manual spinning

manual spinning

[′man·yə·wəl ′spin·iŋ]
(metallurgy)
A sheet-metal forming process that forms the material over a rotating mandrel with little or no change in the thickness of the original blank. Also known as conventional spinning.
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References in periodicals archive ?
By 1814, manual spinning had practically disappeared throughout the country.
One of the first companies to invest in CNC technology for metal spin forming, Glenn Metalcraft (GMI) reshaped its production processes from manual spinning operations to a higher technology, automated environment specializing in heavy-gauge, oversize metal spinnings.