Patents Assigned to Nippon Light Metal Company, Ltd.
  • Publication number: 20200353558
    Abstract: Provided is a method for manufacturing a liquid cooling jacket including a jacket body and a sealing body joined to the jacket body. The method includes steps of: preparing; placing; first primary joining with a rotary tool; and second primary joining with the rotary tool. A rotary tool includes a base end pin and a distal end pin. The distal end pin includes a flat surface and a protrusion extending from the flat surface. In the first primary joining and the second primary joining, friction stirring is performed in a state where a front surface of the sealing body is brought in contact with an outer peripheral surface of the base end pin, the sealing body is brought in contact with the flat surface of the distal end pin, and the jacket body is brought in contact with the protrusion.
    Type: Application
    Filed: August 1, 2018
    Publication date: November 12, 2020
    Applicant: NIPPON LIGHT METAL COMPANY, LTD.
    Inventors: Hisashi HORI, Nobushiro SEO, Kosuke YAMANAKA
  • Publication number: 20200359523
    Abstract: A method for manufacturing a liquid-cooling jacket (1) where heat transfer fluid flows in a hollow part (14) defined by a jacket body (2) and a sealing body (3) includes: an overlapping process in which the sealing body (3) is placed on an end surface (11a) of a peripheral wall part (11) in such a way that the end surface (11a) and a back surface of the sealing body (3) are overlapped each other to form a first overlapped part (H1); and a primary joining process in which primary joining is performed by friction stirring in such a way that a rotary tool (F1) is moved once around a recessed part (13) along the first overlapped part (H1). In the primary joining process, the first overlapped part (H1) is joined in a state where the tip side pin is in contact with only the sealing body (3) or with the jacket body (2) and the sealing body (3) while the base side pin is in contact with the sealing body (3).
    Type: Application
    Filed: May 16, 2018
    Publication date: November 12, 2020
    Applicant: NIPPON LIGHT METAL COMPANY, LTD.
    Inventors: Hisashi HORI, Nobushiro SEO, Kosuke YAMANAKA
  • Publication number: 20200353557
    Abstract: A method for manufacturing a liquid-cooling jacket (1) where heat transfer fluid flows in a hollow part (14) defined by a jacket body (2) and a sealing body (3) includes: an overlapping process in which the sealing body (3) is placed on an end surface (11a) of a peripheral wall part (11) in such a way that the end surface (11a) and a back surface of the sealing body (3) are overlapped each other to form a first overlapped part (H1); and a primary joining process in which primary joining is performed by friction stirring in such a way that a rotary tool (FD) is moved once around a recessed part (13) along the first overlapped part (H1).
    Type: Application
    Filed: May 16, 2018
    Publication date: November 12, 2020
    Applicant: NIPPON LIGHT METAL COMPANY, LTD.
    Inventors: Hisashi HORI, Nobushiro SEO, Kosuke YAMANAKA
  • Patent number: 10807188
    Abstract: A method of manufacturing a liquid-cooled jacket, includes a preparation step which includes placing a sealing body on a stepped portion to allow a step side surface and a sealing-body side surface of the sealing body to butt each other, and a primary joining step which includes allowing a primary joining rotary tool to move once around the sealing body, while moving the rotary tool along a butted portion formed in the preparation step, to carry out friction stir welding. The primary joining step includes employing the primary joining rotary tool provided with a stirring pin having a length dimension greater than a thickness dimension of the sealing body, and carrying out friction stirring with only the stirring pin being brought into contact with a jacket body and the sealing body.
    Type: Grant
    Filed: May 17, 2018
    Date of Patent: October 20, 2020
    Assignee: NIPPON LIGHT METAL COMPANY, LTD.
    Inventors: Hisashi Hori, Nobushiro Seo
  • Publication number: 20200324365
    Abstract: A method for manufacturing a liquid cooling jacket has a feature of using a primary joining rotary tool provided with a tip side pin and a base side pin having a taper angle larger than a taper angle of the tip side pin and comprising a first primary joining process in which inserting the tip side pin and the base side pin of the rotary tool that is rotating into the sealing body member and moving the rotary tool along the first abutted portion with an outer circumferential face of the base side pin being in contact with a front face of the sealing body member and with the outer circumferential face of the tip side pin being kept off a step side face of the peripheral wall step portion while having a second aluminum alloy of the sealing body member flow into the gap.
