Metal spinning is a highly versatile metalworking process where a flat disc or tube of metal is rotated at high speeds and formed into an axially symmetric part. Unlike traditional wood or metal turning, this technique does not remove material, but instead moulds sheet metal over an existing shape using either manual craftsmanship or CNC lathes.
The trade dates back to antiquity, finding skilled application in Ancient Egypt before advancing significantly with hydro and steam power during the 19th century. By the early 20th century, the introduction of electric motors provided the high-speed turning capability needed to work with tougher materials like brass, copper, aluminum, and stainless steel.
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SubscribeModern commercial applications range widely from rocket nose cones and cookware to gas cylinders and brass instrument bells, while artisans continue to use it for architectural details and decorative household goods. Virtually any ductile metal can be formed, and production costs remain comparatively low due to flexible tooling options and minimal material waste.
Despite its many advantages, including the creation of strong, seamless components that withstand high pressures, the technique has limitations. If a finished part suffers a crack or a dent, it cannot be cost-effectively repaired and must be scrapped entirely.