This paper describes the outcomes of a study that the EDMANS(**) group has recently performed in a rubber extrusion process, focusing on the knowledge discovery phase previous to the system modeling. Some of the tools developed to satisfy the special needs of such a process are also presented: the CiTree algorithm for clustering subpopulations in massive databases and the PAELLA algorithm for o...

The extrusion of rubber profiles, as used for automotive production, is a highly complex continuous production process which is strongly influenced by variability in input materials and other external conditions. The personal experience of the production line operators continues to play an important role here, as analytical models exist only for small parts of such processes, and systems for au...

In-situ TiB whisker-reinforced Ti-6Al-4V (TC4) titanium matrix composites (TiBw/TC4) with quasi-continuous networks were successfully fabricated by vacuum hot-pressing sintering. The effects of the hot-hydrostatic canned extrusion on stock utilization, microstructure and mechanical properties of the TiBw/TC4 composites were investigated. It was satisfactory that the utilization of composites co...

Abstract. Friction Stir Extrusion (FSE) is an innovative direct-recycling technology developed for metal machining chips. A rotating die plunged into a cylindrical chamber containing the material to be recycled during procedure. The die's stirring action causes strong bonding, enabling back extrusion of full dense rod. One technology's major flaws process' discontinuity, which limits volume ext...

Alginates are natural polysaccharides that are extracted from brown seaweeds and widely used for their rheological properties. The main step in the extraction protocol used in the alginate industry is that of alkaline extraction. A batch process is used for this step, which is time-, water-, and reactantconsuming. The possibility of extracting by reactive extrusion was investigated. The reactiv...

Plastic extrusion has been a challenging process for many manufacturers and researchers to produce products meeting requirements at the lowest cost. Faced with global competition in plastic-products industry, using the trial-anderror approach to determine the process parameters for plastic extrusion is no longer good enough. During production, quality characteristics may deviate due to drifting...

A method for the extrusion of arbitrary polygon meshes is introduced. This method can be applied to model a large class of complex 3-D closed surfaces. It consists of defining a (typically small) set of connected polygons in 3-D that form a skeleton of the final object, and assigning extrusion distances to all polygons. Both sides of a polygon may have different extrusion distances. An automati...