What is Metalspinning?
[[File:Repoussage.jpg|thumb|250px|{{center|A man using a lathe to do his metal spinning}}]] '''Metal spinning''' is a [[process]] where a piece of [[Metal|sheet metal]] is [[rotation|rotated]] on a [[machine]] (often a [[lathe]]) to produce an object.<ref name=Theis407>Henry Ericsson Theis, ''Handbook of Metalforming Processes'' (New York; Basel: Marcel Dekker, Inc., 1999), p. 407</ref> The object usually has the qualities of being round, hollow and [[symmetrical]].<ref name=Theis407/> Metal spinning dates back [[thousand]]s of years to [[Ancient Egypt]].<ref name=Theis407/> It is closely related to the [[potter's wheel]]. == Process == The process begins with a flat piece of metal or a metal [[cylinder]].<ref name=macurVULC>{{cite web |url=http://vulcangms.com/2014/03/25/metal-spinning-work/ |title=How does metal spinning work? |author=Matt Macur |date=25 March 2014 |publisher=Vulcan GMS U.S. |access-date=22 May 2016 |archive-date=15 April 2016 |archive-url=https://web.archive.org/web/20160415041156/http://vulcangms.com/2014/03/25/metal-spinning-work/ |url-status=dead }}</ref> It is cut to a specific size based on the size of the finished part. A form is used to create the internal shape of the spun metal part.<ref name=macurVULC/> The form is often made of [[aluminum]] or hardened [[steel]].<ref name=macurVULC/> Metal spinning used to be used for creating [[prototype]]s and where only a few parts needed to be made.<ref name=PMA>{{cite web |url=http://www.makeitmetal.com/resources/CH9_spin.htm |title=Metal Spinning |publisher=Precision Metalforming Association |access-date=22 May 2016 |archive-date=23 May 2016 |archive-url=https://web.archive.org/web/20160523055137/http://www.makeitmetal.com/resources/CH9_spin.htm |url-status=dead }}</ref> With the introduction of automatic lathes, metal spinning can be used to create a larger number of parts [[wikt:inexpensive|inexpensive]]ly.<ref name=PMA/> == References == {{reflist}} == Other websites == * [https://www.youtube.com/watch?v=FHvtieU4-7Y Metal Spinning a Bo