: 4.5 to 5.5 mass % Mg: 0.6 to 1.0 mass % Ni: 0.7 to 1.3 mass % Fe: 1.15 to 1.25 mass % Ti: 0.10 to 0.2 mass % P: 0.004 to 0.02 mass % and a balance of Al and unavoidable impurities, wherein in an observed field of view of 0.2 mm2, the major axis length of the Al—Fe—Si based crystallites is 100 ?m or less by average length of 10 crystallites from the largest down. The method for producing the casting comprising casting a melt of aluminum alloy having the above chemical composition at cooling rate of 100° C./sec or more, then performing aging treatment.
    Type: Grant
    Filed: April 14, 2016
    Date of Patent: February 16, 2021
    Assignees: Nippon Light Metal Company, Ltd., Honda Motor Co., Ltd.
    Inventors: Izumi Yamamoto, Kazuhiro Oda, Hisayasu Kojima, Naoko Sato, Ryo Wakabayashi, Akito Tanihata
  • Patent number: 10724123
    Abstract: The invention relates to extruded products suitable for turning, made from aluminium alloy with a composition (in weight %) of: 0.4-0.8 Si; 0.8-1.2 Mg; 0.20-0.4 Cu; 0.05-0.4 Fe; Mn?0.10; Ti<0.15; Cr?0.10; Bi?0.8; Pb?0.4; other elements <0.05 each and <0.15 remainder being aluminium, characterised in that the granular structure thereof is essentially recrystallized. The invention also relates to the method for the production of said products. The invention further relates to anodised turned mechanical parts obtained from extruded products according to the invention and to the production method thereof. The products of the invention are particularly suitable for the production of brake pistons and gearbox elements.
    Type: Grant
    Filed: March 20, 2015
    Date of Patent: July 28, 2020
    Assignee: CONSTELLIUM EXTRUSION DECIN S.R.O.
    Inventors: Lukasz Dolega, Jean-sylvestre Safrany, Ivo Kolarik
  • Patent number: 10697047
    Abstract: An aluminum alloy extruded material in relation with the present invention is with high strength by die quench air cooling and excellent in SCC resistance. The aluminum alloy extruded material is an Al—Zn—Mg-based aluminum alloy extruded material for structural member for automobiles such as a bumper reinforce, a door guard bar and the like which satisfies three expressions of 5.0?[Zn]?7.0, [Zn]/5.38<[Mg]?[Zn]/5.38+0.7, and [Zn]+4.7[Mg]?14, where [Mg] represents mass % of Mg and [Zn] represents mass % of Zn, and contains at least either one element of Cu: 0.1-0.6 mass % and Ag: 0.01-0.15 mass %, Ti: 0.005-0.05 mass %, and at least one element out of Mn: 0.1-0.3 mass %, Cr: 0.05-0.2 mass %, Zr: 0.05-0.2 mass %.
    Type: Grant
    Filed: December 12, 2011
    Date of Patent: June 30, 2020
    Assignee: KOBE STEEL, LTD.
    Inventors: Yukimasa Miyata, Shinji Yoshihara
  • Patent number: 10669615
    Abstract: An aluminium, magnesium and silicon-based die casting alloy having 5.0-7.0 wt. % magnesium, 1.5-7.0 wt. % silicon, 0.3-0.8 wt. % manganese, 0.03-0.5 wt. % iron, 0.01-0.4 wt. % molybdenum, 0.01-0.3 wt. % zirconium, 0-0.25 wt. % titanium, 0-0.25 wt. % strontium, 0-250 ppm phosphorus, 0-4 wt. % copper and 1-10 wt. % zinc, the remainder being aluminium and inevitable impurities.
    Type: Grant
    Filed: May 2, 2016
    Date of Patent: June 2, 2020
    Assignee: Rheinfelden Alloys GmbH & Co. KG
    Inventor: Stuart Wiesner
  • Patent number: 10612116
    Abstract: In an example of a method for increasing strength of an aluminum alloy, the aluminum alloy is formed in a molten state. The aluminum alloy includes from about 4 wt % to about 11 wt % silicon, from greater than 0.2 wt % to about 0.5 wt % chromium, from about 0.1 wt % to about 0.5 wt % magnesium, from about 0.01 wt % to about 0.1 wt % titanium, equal to or less than about 0.5 wt % iron, equal to or less than about 0.5 wt % manganese, and a balance of aluminum. The aluminum alloy is subjected to a solution heat treatment. The aluminum alloy is quenched, and the aluminum alloy is age hardened at an age hardening temperature ranging from about 140° C. to 175° C. for a time period ranging from about 3 hours to about 35 hours.