    Type: Application
    Filed: September 27, 2018
    Publication date: October 15, 2020
    Applicant: NIPPON LIGHT METAL COMPANY, LTD.
    Inventors: Hisashi HORI, Nobushiro SEO, Kosuke YAMANAKA
  • Publication number: 20200299811
    Abstract: An aluminum member includes: a substrate formed of aluminum or an aluminum alloy that contains 0 to 10% by mass of magnesium, 0.1% by mass or less of iron, and 0.1% by mass or less of silicon and a balance of which is aluminum and unavoidable impurities; and an anodic oxide coating formed on a surface of the substrate. A surface of the substrate on the anodic oxide coating side has an arithmetical mean height Sa of 0.1 to 0.5 ?m, a maximum height Sz of 0.2 to 5 ?m, and an mean width of roughness profile elements Rsm of 0.5 to 10 ?m, where the arithmetical mean height Sa, the maximum height Sz, and the mean width of roughness profile elements Rsm are measured after the anodic oxide coating is removed.
    Type: Application
    Filed: August 2, 2018
    Publication date: September 24, 2020
    Applicant: NIPPON LIGHT METAL COMPANY, LTD.
    Inventors: Yusuke SEKI, Yoshihiro TAGUCHI
  • Publication number: 20200282489
    Abstract: A heat transfer plate manufacturing method in which a tip end-side pin of a rotation tool, as rotating, is inserted into a butt part, and friction stirring is performed with an outer peripheral surface of a base end-side pin in contact with a front surfaces of a base member and a lid plate, with the base end-side pin and a flat surface in contact with the base member and the lid plate, and with a tip end surface of a protrusion part in contact with only the base member, is provided.
    Type: Application
    Filed: May 15, 2018
    Publication date: September 10, 2020
    Applicant: NIPPON LIGHT METAL COMPANY, LTD.
    Inventors: Hisashi HORI, Nobushiro SEO, Kosuke YAMANAKA
  • Publication number: 20200254556
    Abstract: Provided is a method for manufacturing a liquid cooling jacket including a jacket body and a sealing body joined to the jacket body. The method includes steps of: preparing; placing; first primary joining with a rotary tool; and second primary joining with the rotary tool. The rotary tool includes a base end pin and a distal end pin. The distal end pin includes a flat surface and a protrusion protruding from the flat surface. In the first primary joining and the second primary joining, friction stirring is performed in a state where the jacket body and the sealing body are brought in contact with the flat surface of the distal end pin and the base end pin and only the jacket body is brought in contact with a distal end surface of the protrusion.
    Type: Application
    Filed: August 16, 2018
    Publication date: August 13, 2020
    Applicant: NIPPON LIGHT METAL COMPANY, LTD.
    Inventors: Hisashi HORI, Nobushiro SEO, Kosuke YAMANAKA
  • Patent number: 10668559
    Abstract: A joining method includes abutting an end face of a first metal member in a plate shape having a projecting part on the end face on a rear face of a second metal member in a plate shape having a hole that is bored through the second metal member in a plate thickness direction and simultaneously inserting the projecting part into the hole. The method includes inserting a stirring pin of a rotary tool into an abutment portion of a wall of the hole and an outer peripheral surface of the projecting part from a front face side opposite to the rear face of the second metal member. The rotary tool is moved along the abutment portion to join the abutment portion by friction stirring. The abutment portion is joined together with only the stirring pin of the rotary tool being in contact with the first and second metal members.
    Type: Grant
    Filed: August 23, 2016
    Date of Patent: June 2, 2020
    Assignee: NIPPON LIGHT METAL COMPANY, LTD.
    Inventors: Hisashi Hori, Nobushiro Seo
  • Publication number: 20200164462
    Abstract: Provided is a method for manufacturing a liquid-cooled jacket, to reduce the size of a recessed groove on a surface of a metal member and also to reduce roughness of a jointed surface. The method includes: a placing step of placing a sealing body on a jacket body, a first main joining step of performing friction stirring by moving a main joining rotary tool around to a first overlapped portion, and a second main joining step of performing friction stirring to a second overlapped portion. The main joining rotary tool has a base-end-side pin and a tip-end-side pin. A taper angle of the base-end-side pin is greater than a taper angle of the tip-end-side pin and a stairs-like pin step portion is formed on an outer circumferential surface of the base-end-side pin.
