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1. WO2020111697 - METHOD FOR MANUACTURING TORSION BEAM

Publication Number WO/2020/111697
Publication Date 04.06.2020
International Application No. PCT/KR2019/016284
International Filing Date 25.11.2019
IPC
B23P 15/00 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
POTHER WORKING OF METAL; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
15Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
B23P 17/00 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
POTHER WORKING OF METAL; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
17Metal-working operations, not covered by a single other subclass or another group in this subclass
B23K 31/02 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
31Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by any single one of main groups B23K1/-B23K28/193
02relating to soldering or welding
C21D 1/78 2006.01
CCHEMISTRY; METALLURGY
21METALLURGY OF IRON
DMODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING, OR OTHER TREATMENTS
1General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
78Combined heat-treatments not provided for above
C21D 9/50 2006.01
CCHEMISTRY; METALLURGY
21METALLURGY OF IRON
DMODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING, OR OTHER TREATMENTS
9Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
50for welded joints
B60G 11/18 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
GVEHICLE SUSPENSION ARRANGEMENTS
11Resilient suspensions characterised by arrangement, location, or kind of springs
18having torsion-bar springs only
CPC
B21D 22/02
BPERFORMING OPERATIONS; TRANSPORTING
21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
22Shaping without cutting, by stamping, spinning, or deep-drawing
02Stamping using rigid devices or tools
B21D 5/10
BPERFORMING OPERATIONS; TRANSPORTING
21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
5Bending sheet metal along straight lines, e.g. to form simple curves
06by drawing procedure making use of dies or forming-rollers, e.g. making profiles
10for making tubes
B23K 31/02
BPERFORMING OPERATIONS; TRANSPORTING
23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
31Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
02relating to soldering or welding
B23P 15/00
BPERFORMING OPERATIONS; TRANSPORTING
23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
POTHER WORKING OF METAL; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
15Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
B23P 17/00
BPERFORMING OPERATIONS; TRANSPORTING
23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
POTHER WORKING OF METAL; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
17Metal-working operations, not covered by a single other subclass or another group in this subclass
B60G 11/18
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
GVEHICLE SUSPENSION ARRANGEMENTS
11Resilient suspensions characterised by arrangement, location or kind of springs
18having torsion-bar springs only
Applicants
  • 주식회사 포스코 POSCO [KR]/[KR]
  • 주식회사 오스템 AUSTEM CO.,LTD. [KR]/[KR]
Inventors
  • 이홍우 LEE, Hong-Woo
  • 석동윤 SEOK, Dong-Yoon
  • 신명호 SHIN, Myong-Ho
  • 사남식 SA, Nam-Sik
Agents
  • 특허법인 씨엔에스 C&S PATENT AND LAW OFFICE
Priority Data
10-2018-015252930.11.2018KR
Publication Language Korean (KO)
Filing Language Korean (KO)
Designated States
Title
(EN) METHOD FOR MANUACTURING TORSION BEAM
(FR) PROCÉDÉ DE FABRICATION D'UNE BARRE DE TORSION
(KO) 토션빔의 제조방법
Abstract
(EN)
The present invention provides a method for manufacturing a torsion beam, the method comprising: a blank preparation step for preparing a blank obtained by processing a plate material; an indented groove unit formation step for forming an indented groove unit of the torsion beam by pressing the blank towards a lower mold; a roll-up step for rolling up the blank such that opposite end portions of the blank in the width direction face each other; a planarization step, in which a protruding portion of an upper mold presses the opposite end portions in the width direction of the blank to be plastically deformed to be flat while the opposite end portions in the width direction of the blank are supported by a side cam to face each other; a welding and bonding step for bonding the planarized opposite end portions in the width direction of the blank via welding; and a quenching step for heating the welded and bonded blank within a range of 900 to 970℃ for a retaining time within a range of 1 to 20 minutes and for cooling down the blank in a treatment liquid including at least one of water and oil in a range of 20 to 90℃.
(FR)
La présente invention concerne un procédé de fabrication d'une barre de torsion, le procédé comprenant : une étape de préparation d'ébauche consistant à préparer une ébauche obtenue par traitement d'un matériau en plaque ; une étape de formation de rainure dentelée consistant à former une rainure dentelée de la barre de torsion par pression de l'ébauche vers un moule inférieur ; une étape d'enroulement consistant à enrouler l'ébauche de sorte que des parties terminales opposées de l'ébauche soient en regard dans le sens de la largeur ; une étape d’aplanissement, dans laquelle une partie saillante d'un moule supérieur presse les parties terminales opposées dans le sens de la largeur de l'ébauche afin de les déformer plastiquement pour les aplatir en même temps que les parties terminales opposées dans le sens de la largeur de l'ébauche sont soutenues par une came latérale afin qu’elles soient en regard l’une de l’autre ; une étape de soudage et de liaison consistant à lier les parties terminales opposées aplanies dans le sens de la largeur de l'ébauche par soudage ; et une étape de trempe consistant à chauffer l'ébauche soudée et liée dans une plage de 900 à 970 °C pendant un temps de retenue dans une plage de 1 à 20 minutes et à refroidir l'ébauche dans un liquide de traitement comprenant de l'eau et/ou de l'huile dans une plage de 20 à 90 °C.
(KO)
본 발명은 판재를 가공한 블랭크를 준비하는 블랭크 준비단계; 하형으로 블랭크를 가압하여 토션빔의 내입홈부를 형성하는 내입홈부 형성단계; 상기 블랭크의 폭방향 양단부가 대향되도록 말아올리는 롤업단계; 측면캠에 의해 상기 블랭크의 폭방향 양단부가 대향되도록 지지한 상태에서 상형의 돌출부분이 상기 블랭크의 폭방향 양단부를 가압하여 평탄하게 소성변형시키는 평탄화단계; 평탄화된 상기 블랭크의 폭방향 양단부를 용접 접합하는 용접접합단계; 및, 용접 접합된 상기 블랭크 전체를 900 ~ 970 도(℃) 범위에서 가열하여 1 ~ 20 분 범위의 유지시간을 형성하고, 20 ~ 90 도(℃) 범위의 물 및 오일 중 적어도 어느 하나를 포함하는 처리액에서 냉각시키는 퀜칭단계;를 포함하는 토션빔의 제조방법을 제공한다.
Also published as
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