    Type: Grant
    Filed: November 8, 2016
    Date of Patent: April 7, 2020
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Bin Hu, Pan Wang, Qi Lu
  • Patent number: 10604825
    Abstract: An Aluminum-Silicon casting alloy for use in high temperature service conditions. The alloy composition includes, by weight percentage, from about 5.00% to about 17.00% Silicon (Si), from about 0.00% to about 0.90% Iron (Fe), from about 0.00% to about 1.00% Manganese (Mn); from about 0.000% to about 0.018% Strontium (Sr), from about 0.00% to about 2.00% Copper (Cu), from about 0.00% to about 0.50% Magnesium (Mg), from about 0.00% to about 0.05% Zinc (Zn), from about 0.01% to about 0.10% Boron (B); and a balance of Aluminum (Al).
    Type: Grant
    Filed: May 12, 2016
    Date of Patent: March 31, 2020
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventor: Herbert W. Doty
  • Patent number: 10593359
    Abstract: A magnetic recording medium substrate is provided in which a NiP type plating film is formed on a surface of an aluminum alloy substrate that includes Si in a range of 9.5 mass % or more and 11.0 mass % or less, Mn in a rage of 0.45 mass % or more and 0.90 mass % or less, Zn in a range of 0.32 mass % or more and 0.38 mass % or less, Sr in a range of 0.01 mass % or more and 0.05 mass % or less. In the alloy structure of the aluminum alloy substrate, an average particle diameter of Si particles is 2 ?m or less, the film thickness of the NiP type plating film is 7 ?m or more. An outer diameter of the magnetic recording medium substrate is 53 mm or more, the thickness is 0.9 mm or less, and the Young's modulus is 79 GPa or more.
    Type: Grant
    Filed: June 13, 2017
    Date of Patent: March 17, 2020
    Assignee: SHOWA DENKO K.K.
    Inventors: Isao Murase, Kiminori Sugimoto
  • Patent number: 10584402
    Abstract: Novel recycled aluminum alloys are provided for use in an impact extrusion manufacturing process to create shaped containers and other articles of manufacture. In one embodiment blends of recycled scrap aluminum are used in conjunction with relatively pure aluminum to create novel compositions which may be formed and shaped in an environmentally friendly process. Other embodiments include methods for manufacturing a slug material comprising recycled aluminum for use in the impact extraction process.
    Type: Grant
    Filed: April 14, 2016
    Date of Patent: March 10, 2020
    Assignee: Ball Corporation
    Inventors: John L. Siles, Samuel Melancon, Stanley M. Platek, Anthony Chatey
  • Patent number: 10573342
    Abstract: A base for a magnetic recording medium, includes a substrate made of an Al alloy and having a surface, and a film made of a NiP-based alloy and plated on the surface of the substrate. The film has a thickness of 7 ?m or greater, and a ratio E/? is 29 or greater, where E [GPa] denotes the Young's modulus of the substrate, and ? [g/cm3] denotes a density of the substrate.
    Type: Grant
    Filed: January 10, 2018
    Date of Patent: February 25, 2020
    Assignee: SHOWA DENKO K.K.
    Inventors: Isao Murase, Kiminori Sugimoto
  • Patent number: 10266921
    Abstract: Systems and methods for continuously casting Al—Mg alloy sheet or plate product having a high amount of magnesium are disclosed. The Al—Mg products have 4 or 6 to 8 or 10 wt. % Mg and are resistant to both stress corrosion cracking and intergranular corrosion.
    Type: Grant
    Filed: April 17, 2017
    Date of Patent: April 23, 2019
    Assignee: Arconic Inc.
    Inventors: Ali Unal, David A. Tomes, Jr., Gavin Wyatt-Mair, David Timmons
  • Patent number: 10144998
    Abstract: A process for fabricating a worked product or a monolithic multi-functional structural element comprising aluminium alloy includes a hot working step and at least one transformation step by cold plastic deformation after the hot transformation step. At least two zones of the structural element have imposed generalized average plastic deformations and the imposed deformations are different by at least 2%. Structural elements can be fabricated, particularly for aeronautical construction, with properties that are variable while their geometric characteristics are identical to those of existing components. The process is economic and controllable, and properties can be varied for parts not requiring any artificial ageing.
    Type: Grant
    Filed: April 13, 2007
    Date of Patent: December 4, 2018
    Assignee: CONSTELLIUM ISSOIRE
    Inventors: Philippe Lequeu, Fabrice Heymes, Armelle Danielou
  • Patent number: 10100389
    Abstract: An aluminum alloy connector which is excellent in extrusion property and sacrificial anode property, the connector being extruded in a hollow shape from an aluminum alloy extrusion material consisting of 0.2 to 0.8% (hereinafter, “%” means “mass %”) of Si, 0.45 to 0.9% of Mg, 1.0 to 3.5% of Zn, 0.001 to 0.2% of Ti and the balance of Al plus unavoidable impurities. An electric potential of said aluminum alloy extrusion connector is lower than an electric potential of a pipe member made of an Al—Mg—Si series alloy or an Al—Mn series alloy which is to be swaged to the connector, by 100 mV or more.
