This content is not included in your SAE MOBILUS subscription, or you are not logged in.
Automotive Vehicle Body Temperature Prediction in a Paint Oven
ISSN: 0148-7191, e-ISSN: 2688-3627
Published April 01, 2014 by SAE International in United States
Annotation ability available
Automotive vehicle body electrophoretic (e-coat) and paint application has a high degree of complexity and expense in vehicle assembly. These steps involve coating and painting the vehicle body. Each step has multiple coatings and a curing process of the body in an oven. Two types of heating methods, radiation and convection, are used in the ovens to cure coatings and paints during the process. During heating stage in the oven, the vehicle body has large thermal stresses due to thermal expansion. These stresses may cause permanent deformation and weld/joint failure. Body panel deformation and joint failure can be predicted by using structural analysis with component surface temperature distribution. The prediction will avoid late and costly changes to the vehicle design. The temperature profiles on the vehicle components are the key boundary conditions used to perform structure analysis. This paper presents an efficient method to predict vehicle body temperature profiles as the vehicle pass through the radiant section of an e-coat and/or paint oven. Transient analysis coupled with geometry movement is used to predict the vehicle body temperature which provides a complete vehicle component temperature map for further structural simulation.
CitationWu, Y., Surapaneni, S., Srinivasan, K., and Stibich, P., "Automotive Vehicle Body Temperature Prediction in a Paint Oven," SAE Technical Paper 2014-01-0644, 2014, https://doi.org/10.4271/2014-01-0644.
- Streitberger H. and Dossel K., “Automotive Paints and Coatings”, Wiley-Vch, 1995.
- Knusel C., “Examples of CFD in Paintshops”, 1st European Automotive CFD Conference, Bingen, Germany, June 2003.
- Therdthai N., Wuttijumnong P., and Netipunya S., “Computational Fluid Dynamics Simulation of Temperature Profiles During Batch Baking”, Kasetart Journal (Nat. Sci), 42:175-181, 2008.
- Rao P. and Teeparthi S., “A Semi-computational Method to Predict Body Temperatures in an Automotive Paint Bake Oven”, Proceedings of ASME 2011 International Mechanical Engineering Congress & Exposition, Nov 11-17, 2011, Denver, Colorado, USA.
- Fettis G., “Automotive Paints and Coatings”, John Wiley & Sons, 1995.
- Mehdipour R., Ashrafizadeh A, Daun K. J., and Aghanajafi C., “Dynamic Optimization of Radiation Paint Cure Oven Using the Nominal Cure Point Criterion”, 28: 1405-1415, 2010.
- Maag K., Lenhard W., and Löffles H., “New UV Curing Systems for Automotive Application”, Process in Organic Coating 2000, 40, 93-97.
- Geipel C. and Stephan P., “Experimental Investigation of the Drying Process of Automotive Base Paints”, Applied Thermal Engineering, 2005, 25, 2578-2590.
- Zhang, W., Guo, M., Stibich, P., and Bhandarkar, R., “Vehicle Body Shell Structure Thermal Buckling Resistance Analysis,” SAE Technical Paper 2014-01-0926, 2014, doi:10.4271/2014-01-0926.
- Radtherm, ThermoAnalytics Inc.
- Churchill, S. W., 1983, “Combined free and forced convection around immersed bodies”, in Heat Exchanger Design Handbook, Vol. 3., Schlunder Ernst U., Editor in Chief, pp. 2.5.9-1 - 2.5.9-6.
- Wu Y. H., Srinivasan K., Patterson S., and Bot E., “Transient Thermal Analysis for the Automotive Underhood and Underbody Component”, Proceedings of the ASME 2013 Summer Heat Transfer Conference, Jul 14-19, 2013, Minneapolis, MN, USA.