Forging is one of the oldest metal working methods known to man. It is used to create high-strength, ultra-hard objects like tools, weapons and high-stress engine components. Rather than melting the metal stock and casting it into the shape of a mould, the raw metal billet is placed in a die and hammered into shape with a powerful hydraulic hammer.
More info on Sabre Truck cold forging process at www.sabretrucks.com