Abstract
Interfacial friction plays a vital role in cold forming and forging. Since this shear force, if uncontrolled, would lead to many defects and problems, it is essential to measure this entity and to overcome it. Using spike and disc forming test, this interfacial friction is measured. A circular billet is extruded to form a spike on one side and upset to form a disc on the other. Aluminium alloy 6063 is used as the material. Simulation is carried out for various combinations of height/ diameter of the billet and for different spike diameters. The ratio of the height of the spike to the disc diameter is a measure of the friction force. This ratio is plotted to form calibration curves. Using these curves, the friction present during the cold forming process is quantified.
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