This work demonstrates the feasibility of hot stamping a B-pillar outer panel from aluminum alloy 7075. AA7075 is characterized by a high strength to weight ratio with yield strengths comparable to those of DP and TRIP advanced high strength steels. Applications using AA7075 have typically been limited to the aerospace industry due to the high variable cost associated with forming and joining of these materials. A primary key to implementation in the automotive industry is the development of metal forming methods that produce non-compromised stamped parts at automotive manufacturing volumes and costs. This work explores the feasibility of die quenching a hot blank within a cold die as a means of delivering high strength aluminum sheet parts. A die made from kirksite was used to evaluate the hot stamping process for a B-pillar outer. After the forming/quenching operation, the parts were subjected to an artificial aging process to regain the properties of the T6-temper. The results show that hot stamping, followed by an adequate artificial aging treatment, produces a high strength component with material properties equivalent to the as-received T6 properties delivered by the material sheet supplier. In addition, the hot stamped B-pillar component demonstrated limited springback with a high level of dimensional accuracy.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Hot Stamping of a B-Pillar Outer from High Strength Aluminum Sheet AA7075


    Weitere Titelangaben:

    Sae Int. J. Mater. Manf
    Sae International Journal of Materials and Manufacturing


    Beteiligte:

    Kongress:

    SAE 2014 World Congress & Exhibition ; 2014



    Erscheinungsdatum :

    2014-04-01


    Format / Umfang :

    7 pages




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




    On Modeling the Hot Stamping of High Strength Aluminum Sheet

    Ilinich, Andrey / Luckey, S. George | SAE Technical Papers | 2014


    Collision Resistance of a Lightweight Center Pillar Made of AA7075-T6

    Lee, Min Sik / Moon, Young Hoon | Springer Verlag | 2021


    FRONT PILLAR OUTER

    OTSUKA KENICHIRO / AZUMA MASAFUMI / KIMOTO NAOKI | Europäisches Patentamt | 2022

    Freier Zugriff

    FRONT PILLAR OUTER

    OTSUKA KENICHIRO / AZUMA MASAFUMI / KIMOTO NAOKI | Europäisches Patentamt | 2021

    Freier Zugriff

    FRONT PILLAR OUTER

    OTSUKA KENICHIRO / AZUMA MASAFUMI / KIMOTO NAOKI | Europäisches Patentamt | 2023

    Freier Zugriff