Fiber drawing after extrusion improves mechanical robustness for high-fidelity, composite preform weaving.
While high strength materials resulting from straining generally exhibit low ductility, ECAE processing typically leads to a reduction in the ductility which is less than that resulting from conventional bulk forming processes such as rolling, drawing, and extrusion.
This chapter focuses on tribology in manufacturing processes from the viewpoint of understanding the fundamentals of sliding friction in those processes and the use of lubricants to control friction in manufacturing processes such as machining, drawing, rolling, extrusion, abrasive processes and processing at the micro and nanoscales.
Few of these applications are materials manufactured by polymer extrusion, drawing of copper wires, continuous stretching of plastic films, artificial fibers, hot rolling, wire drawing, glass fiber, metal extrusion and metal spinning etc.
Literally hundreds of metalworking processes have been developed for specific applications, but these can be divided into five broad groups: rolling, extrusion, drawing, forging, and sheet-metal forming.
Some of these applications include polymer extrusion, drawing of plastic films and wires, glass fibre and paper production, manufacture of foods, crystal growing, liquid films in condensation process, etc.
It is established from previous studies that PET/PA blends are incompatible in the isotropic state, but form so-called microfibrillar-reinforced composites upon extrusion, drawing and suitable annealing.
The degree of the reduction in load for both the drawing and extrusion processes depended on the deformation conditions and requires optimisation for industrial application.
Subsequently, the modeling of extrusion and drawing proceed by the calculation of the effective plastic strain distribution.
In contrast, the modified model is capable to study the common forming processes i.e. simple and bimetal extrusion and drawing.
Round bars or round tubes produced by traditional turning, drawing, form rolling, or extrusion, can be successively electropolished using the designed disc-form electrodes.