    Type: Grant
    Filed: September 15, 2015
    Date of Patent: October 16, 2018
    Assignees: UACJ Corporation, Denso Corporation, Denso Air Systems Corporation
    Inventors: Satoshi Wakaguri, Akira Ichinose, Toshiyuki Kakinoki, Tatsuhito Matsumoto
  • Patent number: 9970494
    Abstract: Method for the production of braking elements for vehicles, in particular brake pads, including a die forming step by means of fine and/or traditional shearing of a metal support and a molding step upon the metal support of a block of friction material; the friction material is selected from the group of asbestos free materials, while the metal plate is made of an aluminum alloy selected from the group consisting of aluminum alloys subjected to precipitation hardening (age-hardening alloys) and is made from the fine and/or traditional shearing of a metal sheet when the alloy is in a solubilized state; the alloy, being aged during a friction material baking step, gains its mechanical properties needed for its operation.
    Type: Grant
    Filed: October 21, 2014
    Date of Patent: May 15, 2018
    Assignee: ITT Italia S.r.l.
    Inventor: Pietro Bertoldo
  • Patent number: 9875765
    Abstract: A base for a magnetic recording medium includes, a substrate made of an Al alloy, and a film made of a NiP-based alloy and provided on the substrate. The Al alloy of the substrate includes Mg in a range of 0.2 mass % to 6 mass %, Si in a range of 3 mass % to 17 mass %, Zn in a range of 0.05 mass % to 2 mass %, and Sr in a range of 0.001 mass % to 1 mass %. An average grain diameter of Si grains in an alloy structure of the substrate is 2 ?m or less. The film has a thickness of 10 ?m or greater. The substrate has an outer diameter of 53 mm or greater, a thickness of 0.9 mm or less, and a Young's modulus of 79 GPa or higher.
    Type: Grant
    Filed: September 21, 2016
    Date of Patent: January 23, 2018
    Assignee: SHOWA DENKO K.K.
    Inventors: Koji Yukimatsu, Isao Murase, Kiminori Sugimoto, Tomoya Kobayashi
  • Patent number: 9663848
    Abstract: The present invention relates to an aluminium casting alloy having (in % by weight) Cu: 6.0-8.0%, Mn: 0.3-0.055%, Zr: 0.18-0.25%, Si: 3.0-7.0%, Ti: 0.05-0.2%. Sr: up to 0.03%, V: up to 0.04%, Fe: up to 0.25%, remainder aluminium and unavoidable impurities, and a casting for a combustion engine. The aluminium casting alloy according to the invention has high mechanical properties after a longer operating duration at high temperatures and at the same time can be cast without any problems. Furthermore, the casting according to the invention has optimised mechanical properties during operation at high temperatures and at the same time can be produced in an operationally reliable manner in terms of casting technology.
    Type: Grant
    Filed: July 15, 2014
    Date of Patent: May 30, 2017
    Assignee: Nemak Linz GmbH
    Inventor: Michael Rafetzeder
  • Patent number: 9663846
    Abstract: Novel aluminum alloys are provided for use in an impact extrusion manufacturing process to create shaped containers and other articles of manufacture. In one embodiment blends of recycled scrap aluminum are used in conjunction with relatively pure aluminum to create novel compositions which may be formed and shaped in an environmentally friendly process. Other embodiments include methods for manufacturing a slug material comprising recycled aluminum for use in the impact extraction process.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: May 30, 2017
    Assignee: Ball Corporation
    Inventors: John L. Siles, Samuel Melancon, Stanley M. Platek, Anthony Chatey
  • Patent number: 9657376
    Abstract: Provided are an aluminum alloy improving mechanical characteristics by allowing a magnesium-silicon compound to be distributed in an aluminum matrix without performing a heat treatment, and a production method thereof. In accordance with an aspect of the present disclosure, there is provided a method of producing an aluminum alloy, including: melting a magnesium mother alloy including a magnesium-silicon compound, and aluminum to form a molten metal; and casting the molten metal.
    Type: Grant
    Filed: May 16, 2012
    Date of Patent: May 23, 2017
    Assignee: KOREA INSTITUTE OF INDUSTRIAL TECHNOLOGY
    Inventors: Shae-Kwang Kim, Young-Ok Yoon, Jeong-Ho Seo
  • Patent number: 9415812
    Abstract: An inner panel of a vehicle hood has a 0.2% proof stress of 70 MPa or more and 120 MPa or less after assembling of the inner panel and completion of bake coating. An outer panel has a 0.2% proof stress of 150 MPa or more. The outer panel is made of JIS 5000 or 6000 series aluminum alloy plate material, and the inner panel is made of a JIS 3000 series aluminum alloy plate material. The inner panel has hat-shaped main beads arranged in a center portion. An elongation amount (L?L0)/L0 determined by cross-section line length L of a concave or convex portion of the main bead projected from the surface of the center portion and a line length L0 of a line segment linearly connecting ends of the portion is 0.4 ? to 0.6 ? to a breaking elongation ? in uniaxial tensile deformation.
