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Metalworking
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==Forming processes== These ''forming'' processes modify metal or workpiece by deforming the object, that is, without removing any material. Forming is done with a system of mechanical forces and, especially for bulk metal forming, with heat. ===Bulk forming processes=== [[File:Drop forging Gesenkschmieden.jpg|thumb|A red-hot metal workpiece is inserted into a forging press.]] [[Plasticity (physics)|Plastic]] [[Deformation (engineering)|deformation]] involves using heat or [[pressure]] to make a workpiece more conductive to mechanical force. Historically, this and casting were done by blacksmiths, though today the process has been industrialized. In bulk metal forming, the workpiece is generally heated up. * [[Cold sizing]] * [[Extrusion]] * [[Drawing (manufacturing)|Drawing]] * [[Forging]] * [[Powder metallurgy]] * [[Friction drilling]] * [[Rolling (metalworking)|Rolling]] * Burnishing ===Sheet (and tube) forming processes=== {{See also|Sheet metal}} These types of forming process involve the application of mechanical force at room temperature. However, some recent developments involve the heating of dies and/or parts. Advancements in automated metalworking technology have made progressive die stamping possible which is a method that can encompass punching, coining, bending and several other ways below that modify metal at less cost while resulting in less scrap.<ref>{{Cite web |title=Alrouf Progressive Die Stamping {{!}} Precision Metalworking Solutions |url=https://www.alrouf.com.sa/progressive-die-stamping/ |access-date=2023-07-04 |website=Alrouf Electrical |language=en-US}}</ref> * [[Bending (metalworking)|Bending]] * [[Coining (metalworking)|Coining]] * [[Decambering]] * [[Deep drawing|Deep drawing (DD)]] * [[Foldforming]]<ref>{{cite web |last1=Lacy |first1=Sue |title=The Evolution of Foldforming |url=https://www.foldforming.org/evolution.html |website=Foldforming Hub |date=15 October 2015 |access-date=1 January 2024}}</ref> * [[Hydroforming|Hydroforming (HF)]] * [[Hot metal gas forming]] * Hot press hardening<ref name=HPH>{{Cite journal | last1 = Karbasian | first1 = H. | last2 = Tekkaya | first2 = A. E. | doi = 10.1016/j.jmatprotec.2010.07.019 | title = A review on hot stamping | journal = Journal of Materials Processing Technology | volume = 210 | issue = 15 | pages = 2103 | year = 2010 }}</ref> * [[Incremental sheet forming|Incremental forming (IF)]] * [[Metal spinning|Spinning]], [[Shear forming]] or [[Shear forming#Flow forming|Flowforming]] [[File:Metal spinning brass vase.jpg|thumb|A metal spun brass vase]] * [[Planishing]] * [[Raising (metalworking)|Raising]] * [[Roll forming]] * [[Roll bender|Roll bending]] * [[Repoussé and chasing]] * [[Rubber pad forming]] * [[Shearing (metalworking)|Shearing]] * [[Stamping (metalworking)|Stamping]] * [[Superforming|Superplastic forming (SPF)]] * Wheeling using an [[English wheel]] (wheeling machine)
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