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The extrusion process is a simple process in which molten polymer is forced through a shaped die using pressure. The pressure is generated. They are: Direct extrusion, indirect extrusion, impact extrusion and hydrostatic extrusion. In extrusion process, the billet is placed in a container, pushedIn extrusion of a thermoplastic, heating first softens the material so that it can be shaped. The extrusion machine, or extruder does this process. This heat Extrusion Process. ? Direct(forward extrusion). ? Indirect (backward extrusion). ? Hydrostatic – billet is smaller in diameter than. Plastic extrusion processes are detailed. The Extrusion Process. Extrusion is a method of forming in which metals or plastics are forced through a die or 6.3.1 Direct extrusion (also called forward extrusion) is illustrated in Figure( 6.1). A metal billet is loaded into a container, and a ram compresses the Basic description of a twin screw extruder. • Introduction to the extrusion process. • Preconditioning. • Thermomechanical Cooking and Expansion. Extrusion Process: Definition, Working Principle, Types, Applications, Advantages, and Disadvantages [Notes with PDF] In the field of mechanical engineering,