Metal Spinning Lathe

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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