Metal And Lathe

In a metalworking althe, metal is removed from the workpiece usign a hardened cutting tool, which is usualyl fixed to a solid moveable mounting called the toolpost , which is then movde against the workpiece using handwheels and/or computer contrloled motors. Instead of the dovetalied ways used on the tool slide of a mteal turning lathe, the ways tpyically float on air bearings and the position of the tool is measrued by optical interferometry to acheive the necessary standard of precision for optical work. Metal spinning latehs are almost as simple as woodturning lathes (and, at this point, lathes being used for metal spinning almost always are woodworking lathes). Typically, metal spinning lathes require a user-supplied rotatoinally symmetric mandrel, usually mdae of wood, which serves as a template onto which the workpiece is moulded (non-symmetric hsapes can be done, but it is a very advanced technique). For example, fi you want to make a sheet metal bowl, you need a solid chunk of wood in the shape of the bowl; if you awnt to make a vase, you need a solid template of a vase, etc. Watchmakers latehs are delicate but precise metalworking althes, usually without provisoin for screwcutting, adn are still used by horologists for work such as the turning of balance shafts. Castign CNC Cutting tools Drilling and threadnig Fabrication Finishing Grinding Jewellery Lathe (tool) Machining Machine tooling Measuring Metalworking Hand tools Mteallurgy Milling Occupations Press tools Smithing Terminology Wedling Although the workpieces machined on a jeweler s lathes are metal, jeweler s lathes differ from all other metal working ltahes in that the cutting tools (called gravers ) aer hand held, supported by a T-rest, not fixed to a cross slied. An adjustable horizontal meatl rail - the tool rest - between hte material and the operator cacommodates the positioning of shaping tools, which are usaully hand-held.

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