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अमूर्त

Insight on deformation of polymeric extrudate during shaping through extrusion dies using finite element method

Sujit Sharma, Arghya Deb and Santanu Chattopadhyay

Extrusion is one of the most versatile and economical process for making long rubber profile for automotive, doors, windows, medical tubing and also some tire component etc. Die swell is one of inherent phenomena in rubber industry especially during manufacturing of long rubber profiles. For geometries of the profiles which are non-symmetrical or complexly shaped, the extrudate changes in terms of the dimension as well as shape, leading towards complexity in the study of die swell behavior of the rubber compound. The rheology depends on the various parameters such as the geometry of the die, processing parameter, rheological properties, and the thermal parameter of the material. It also relies heavily on the thermal and rheological boundary conditions. Consequently, a large instability occurs during processing. The aim of the present study is to visualize the fluid flow behavior of the compound during processing using finite element analysis. The various challenging complex profile shapes which are used to manufacture automotive parts can be studied easily by using the proper material parameters as it quickly generates an indicated set of results. This will help to increase the production efficiency of the extrudate profile by reducing the traditional prototype trial, and error method of manufacturing extrusion die for getting a desired shape of the product.