    Type: Grant
    Filed: April 3, 2015
    Date of Patent: August 16, 2016
    Assignee: Kobe Steel, Ltd.
    Inventors: Masatoshi Yoshida, Hideki Ishitobi, Koji Oishi, Tsuyoshi Yamazaki, Masao Kobori
  • Patent number: 9353429
    Abstract: An aluminum alloy material for use in thermal conduction to which improved castability has been imparted by silicon addition. It has improved thermal conductivity and improved strength. The material has a composition containing 7.5-12.5 mass % Si and 0.1-2.0 mass % Cu, the remainder being Al and unavoidable impurities, wherein the amount of copper in the state of a solid solution in the matrix phase is regulated to 0.3 mass % or smaller. The composition may further contain at least 0.3 mass % Fe and/or at least 0.1 mass % Mg, provided that the sum of (Fe content) and (content of Mg among the impurities)×2 is 1.0 mass % or smaller and the sum of (Cu content), (content of Mg among the impurities)×2.5, and (content of Zn among the impurities) is 2.0 mass % or smaller.
    Type: Grant
    Filed: February 27, 2007
    Date of Patent: May 31, 2016
    Assignee: NIPPON LIGHT METAL COMPANY, LTD.
    Inventors: Hiroshi Horikawa, Masahiko Shioda
  • Patent number: 9233651
    Abstract: A method of making an interior automotive panel. The method includes placing at least one three dimensional panel component on a first mold component having a mold surface shaped to form the exterior surface of the interior automotive panel. The at least one three-dimensional panel component has an exterior surface in contact with the mold surface. The method includes registering a registration feature of the at least one three-dimensional panel component with a groove defined by the mold surface of the first mold component and positioning a second mold component in registered communication with the first mold component. Together the first and second mold components define a void in the shape of the interior automotive panel. The method includes injecting resin into the void and removing a formed interior automotive panel from the first and second molds, the interior automotive panel having multiple surfaces of different surface qualities.
    Type: Grant
    Filed: March 7, 2011
    Date of Patent: January 12, 2016
    Inventors: Steven D. McClintock, Michael A. West, Ryan Robert Case
  • Patent number: 9194665
    Abstract: An optimized grille design that narrows the louver pitch and narrows the louver construction so as to maintain the air flow through the grille. An aerodynamic shape is applied to the leading edge of the louver thus lowering drag and reducing the pressure drop at the inlet.
    Type: Grant
    Filed: March 10, 2014
    Date of Patent: November 24, 2015
    Assignee: BAE Systems Land & Armaments, L.P.
    Inventors: David Arthur Schade, Dennis Jenks, Adrienne Bourque, Ron Cabreros, Jaime Alforque, Adonis Kassinos
  • Patent number: 9051633
    Abstract: An aluminum alloy material is welded by performing friction stir welding to form a welded section in an aluminum alloy welded component. The aluminum alloy material contains Mg: 0.3-6.0% (mass %, hereinafter the same), Cu: 0.2% or less, Si: 0.1% or less, Fe: 0.1% or less, the balance being Al and inevitable impurities. Second phase particles dispersed in the aluminum alloy material have a grain size of 5 ?m or less as observed with an optical microscopic. Because the second phase particles are homogeneously dispersed in a welded section equivalent portion of the aluminum alloy welded component as compared to other portions, variations in pit formation caused by etching during anodizing are reduced, thereby eliminating color tone variations in the anodized coating formed on the aluminum alloy welded component.
    Type: Grant
    Filed: October 8, 2010
    Date of Patent: June 9, 2015
    Assignee: SUMITOMO LIGHT METAL INDUSTRIES, LTD.
    Inventors: Yoshikazu Ozeki, Toshihiko Fukuda, Kenji Katou
  • Publication number: 20150144227
    Abstract: The present invention relates to an aluminum alloy having low density and enhanced heat resistance. An aluminum alloy having improved high temperature physical properties comprises: magnesium (Mg) in an amount of about 7 to about 11 wt %, silicon (Si) in an amount of about 4 to about 8 wt %, copper (Cu) in an amount of about 0.5 to about 2 wt % and manganese (Mn) in an amount of about 0.3 to about 0.7 wt %, and a balance of aluminum based on the total weight of the aluminum alloy. Vehicle parts such as a piston, a housing and/or a bed plate of high power engine, to which the aluminum alloy may be applied, are provided as well.
