Hot pressing
Hot pressing is a process used to sinter metal powder to full density and ceramic compacts with controlled microstructures. The process involves the simultaneous application of pressure and heat to a 'green' component. Pressure is applied statically or dynamically to the heated component in one or two opposing directions along a single axis. A vacuum or controlled atmosphere is required to prevent the component reacting with air, depending on the material being processed.
During hot pressing, a mould provides the component with the desired shape. Heat can be applied directly (induction or resistance heating) or indirectly (convection or radiation).
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