    Type: Application
    Filed: July 20, 2018
    Publication date: May 28, 2020
    Applicant: NIPPON LIGHT METAL COMPANY, LTD.
    Inventors: Hisashi HORI, Nobushiro SEO, Kosuke YAMANAKA
  • Publication number: 20200147718
    Abstract: The present invention includes a preparation step in which a stepped portion including step bottom and step side surfaces is formed along an edge of a jacket body, a placing step in which a sealing body is placed on the jacket body forming first and second butted sections, and a main joining step in which friction stir welding (FSW) is performed by moving a rotary tool along the first butted section with only a stirring pin of the rotary tool in contact with only the sealing body. During FSW, a central axis of rotation of the rotary tool is tilted towards a central or peripheral side of the jacket body so that the angle of tilt relative to a vertical plane equals the angle the stirring pin's outer circumferential surface makes with the central axis of rotation subtracted by the angle the step side surface makes with a vertical plane.
    Type: Application
    Filed: November 20, 2017
    Publication date: May 14, 2020
    Applicant: NIPPON LIGHT METAL COMPANY, LTD.
    Inventors: Hisashi HORI, Nobushiro SEO
  • Patent number: 10642151
    Abstract: A pellicle support frame is provided with a frame body made of aluminum alloy and has a pellicle film bonded to the upper surface of the frame body and a transparent substrate bonded to the lower surface of the frame body. Within the frame body, a plurality of hollow portions are provided to be lined up in the circumferential direction of the frame body, and a through-hole which leads from the outer peripheral surface to the inner peripheral surface of the frame body is formed between two adjacent hollow portions. This configuration makes it possible to prevent strain from arising in the support frame and the transparent substrate after the support frame is bonded to the transparent substrate.
    Type: Grant
    Filed: September 9, 2015
    Date of Patent: May 5, 2020
    Assignee: NIPPON LIGHT METAL COMPANY, LTD.
    Inventor: Nobuyuki Ishito
  • Patent number: 10614961
    Abstract: An aluminum electrode in which a porous layer made of a sintered layer of aluminum powder having an average particle diameter of 1 ?m to 10 ?m is laminated in a thickness of 150 ?m to 3000 ?m on a surface of an aluminum core material is produced by chemical formation to produce an anode for an electrolytic capacitor. In this process, an organic acid immersion step of immersing the aluminum electrode in an organic acid aqueous solution containing dodecanoic acid, benzoic acid, propanedioic acid, butanedioic acid, (E)-2-butenedioic acid, 2-hydroxypropane-1,2,3-tricarboxylic acid, (E)-1-propene-1,2,3-tricarboxylic acid, or the like is carried out after a pure water boiling step and before a chemical formation step. In the chemical formation step, a phosphoric acid immersion step of immersing the aluminum electrode in an aqueous solution containing phosphate ions is carried out one or more times in the course of raising a film withstand voltage to a chemical formation voltage.
    Type: Grant
    Filed: September 20, 2016
    Date of Patent: April 7, 2020
    Assignee: NIPPON LIGHT METAL COMPANY, LTD.
    Inventors: Yuta Shimizu, Yuya Yoshida, Masahiko Katano, Shinya Sone, Masashi Mehata, Toshifumi Taira
  • Publication number: 20200091483
    Abstract: Aluminum alloy sheet for battery lid use excellent in heat radiation ability, deformation resistance, and formability, which aluminum alloy sheet for battery lid use enabling formation of an integrated explosion-proof valve with little variation in operating pressure and excellent in cyclic fatigue resistance, and a method of production of the same are provided, the aluminum alloy sheet for battery lid use for forming an integrated explosion-proof valve having a component composition containing Fe: 1.05 to 1.50 mass %, Mn: 0.30 to 0.70 mass %, Ti: 0.002 to 0.15 mass %, and B: less than 0.04 mass %, having a balance of Al and impurities, having an Fe/Mn ratio restricted to 1.8 to 3.5, restricting, as impurities, Si to less than 0.20 mass %, Cu to less than 0.03 mass %, Mg to less than 0.05 mass %, and V to less than 0.03 mass %, having a conductivity of 53.0% IACS or more, having a 0.
    Type: Application
    Filed: December 5, 2018
    Publication date: March 19, 2020
    Applicant: Nippon Light Metal Company, Ltd.
