General Information Extrusions Sawing A long billet is cut at a certain length in accordance with economical production. Heating Container Dies Stem Billet Loader Stretcher Cutting Aging Extruding Aluminum alloy billets, manufactured by the melting process and preheated to some 450ยบ C, are then loaded into the container of the extrusion press. Through high pressure, these billets are extruded through various dies to form the required profile. YKK AP is currently operating over 50 extrusion presses worldwide. This gives YKK AP an extensive capacity to produce profiles of various types and groups. Effective Date: May 23, 2024 | GI-1000-07 Page-7