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Development of a Canning Method for Catalytic Converters using Ultra Thin Wall Substrates
Technical Paper
2004-01-0144
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
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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Authors
Citation
Li, H., Soon, R., Bian, X., Lanzesira, J. et al., "Development of a Canning Method for Catalytic Converters using Ultra Thin Wall Substrates," SAE Technical Paper 2004-01-0144, 2004, https://doi.org/10.4271/2004-01-0144.Also In
References
- Tagomori Mauro K. Rajadurai Sivanandi “Catalytic Converter Design for Manufacturing Using Monte-Carlo Simulation” SAE Paper No. 2000-01-2878
- Variation Simulation Analysis, Electronic Data Systems (EDS)
- Bian Xiaoming Li Houliang Lanzesira Joseph “A Study on the Strength of Catalytic Converter Ultra Thin Wall Substrates” SAE Paper No. 2003-01-0662
- Locker Robert J. Sawyer Constance B. Eisenstock Gregory “Thin Film Pressure Sensor Technology Applied to Catalytic Converter Packaging”