A hybrid approach for prediction of sheet formation in twin sheet extrusion blow molding process

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Proceedings title72nd Annual Technical Conference of the Society of Plastics Engineers (ANTEC 2014): The Plastics Conference
Conference72nd Annual Technical Conference of the Society of Plastics Engineers (ANTEC 2014), April 28-30 2014, Las Vegas, Nevada, USA
AbstractThe sheet formation is the most critical stage in the Twin Sheet Extrusion Blow Molding (TSEBM) process, as the final dimensions of the blow molded part is directly related the initial extrudate sheet shape. A better understanding of the sheet swell/sag phenomena will ultimately lead to improvements in the prediction of the extrusion process, such as the optimization of both die design and processing parameters. Consequently, the development of a robust 2.5D numerical simulation tool of sheet formation in TSEBM process remains a challenging task, in order to achieve a prescribed accuracy with an optimal computational time, especially when it comes to industrial production rates featuring high Weissenberg numbers. The numerical validation, in terms of length and width distribution of the extruded sheet, is performed by comparing predicted solutions to experimental measurements obtained with different flow rates, die gap opening and extrusion time.
Publication date
PublisherSociety of Plastics Engineers
AffiliationNational Research Council Canada; Automotive and Surface Transportation
Peer reviewedYes
NPARC number23000169
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Record identifier20ef825f-6a4d-4e58-a419-48fcc81b4d46
Record created2016-06-16
Record modified2016-06-16
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