Disclosed are a manufacturing method of a bumper beam unit for a vehicle and the bumper beam unit manufactured thereof in order to overcome a limitation of a curvature molding on both end parts of a bumper beam, and also corresponds to a required collision performance of the front lateral side of the vehicle. According to an embodiment of the present invention, the manufacturing method of the bumper beam unit for the vehicle comprises: an uncoiling step wherein an uncoiler unwinds a supplied coil on a front side of a process line; a straightening step wherein a straightener straightens a band-shaped steel sheet released from the uncoiler into a flat steel panel; a piercing step to form holes for various purposes through a brake press in the steel panel; a roll forming step of forming a roll in a shape of a bumper beam having a desired closed cross section by bending and forming the steel panel in consecutive order through a multistage roll former; a cutting step of cutting the bumper beam in accordance with the standards of the finished goods in order to commercialize the bumper beam; and a binding step of binding both ends of the closed cross section of the bumper beam. The piercing step comprises: a process of piercing a penetration hole at a specific position on the steel panel such that cut parts are formed in a predetermined shape on both ends of the bumper beam which completes the roll forming operation and the binding step; and a process of bending both end parts of the outside of the cut parts towards a rear side based on a front side of the bumper beam which corresponds to the cut parts, and binding both end parts in a state of touching both outer cut parts. The bumper beam unit manufactured by the manufacturing method has a cut part binding unit to mutually bind both cut parts based on the front side after both end parts of the rear side of the bumper beam are cut in a ′V′ shape towards the rear side.

    차량용 범퍼빔 유닛의 제조방법 및 이를 이용하여 제조되는 범퍼빔 유닛이 개시된다. 본 발명의 일 실시 예에 따른 차량용 범퍼빔 유닛의 제조방법은 공정라인 전방에서 언코일러가 공급되는 코일을 풀어주는 언코일 단계, 상기 언코일러로부터 풀려 나온 띠상의 강판을 스트레이트너가 평판의 강판패널로 펴주는 스트레이트닝 단계, 상기 강판패널에 브레이크 프레스를 통하여 여러 용도의 구멍을 성형하는 피어싱 단계, 다단의 롤 포머를 통하여 상기 강판패널을 순차적으로 절곡 성형하여 얻고자 하는 폐단면을 갖는 범퍼빔의 형상으로 롤 성형하는 롤 포밍 단계, 상기 범퍼빔을 제품화하기 위한 완성품의 규격대로 절단하는 컷팅 단계, 상기 범퍼빔의 폐단면의 양단을 접합하는 접합 단계를 포함하는 차량용 범퍼유닛의 제작 방법에 있어서, 상기 피어싱 단계는 롤 포밍 성형이 완료된 범퍼빔의 양 단부에 일정 형상으로 절개부가 형성되도록 상기 강판패널 상의 특정 위치에 관통홀을 피어싱하는 과정을 포함하고, 상기 접합 단계는 상기 절개부에 대응하는 상기 범퍼빔의 전면을 기준으로, 각 절개부 외측의 양 단부를 후방으로 절곡시켜 각 절개부의 양측 절개면을 맞댄 상태로 접합하는 과정을 포함한다. 또한, 상기 차량용 범퍼빔 유닛의 제조방법에 따라 제조된 범퍼빔 유닛에 있어서, 범퍼빔의 후방 양 단부가 후방을 향하여 "V"자 형상으로 절개된 상태에서 양측 절개면이 전면을 기준으로 상호 접합되어 절개 접합부를 형성한다.


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    Titel :

    METHOD FOR MANUFACTURING BUMPER BEAM UNIT FOR VEHICLE AND BUMPER BEAM UNIT MANUFACTURED THEREBY


    Weitere Titelangaben:

    차량용 범퍼빔 유닛의 제조방법 및 이를 이용하여 제조되는 범퍼빔 유닛


    Beteiligte:
    PARK SANG HYUN (Autor:in) / LEE MUN YONG (Autor:in)

    Erscheinungsdatum :

    03.02.2016


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Koreanisch


    Klassifikation :

    IPC:    B21D WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL , Bearbeiten oder Verarbeiten von Blechen, Metallrohren, -stangen oder -profilen ohne wesentliches Abtragen des Werkstoffs / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR



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