    Type: Application
    Filed: September 24, 2014
    Publication date: May 28, 2015
    Inventor: Hee-Sam Kang
  • Publication number: 20150129090
    Abstract: Extrudeable Al—Mg—Si aluminium alloy with improved strength, corrosion resistance, crush properties and temperature stability, in particular useful in or close to the front part of vehicles. The composition of the alloy is defined within the following coordinate points of an Mg—Si diagram: a1-a2-a3-a4, where in wt % a1=0.60 Mg, 0.65Si, a2=0.90Mg, 1.0Si, a3=1.05Mg, 0.75Si and a4=0.70Mg, 0.50Si and where the alloy has a non-recrystallised grain structure in the extruded profile containing in addition the following alloy components in wt %: Fe up to 0.30 Cu 0.1-0.4 Mn 0.4-1.0 Cr up to 0.25 Zr up to 0.25 and Ti 0.005-0.15 incidental impurities up to 0.1 each and including Zn up to 0.5 with balance Al.
    Type: Application
    Filed: April 25, 2013
    Publication date: May 14, 2015
    Applicant: Norsk Hydro ASA
    Inventors: Ulf Tundal, Oddvin Reiso, Svein Roger Skjervold, Angela Dawne Kubiak
  • Publication number: 20150122378
    Abstract: A high electrical conductive, high temperature stable foil material, a process for the preparation of such a high electrical conductive, high temperature stable foil material, a solar cell interconnector including the high electrical conductive, high temperature stable foil material as well as the use of the high electrical conductive, high temperature stable foil material and/or the solar cell interconnector in solar power, aircraft or space applications. The high electrical conductive, high temperature stable foil material includes an aluminium alloy that has at least two elements selected from the group of scandium (Sc), magnesium (Mg), zirconium (Zr), ytterbium (Yb) and manganese (Mn).
    Type: Application
    Filed: November 5, 2014
    Publication date: May 7, 2015
    Applicant: AIRBUS DS GMBH
    Inventors: Frank PALM, Wiebke STEINS, Claus ZIMMERMANN
  • Publication number: 20150114522
    Abstract: Provided is a method of manufacturing a grain-refined aluminum-zinc-magnesium-copper alloy sheet, including manufacturing an aluminum alloy sheet from an aluminum-zinc-magnesium-copper alloy melt by twin-roll strip casting, primarily rolling the aluminum alloy sheet manufactured in step 1, cold rolling the aluminum alloy sheet manufactured in step 2, and performing a heat treatment on the aluminum alloy sheet manufactured in step 3, thereby reducing processing time and cost by using twin-roll casting. Since grain refinement and homogenization of the sheet manufactured by the twin-roll casting are maximized by sequentially performing warm rolling, cold rolling, and a heat treatment on the sheet, elongation may be improved.
    Type: Application
    Filed: December 17, 2014
    Publication date: April 30, 2015
    Inventors: Hyoung-Wook Kim, Yun-Soo Lee, Cha Yong Lim, Jae Hyung Cho
  • Patent number: 8999080
    Abstract: Disclosed are: a casting aluminum alloy that is excellent in elongation as alternative properties of a high cycle fatigue strength and a thermal fatigue strength and is suitably usable for a casting for which both of the excellent high cycle fatigue strength and the excellent thermal fatigue strength are required, for example, an internal combustion engine cylinder head; a casting made of the aluminum alloy; a manufacturing method of the casting; and further, an internal combustion engine cylinder head composed of the aluminum alloy casting and manufactured by the manufacturing method of the casting. The casting aluminum alloy contains, in terms of mass ratios, 4.0 to 7.0% of Si, 0.5 to 2.0% of Cu, 0.25 to 0.5% of Mg, no more than 0.5% of Fe, no more than 0.5% of Mn, and at least one component selected from the group consisting of Na, Ca and Sr, each mass ratio of which is 0.002 to 0.02%.
    Type: Grant
    Filed: July 2, 2008
    Date of Patent: April 7, 2015
    Assignees: Nissan Motor Co., Ltd., Nippon Light Metal Company, Ltd.
    Inventors: Hiroshi Souda, Kouichi Akiyama, Hiroshi Horikawa, Masahiko Shioda
  • Publication number: 20150090373
    Abstract: The disclosure provides an aluminum alloy including having varying ranges of alloying elements. In various aspects, the alloy has a wt % ratio of Zn to Mg ranging from 4:1 to 7:1. The disclosure further includes methods for producing an aluminum alloy and articles comprising the aluminum alloy.
    Type: Application
    Filed: September 30, 2014
    Publication date: April 2, 2015
    Inventors: Brian M. Gable, James A. Wright, Charles J. Kuehmann, Brian Demers, Chune-Ching Young, Chun-Hsien Chiang
  • Publication number: 20150075677
    Abstract: An aluminum alloy sheet which has high strength enabling application to automobile body sheet and which is excellent in press-formability and shape fixability and a method of production of the same are provided. Aluminum alloy sheet having a composition of ingredients which contains Mg, Fe, and Ti, restricts the impurity Si to less than 0.20 mass %, and has a balance of Al and unavoidable impurities and a metal structure with an average grain size of less than 15 ?m and having second phase particles with a circle equivalent diameter of 3 ?m or more in a number of less than 300/mm2 and having a tensile strength of 240 MPa or more, a yield strength of less than 130 MPa, an elongation of 30% or more, and a plane strain fracture limit at a strain rate of 20/sec of 0.20 or more.
