|Disclaimer: The information on this page has not been checked by an independent person. Use this information at your own risk.|Click arrows to page adverts The process of extrusion is simply forcing a billet of metal through a shaped dieto produce a continuous length of constant section similar to the die profile. Lead was the first metal to be extruded as pipe in the early 19th century. (J.Bramahs patent in 1897) The extrusion of copper really initiated the extrusion process as a high production processMaterials and SectionsAluminium and copper are most often extruded as complicated sections and pipes. Virtually all metals and alloys can be extruded. Extrusions can be solid or hollow. Extrusions can be tapered or stepped by manupulating the die during the extrusion process. Equipment/ ProcessExtrusion presses are generally hydraulically operated and the process is generally completed ina horizontal elevation. An extrusion press can have a capacity of over 200 MN for extrudingstiffer metals such as titanium or steel. Hot metal extrusion involves preheatingthe billet prior to extrusion to reduce the work required to extrude the section. |Links Providing information on Metal Extrusion||Send Comments to Roy BeardmoreLast Updated 15/01/2013