Patents Assigned to Dongyang Gangchul Co., Ltd.
  • Patent number: 7850182
    Abstract: According to the invention, in extrusion molding of a control arm of aluminum, control arm is manufactured by a variable curvature extruding process that simultaneously form straight sections and a curved section in extruding a raw material, without pressing forming that is accompanied by solution heat-treatment for forming a carrier fastening end and a bush fastening end at both ends of control arm. Therefore, since the press forming that is required in the extrusion molding of control arm is removed, the manufacturing process is simplified and the manufacturing cost is reduce. Further, the entire extrusion profile cross section of control arm has a double-hollow closed cross section to distribute loads, such that durability of a load-concentrated portion of control arm is increased and the loads can be more effectively distributed.
    Type: Grant
    Filed: September 5, 2008
    Date of Patent: December 14, 2010
    Assignees: Hyundai Mobis Co., Ltd., Hwashin Co., Dongyang Gangchul Co., Ltd.
    Inventors: Gyewon Jang, Woosik Lee, Daeup Kim, Byungcheol Park, Kaehee Oh
  • Publication number: 20100224291
    Abstract: An Al—Si—Mg-based aluminum alloy includes about 1.2 to about 1.4 wt % of Si, about 0.6 to about 0.75 wt % of Mg, about 0.8 to about 1.0 wt % of Sn, and Al and impurities as the balance on the basis of the total weight of the aluminum alloy.
    Type: Application
    Filed: January 20, 2010
    Publication date: September 9, 2010
    Applicants: HYUNDAI MOBIS CO., LTD., DONGYANG GANGCHUL CO., LTD.
    Inventors: GYEWON JANG, DAEUP KIM, WOOSIK LEE, SANGWOO PARK, KAEHEE OH
  • Publication number: 20090072506
    Abstract: According to the invention, in extrusion molding of a control arm of aluminum, control arm is manufactured by a variable curvature extruding process that simultaneously form straight sections and a curved section in extruding a raw material, without pressing forming that is accompanied by solution heat-treatment for forming a carrier fastening end and a bush fastening end at both ends of control arm. Therefore, since the press forming that is required in the extrusion molding of control arm is removed, the manufacturing process is simplified and the manufacturing cost is reduce. Further, the entire extrusion profile cross section of control arm has a double-hollow closed cross section to distribute loads, such that durability of a load-concentrated portion of control arm is increased and the loads can be more effectively distributed.
    Type: Application
    Filed: September 5, 2008
    Publication date: March 19, 2009
    Applicants: HYUNDAI MOBIS CO., LTD., HWASHIN CO., DONGYANG GANGCHUL CO., LTD.
    Inventors: Gyewon Jang, Woosik Lee, Daeup Kim, Byungcheol Park, Kaehee Oh