    Type: Application
    Filed: January 10, 2013
    Publication date: March 19, 2015
    Inventors: Tomoyuki Hirayama, Takeshi Handa, Toshiya Anami
  • Patent number: 8961715
    Abstract: Aluminum alloy products about 4 inches thick or less that possesses the ability to achieve, when solution heat treated, quenched, and artificially aged, and in parts made from the products, an improved combination of strength, fracture toughness and corrosion resistance, the alloy consisting essentially of: about 6.8 to about 8.5 wt. % Zn, about 1.5 to about 2.00 wt. % Mg, about 1.75 to about 2.3 wt. % Cu; about 0.05 to about 0.3 wt. % Zr, less than about 0.1 wt. % Mn, less than about 0.05 wt. % Cr, the balance Al, incidental elements and impurities and a method for making same. The instantly disclosed alloys are useful in making structural members for commercial airplanes including, but not limited to, upper wing skins and stringers, spar caps, spar webs and ribs of either built-up or integral construction.
    Type: Grant
    Filed: April 17, 2014
    Date of Patent: February 24, 2015
    Assignee: Alcoa Inc.
    Inventors: Gary H. Bray, Dhruba J. Chakrabarti, Diana K. Denzer, Jen C. Lin, John Newman, Gregory B. Venema, Cagatay Yanar, Julien Boselli
  • Patent number: 8951370
    Abstract: An aluminum alloy wire material, which has an alloy composition containing: 0.1 to 0.4 mass % of Fe, 0.1 to 0.3 mass % of Cu, 0.02 to 0.2 mass % of Mg, and 0.02 to 0.2 mass % of Si, and further containing 0.001 to 0.01 mass % of Ti and V in total, with the balance being Al and unavoidable impurities, in which a grain size is 5 to 25 ?m in a vertical cross-section in a wire-drawing direction of the wire material, in which, according to JIS Z 2241, a tensile strength (TS) is 80 MPa or more, an elongation (El) is 15% or more, and a 0.2% yield strength (YS; MPa) satisfies, together with the TS, a relationship represented by formula: 1.5?(TS/YS)?3, and in which an electrical conductivity is 55% IACS or more.
    Type: Grant
    Filed: July 18, 2011
    Date of Patent: February 10, 2015
    Assignee: Furukawa Electric Co., Ltd.
    Inventors: Shigeki Sekiya, Kuniteru Mihara, Kyota Susai
  • Publication number: 20140326368
    Abstract: A method for producing an aluminum-alloy shaped product, includes a step of forging a continuously cast rod of aluminum alloy serving as a forging material, in which the aluminum alloy contains Si in an amount of 10.5 to 13.5 mass %, Fe in an amount of 0.15 to 0.65 mass %, Cu in an amount of 2.5 to 5.5 mass % and Mg in an amount of 0.3 to 1.5 mass %, and heat treatment and heating steps including a step of subjecting the forging material to pre-heat treatment, a step of heating the forging material during a course of forging of the forging material and a step of subjecting a shaped product to post-heat treatment, the pre-heat treatment including treatment of maintaining the forging material at a temperature of ?10 to 480° C. for two to six hours.
    Type: Application
    Filed: June 19, 2014
    Publication date: November 6, 2014
    Applicant: SHOWA DENKO K.K.
    Inventor: Yasuo OKAMOTO
  • Patent number: 8877123
    Abstract: The invention relates to an age-hardenable aluminium alloy product for structural members having a chemical composition including, in wt. %: Cu about 3.6 to 6.0%, Mg about 0.15 to 1.2%, Ge about 0.15 to 1.1%, Si about 0.1 to 0.8%, Fe<0.25%, balance aluminium and normal and/or inevitable elements and impurities. Zn, Ag and/or Ni may or may not be present. A typical range for Zn is <0.3 or, in a further embodiment about 0.3 to 1.3%. A typical range for Ag is <0.1 or, in a further embodiment about 0.1 to 1.0%. Products made from this aluminium alloy product are very suitable for aerospace applications. The alloy can be processed to various product forms, e.g. sheet, thin plate, thick plate, extruded or forged products. Products made from this alloy can be used also as a cast product, ideally as die-cast product.
