hot pressing

Hot pressing is a metallurgical process where metal powders are heated and compressed to form solid parts. This method is particularly useful for metals with very high melting points, as it allows for the creation of complex shapes without needing to melt the material.12

In powder metallurgy, metal powders are pressed into a die to achieve the desired shape. Subsequently, they are sintered, which involves heating them below their melting point. This process causes the particles to bond together. When pressure is applied during sintering, a technique known as hot pressing, it results in a virtually pore-free final product. This technique is employed in various applications, from producing filaments for light bulbs to creating durable tools and components for automobiles and appliances.2