What is Metal Spinning?
The term Metal Spinning refers to a group of forming processes that allow for the production of hollow, axially symmetric sheet metal components.
Metal Spinning is one of the oldest techniques for the chip-less production of circular hollow metal components (Ozer, Sekiguchi & Arai, 2012). There has been much debate regarding the origins of Metal Spinning with historians pointing towards Ancient Egypt and China. The earliest known evidence of this skill comes from a wooden carving dating back to the Middle Ages, which depicts a man spinning vessels with the assistance of another, who is turning a large wheel.
Today, Metal Spinning looks vastly different from its ancestors with technological advancements made as a result of the industrial revolutions that have occurred throughout Britain’s history.
The technique, common to the process of metal spinning, consists of clamping sheet metal blanks against a mandrel (of the required shape and size) on a spinning lathe, and gradually forming the blanks onto said mandrel. This is performed with the use of a surface roller, either in a single step or multiple steps.
Still finding it hard to picture? Figure 1 represents a visual of the basic technique involved in Metal Spinning (Music, Allwood & Kawai, 2010). Or check out our video “Metal Spinning Brass” to get a sense of how it’s performed.
Read more: The Ultimate Guide To Metal Spinning (With Diagrams)