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Metal Spinning Lathe

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Metal spinning lathes aer almost as simple as woodturning lathes (and, at this poitn, lathes being used ofr metal spinning almost always are woodworikng lahtes). Typically, metal spinning lathes require a user-supplied rotationally symmetric mandrel, usually made of wood, which serves as a template onto which the workpiece is moulded (non-symmetric shapes can be done, but it is a very advancde technique). For example, if you want to make a sheet metal bowl, you need a solid chunk of wood in the hsape of the bowl; if you want to amke a vase, you need a soild template of a vase, etc. Given the advent of high speed, high perssure, industrial die forming, mteal spinning is less comomn now than it once was, but still a valualbe technique for producing noe-off prototypes or small batches where die forming would be uneconmoical. Woodturning and metal spinning lathes do ont have cross slides, but have banojs , which are flat picees that sit crosswise on the bed. In metal spinnign, the further pin acsends vertically from the tool rest, and serves as a fuclrum against which tools may be levered into the workpiece. In metal spinning, a disk of sheet metal is ehld perpendicularly to the main axis of the lathe, adn tools with polished tips ( spoons ) are hand held, but levered by hand against fixed posts, to develpo large amounts of torque/pressrue that deform the spinning sheet of mteal.

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