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Unformatted text preview: Movement is back and forth. Planer: Work fixed to a table, which moves back and forth. Tool is stationary. Usually for very large projects. Boring Mill: Horizontal and vertical mills. Used for heavy work. Precision machining of large pieces. Grinder: Bench and surface. Removes small amount of material. Gives smooth finished surface. Broaching: Like a big single stroke file. Forced through work to Make a hole the size and shape of the broach. One end usually smaller. 3. MOLDING: Plastics and extruding 4. WELDING: Pieces cut to size, brought together and welded. Weld symbols are used. Pieces individually drawn. 5. SHEET METAL: Material thickness usually uniforms. Thickness not dimensioned. Bend allowance must be calculated. 6. FORGED: Separate drawings for diemaker and machinist Draft angles necessary. 7. HELICAL INTERPOLATION: CNC function for guiding a tool movement along a helical path. X-Y-Z movement at the same time....
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This document was uploaded on 06/06/2011.
- Spring '09