Unlike conventional extrusion, which operates at high temperatures to soften the metal, impact extrusion uses cold metal billets that are extruded under rapidly applied high pressure. With a single stroke, a metal slug can be forced into virtually any shape required. The process works with a wide range of components to deliver a cost efficient, high-quality result.
Because impacting is a single-stroke process, it can output quickly, cutting down lead time for production. The process is repeatable at high speed with a precision part being produced to exacting quality standards.
Although the extrusion process itself is fairly simple, the design and fabrication of the tooling is a highly skilled art. Our experience in this area is passed on to the customer in the form of tight tolerances, high strength, and industry leading parts fabrication.
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source: thelibraryofmanufacturing.com