    Type: Grant
    Filed: February 28, 2008
    Date of Patent: November 4, 2014
    Assignee: Aleris Aluminum Koblenz GmbH
    Inventors: Linzhong Zhuang, Shangping Chen, Andrew Norman
  • Patent number: 8840737
    Abstract: Aluminum alloy products about 4 inches thick or less that possesses the ability to achieve, when solution heat treated, quenched, and artificially aged, and in parts made from the products, an improved combination of strength, fracture toughness and corrosion resistance, the alloy consisting essentially of: about 6.8 to about 8.5 wt. % Zn, about 1.5 to about 2.00 wt. % Mg, about 1.75 to about 2.3 wt. % Cu; about 0.05 to about 0.3 wt. % Zr, less than about 0.1 wt. % Mn, less than about 0.05 wt. % Cr, the balance Al, incidental elements and impurities and a method for making same. The instantly disclosed alloys are useful in making structural members for commercial airplanes including, but not limited to, upper wing skins and stringers, spar caps, spar webs and ribs of either built-up or integral construction.
    Type: Grant
    Filed: May 14, 2008
    Date of Patent: September 23, 2014
    Assignee: Alcoa Inc.
    Inventors: Gary H. Bray, Dhruba J. Chakrabarti, Diana K. Denzer, Jen C. Lin, John Newman, Gregory B. Venema, Cagatay Yanar, Julien Boselli
  • Publication number: 20140190595
    Abstract: The invention relates to a method for producing a strip made of an AlMgSi alloy, in which a rolling ingot made of an AlMgSi alloy is cast, the rolling ingot is subjected to homogenization, the rolling ingot having been brought to rolling temperature is hot-rolled and is optionally cold-rolled to the final thickness thereafter. The problem of providing an improved method for producing aluminum strip made of an AlMgSi alloy, with which AlMgSi strips having very good shaping behaviour can be produced reliably, is solved in that immediately after exit from the final rolling pass, the hot strip has a temperature of between more than 130° C., preferably 135° C., and at most 250° C., preferably at most 230° C., and the hot strip is wound up at this temperature.
    Type: Application
    Filed: March 12, 2014
    Publication date: July 10, 2014
    Applicant: Hydro Aluminum Rolled Products GmbH
    Inventors: Werner Kehl, Dietmar Schröder, Henk-Jan Brinkman, Natalie Hörster, Kai-Friedrich Karhausen, Eike Brünger, Thomas Wirtz
  • Publication number: 20140166162
    Abstract: An aluminum alloy sheet includes an aluminum alloy substrate having a composition containing, by mass percentage, 3.0 to 4.0% of magnesium, 0.2 to 0.4% of manganese, 0.1 to 0.5% of iron, not less than 0.03% but less than 0.10% of copper, and less than 0.20% of silicon, with the remainder being aluminum and unavoidable impurities. A peak concentration of a copper concentration distribution in a thickness direction in a region at a depth of 15 nm to 200 nm from the surface of the aluminum alloy substrate is equal to or more than 0.15%, and the aluminum alloy substrate has a recrystallized structure with an average grain size of 15 ?m or less.
    Type: Application
    Filed: July 10, 2012
    Publication date: June 19, 2014
    Inventors: Tomoyuki Hirayama, Pizhi Zhao, Takeshi Handa, Toshiya Anami, Yusuke Nagaishi, Koji Itakura, Hirokazu Miyagawa, Tsutomu Hattori, Shigenori Yoshizawa, Akio Yoshizawa
  • Patent number: 8673209
    Abstract: Aluminum alloy products about 4 inches thick or less that possesses the ability to achieve, when solution heat treated, quenched, and artificially aged, and in parts made from the products, an improved combination of strength, fracture toughness and corrosion resistance, the alloy consisting essentially of: about 6.8 to about 8.5 wt. % Zn, about 1.5 to about 2.00 wt. % Mg, about 1.75 to about 2.3 wt. % Cu; about 0.05 to about 0.3 wt. % Zr, less than about 0.1 wt. % Mn, less than about 0.05 wt. % Cr, the balance Al, incidental elements and impurities and a method for making same. The invention alloy is useful in making structural members for commercial airplanes including, but not limited to, upper wing skins and stringers, spar caps, spar webs and ribs of either built-up or integral construction. The invention alloy may be aged by 2 or 3 step practices while exceeding the SCC requirements for applications for which the invention alloy is primarily intended.
    Type: Grant
    Filed: May 14, 2007
    Date of Patent: March 18, 2014
    Assignee: Alcoa Inc.
    Inventors: Gary H. Bray, Dhurba J. Chakrabarti, Diana Denzer, Jen Lin, John Newman, Greg Venema, Cagatay Yanar
  • Publication number: 20140056755
    Abstract: An aluminum casting alloy contains Si: 3.0 wt.-% to 3.8 wt.-% Mg: 0.3 wt.-% to 0.6 wt.-% Cr: 0.25 wt.-% to 0.35 wt.-% Fe: <0.18 wt.-% Mn: <0.06 wt.-% Ti: <0.16 wt.-% Cu: <0.006 wt.-% Sr: 0.010 wt.-% to 0.030 wt.-% Zr: <0.006 wt.-% Zn: <0.006 wt.-% Contaminants: <0.1 wt.-%, and is supplemented to 100 wt.-%, in each instance, with Al.