    Inventors: Yuuichi TAMAKI, Keiji KANAMORI, Daisuke SHIMOSAKA, Toshiya ANAMI
  • Publication number: 20200078883
    Abstract: Provided is a joining method that can prevent a plastic flowing material from flowing out from a butt section and that can reduce the thickness and weight of metal members. The joining method is for joining a first metal member and a second metal member by using a rotary tool comprising a stirring pin, and is characterized in that: the stirring pin comprises a flat surface perpendicular to the rotation axis of the rotary tool and comprises a protruding section protruding from the flat face; and in a friction stirring step, the flat surface is brought into contact with the first metal member and the second metal member, and a front end face of the protruding section is inserted deeper than an upper overlapping section to join an upper front butt section and the upper overlapping section.
    Type: Application
    Filed: October 12, 2017
    Publication date: March 12, 2020
    Applicant: NIPPON LIGHT METAL COMPANY, LTD.
    Inventors: Nobushiro SEO, Hisahi HORI
  • Patent number: 10518369
    Abstract: Certain embodiments relate to a heat exchanger plate capable of performing friction stir welding at a deep position of the heat exchanger plate, and improving air-tightness and water-tightness. A method may include a lid groove closing process to insert a lid plate into a lid groove formed at a periphery of a concave groove opening to a surface of a base member. The method may also include a primary joining process to perform friction stirring while relatively moving a primary joining rotary tool equipped with a stirring pin along a butting portion of a side wall of the lid groove and a side surface of the lid plate. In the primary joining process, the rotating stirring pin may be inserted into the butting portion, and the friction stirring may be performed in a state of only the stirring pin being in contact with the base member and the lid plate.
    Type: Grant
    Filed: October 16, 2017
    Date of Patent: December 31, 2019
    Assignee: NIPPON LIGHT METAL COMPANY, LTD.
    Inventors: Hisashi Hori, Nobushiro Seo
  • Patent number: 10508329
    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: October 18, 2013
    Date of Patent: December 17, 2019
    Assignee: Nippon Light Metal Company, Ltd.
    Inventors: Hiroshi Horikawa, Masahiko Shioda
  • Publication number: 20190358740
    Abstract: A jacket main body is formed of a first aluminum alloy. A seal body is formed of a second aluminum alloy. The first aluminum alloy is higher in hardness than the second aluminum alloy in material type. A method includes: a preparing step of forming on an peripheral wall part a step part having a step bottom surface and a step side surface obliquely rising; a mounting step of mounting the seal body on the jacket main body to form a first butt portion and putting the step bottom surface and a back surface of the seal body on each other to form a second butt portion; a main joining step of performing friction stir welding while only the stirring pin of the rotary tool rotating contacts with only the seal body.
    Type: Application
    Filed: June 13, 2017
    Publication date: November 28, 2019
    Applicant: NIPPON LIGHT METAL COMPANY, LTD.
    Inventors: Hisashi HORI, Nobushiro SEO
  • Patent number: 10471557
    Abstract: A method of manufacturing a liquid-cooled jacket, includes: a placing step for placing a sealing body on a jacket body; a first primary joining step for performing frictional stirring by moving a primary joining rotary tool along a first abutment portion where a step side surface of a peripheral wall stepped portion and an outer peripheral side surface of the sealing body abut on each other; and a second primary joining step for performing frictional stirring by moving the primary joining rotary tool along second abutment portions in each of which a step side surface of a columnar support stepped portion and a hole wall of a hole abut on each other.
    Type: Grant
    Filed: October 9, 2015
    Date of Patent: November 12, 2019
    Assignee: NIPPON LIGHT METAL COMPANY, LTD.
    Inventors: Hisashi Hori, Nobushiro Seo
  • Patent number: 10437142
    Abstract: A support frame for a pellicle includes a frame body made of an aluminum alloy. The frame body has: a top surface onto which a pellicle film is bonded; and an underside surface onto which a transparent substrate is bonded. A material of which the frame body is made has a Young's modulus larger than that of which the transparent substrate is made. The structure described above makes it possible to reduce deformation of the transparent substrate.
    Type: Grant
    Filed: March 2, 2016
    Date of Patent: October 8, 2019
    Assignee: NIPPON LIGHT METAL COMPANY, LTD.
    Inventors: Akira Iizuka, Koichi Nakano, Hayato Kiyomi, Kazuhiro Oda, Tomohiro Isobe