Spun aluminum
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Spun aluminum refers to a specific type of metal fabrication and production process known as metal spinning used with the metal aluminum.
In metal spinning, the forming process is accomplished by the use of a spinning lathe. The lathe resembles a woodturning lathe but is typically of a sturdier construction.
Spun alumininum is generally harder and thinner than other aluminum fabrication methods, and typically is used for cylindrically-oriented parts, fixtures, and devices. Metal spinning has often been refererd to as horizontal pottery as a means of conveying the process to a layman.