There are benefits of using ultra thin wall (UTW) substrates (i.e., 900/2, 400/4, etc) in lowering cost and emission level. However, the more fragile mechanical characteristics of the UTW present a challenge to design and manufacture of robust catalytic converters.This paper describes a method of canning trial, where a combined Design of Experiment / Monte-Carlo analysis method was used, to develop and validate a canning method for ultra thin wall substrates.Canning trials were conducted in two stages-- Prototype Canning Trial and Production Canning Trial. In Prototype Canning Trial, the root cause of substrate failure was identified and a model for predicting substrate failure was established. Key factors affecting scrap rate and gap capability were identified and predictions were performed on scrap rate and gap capability with the allowed variations in the key factors. The results provided guidelines in designing production line and process control.In Production Canning Trial, the variations in key process factors on production line were identified. Then, predictions on scrap rate and gap capability were performed and production feasibility was confirmed.


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    Titel :

    Development of a Canning Method for Catalytic Converters using Ultra Thin Wall Substrates


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:
    Li, Houliang (Autor:in) / Lanzesira, Joseph (Autor:in) / Dawson, Pamela (Autor:in) / Beason, Richard (Autor:in) / Soon, Robin (Autor:in) / Bian, Xiaoming (Autor:in)

    Kongress:

    SAE 2004 World Congress & Exhibition ; 2004



    Erscheinungsdatum :

    2004-03-08




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




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