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Analysis of the thinning phenomenon variations in sheet metal forming process

Abbassi, Fethi and Pantalé, Olivier and Zghal, Ali and Rakotomalala, Roger Analysis of the thinning phenomenon variations in sheet metal forming process. (2007) In: IX International Conference on Computational Plasticity, 5 September 2007 - 7 September 2007 (Barcelone, Spain).

(Document in English)

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Official URL: http://congress.cimne.com/complas07/frontal/default.asp


In many manufacturing areas such as the automotive industry (outer panels, inner panels, stiffeners etc...), the packaging industry (petfood containers, beverage cans etc...) and the household appliances industry (housings etc...), the control of the thinning variations in sheet metal forming process is a major point to study in order to ameliorate the final quality of the produced parts. In this framework, several bulge tests have been developed in order to study the thinning phenomenon during sheet metal forming processes. In this presentation, measurement of the thickness of the deformed specimens has been done using the ImageAnalyser software (based on an image analysis technique) developed by the CMAO research group in the LGP. The AISI 304L stainless steel has been selected as the tested material. Both a cylindrical and an elliptical die allowing the analysis of the thickness variation versus the load ratio and the anisotropy of sheet have been used in this work. In a second part of this communication, we present a numerical model based on the Hill 1948 anisotropic material model. The numerical results are discussed and compared with the experiments.

Item Type:Conference or Workshop Item (Speech)
Additional Information:Thanks to Complas 2007 editor. The definitive version is available in Proccedings of IX International Conference on Computational Plasticity.
HAL Id:hal-01977440
Audience (conference):International conference proceedings
Uncontrolled Keywords:
Institution:Other partners > Ecole Supérieure des Sciences et Techniques de Tunis - ESSTT (TUNISIA)
Université de Toulouse > Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE)
Laboratory name:
- Laboratory of Mechanics, Solids, Structures and Technological DevelopmentLaboratoire Génie de Production - LGP (Tarbes, France) - Conception Mécanique Assistée par Ordinateur - CMAO
Deposited On:27 Apr 2016 13:42

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