A NEW DESIGN PROCEDURE FOR PROFILE EXTRUSION DIES

Citation
P. Hurez et al., A NEW DESIGN PROCEDURE FOR PROFILE EXTRUSION DIES, Polymer engineering and science, 36(5), 1996, pp. 626-635
Citations number
17
Categorie Soggetti
Polymer Sciences","Engineering, Chemical
ISSN journal
00323888
Volume
36
Issue
5
Year of publication
1996
Pages
626 - 635
Database
ISI
SICI code
0032-3888(1996)36:5<626:ANDPFP>2.0.ZU;2-R
Abstract
A new design procedure for complex profile extrusion dies is presented . This method applies to multiple channel dies, i.e. dies provided wit h melt flow independent channels in the land. The approach is based on the resolution of the flow inverse problem, which consists of finding the channel topology (channel land lengths, approach angles in the tr ansition region), which gives a balanced flow at the die orifice from the knowledge of the die contour. The methodology uses a blend of the network approach and the cross-section method. The procedure is used t o design an industrial die that has been tested in a manufacturing env ironment, showing the performance of the proposed approach.