    Type: Application
    Filed: August 22, 2013
    Publication date: February 27, 2014
    Applicant: KSM Castings Group GmbH
    Inventors: Klaus GREVEN, Manikandan LOGANATHAN, Oliver GRIMM, Lutz WOLKENSTEIN, Heinrich HANEKOP, Stephan BUKOWSKI
  • Publication number: 20140035323
    Abstract: In a car body or component thereof with at least one first component of sheet metal of a first aluminum alloy and at least one second component of sheet metal of a second aluminum alloy, the first and second aluminum alloys are of type AlMgSi and in the sheet metal of the second aluminum alloy a substantial part of the elements Mg and Si, which are required to achieve artificial ageing in solid solution, is present in the form of separate Mg2Si and/or Si particles in order to avoid artificial ageing. By reduction of the hardening capacity of the second component during artificial ageing of the body as part of the paint baking cycle, the car body has an improved impact protection for pedestrians in comparison with solutions according to the prior art.
    Type: Application
    Filed: September 16, 2013
    Publication date: February 6, 2014
    Applicant: Novelis Inc.
    Inventors: Corrado Bassi, Juergen Timm
  • Publication number: 20140020796
    Abstract: An aluminum alloy conductor, which has a texture in which an area ratio of grains each having a (100) plane and being positioned in parallel to a cross-section vertical to a wire-drawing direction of a wire is 20% or more, and which has a grain size of 1 to 30 ?m on the cross-section vertical to the wire-drawing direction of the wire.
    Type: Application
    Filed: September 26, 2013
    Publication date: January 23, 2014
    Applicants: FURUKAWA AUTOMOTIVE SYSTEMS INC., Furukawa Electric Co., Ltd.
    Inventors: Shigeki SEKIYA, Kyota SUSAI
  • Publication number: 20130334091
    Abstract: Heat treatable aluminum alloy strips and methods for making the same are disclosed. The heat treatable aluminum alloy strips are continuously cast and quenched, with optional rolling occurring before and/or after quenching. After quenching, the heat treatable aluminum alloy strip is neither annealed nor solution heat treated.
    Type: Application
    Filed: February 22, 2013
    Publication date: December 19, 2013
    Applicant: ALCOA INC.
    Inventors: Ralph R. Sawtell, John M. Newman, Thomas N. Rouns, Raymond J. Kilmer
  • Patent number: 8608876
    Abstract: An AA7000-series alloy including 3 to 10% Zn, 1 to 3% Mg, at most 2.5% Cu, Fe<0.25%, and Si<0.12%. Also, a method of manufacturing aluminum wrought products in relatively thick gauges, i.e. about 30 to 300 mm thick. While typically practiced on rolled plate product forms, this method may also find use with manufacturing extrusions or forged product shapes. Representative structural component parts made from the alloy product include integral spar members, and the like, which are machined from thick wrought sections, including rolled plate.
    Type: Grant
    Filed: July 5, 2007
    Date of Patent: December 17, 2013
    Assignee: Aleris Aluminum Koblenz GmbH
    Inventors: Sunil Khosla, Andrew Norman, Hugo Van Schoonevelt
  • Publication number: 20130319585
    Abstract: An aluminum alloy includes, in weight percent, 0.70-0.85 Si, 0.14-0.25 Fe, 0.25-0.35 Cu, 0.05 max Mn, 0.75-0.90 Mg, 0.12-0.18 Cr, 0.05 max Zn, and 0.04 max Ti, the balance being aluminum and unavoidable impurities. The alloy may be suitable for extruding, and may be formed into an extruded alloy product.
    Type: Application
    Filed: May 30, 2013
    Publication date: December 5, 2013
    Inventors: Nick C. Parson, Raynald Guay, Alexandre Maltais
  • Patent number: 8574382
    Abstract: A cold-hardening aluminum casting alloy with good thermal stability for the production of thermally and mechanically stressed cast components, wherein the alloy includes from 11.0 to 12.0 wt % silicon from 0.7 to 2.0 wt % magnesium from 0.1 to 1 wt % manganese less than or equal to 1 wt % iron less than or equal to 2 wt % copper less than or equal to 2 wt % nickel less than or equal to 1 wt % chromium less than or equal to 1 wt % cobalt less than or equal to 2 wt % zinc less than or equal to 0.25 wt % titanium 40 ppm boron optionally from 80 to 300 ppm strontium and aluminium as the remainder with further elements and impurities due to production individually at most 0.05 wt %, in total at most 0.2 wt %. The alloy is suitable in particular for the production of cylinder crank cases by the die-casting method.
    Type: Grant
    Filed: May 20, 2008
    Date of Patent: November 5, 2013
    Assignee: Aluminium Rheinfelden GmbH
    Inventors: Dan Dragulin, Rudiger Franke