In automotive body manufacturing the dies for blanking/trimming/piercing are under most severe loading condition involving high contact stress at high impact loading and large number of cycles. With continuous increase in sheet metal strength, the trim die service life becomes a great concern for industries. In this study, competing trim die manufacturing routes were compared, including die raw materials produced by hot-working (wrought) vs. casting, edge-welding (as repaired condition) vs. bulk base metals (representing new tools), and the heat treatment method by induction hardening vs. furnace through-heating. CaldieTM, a Uddeholm trademarked grade was used as trim die material. The mechanical tests are performed using a WSU developed trimming simulator, with fatigue loading applied at cubic die specimen’s cutting edges through a tungsten carbide rod to accelerate the trim edge damage. The tests are periodically interrupted at specified cycles for measurement of die edge damage. The microstructures from different routes are examined by laser 3D confocal microscopy. The evolution of edge damage projected areas and converted volumes are used, and the fatigue performances of manufacturing routes are compared and ranked. Microstructures from different routes are analyzed for providing metallurgical explanations of mechanical testing results. Directions of further study and trim die reconditioning method for fatigue property improvement are discussed.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    A Comparative Study on Fatigue Damage of Caldie™ from Different Manufacturing Routes


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:
    Miller, Patricia (Autor:in) / Lu, Pengyan (Autor:in) / Yang, Qingyu (Autor:in) / Wu, Xin (Autor:in) / Chen, Xingyu (Autor:in)

    Kongress:

    WCX SAE World Congress Experience ; 2022



    Erscheinungsdatum :

    2022-03-29




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




    A Comparative Study on Fatigue Damage of Caldie™ from Different Manufacturing Routes

    Lu, Pengyan / Chen, Xingyu / Yang, Qingyu et al. | British Library Conference Proceedings | 2022


    A Study on the Effect on Fatigue Damage Due to Different Shipping Routes

    De Gracia, Luis C. / Tamaru, Hitoi / Osawa, Naoki et al. | Springer Verlag | 2020


    A Study on the Effect on Fatigue Damage Due to Different Shipping Routes

    Gracia, Luis C. De / Tamaru, Hitoi / Osawa, Naoki et al. | TIBKAT | 2020


    Ensure phone lines take different routes

    British Library Online Contents | 2004


    Comparative Study of Cumulative Damage to Pavement Concrete Under Splitting Tensile, Variable Amplitude Fatigue Loadings

    Yun, Kyong-Ku / Kim, Dong-Ho / Jeong, Won-Kyong et al. | Transportation Research Record | 2005