The present invention provides a method to manufacture a torsion beam having ultra high strength. The manufacturing method comprises: a material preparing process of preparing a flat tube in which at least partial facing surfaces are parallel; a preforming process of forming the flat tube into a preform using a preforming mold; and a hydroforming process of placing the preform on the hydroforming mold, and forming the preform into a final shape of a torsion beam by adding liquid pressure.
본 발명은 적어도 일부의 마주보는 면이 평행한 평판형 튜브를 준비하는 소재준비공정; 상기 평판형 튜브를 프리포밍 금형을 이용하여 예비성형체로 성형하는 프리포밍 공정; 및, 상기 예비성형체를 하이드로포밍 금형에 안착시키고, 액압을 가하여 토션빔의 최종적인 형상으로 성형하는 하이드로포밍 공정;을 포함하는 초고강도 토션빔의 제조방법을 제공한다.
MANUFACTURING METHOD FOR TORSION BEAM HAVING ULTRA HIGH STRENGTH
초고강도 토션빔의 제조방법
2016-07-05
Patent
Elektronische Ressource
Koreanisch
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 / B60G VEHICLE SUSPENSION ARRANGEMENTS , Radaufhängungen und Federungen für Fahrzeuge |
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