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Machine tools

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  • 1. MACHINE TOOLS BY Prof. Shekhar S. Babar MECHANICAL ENGINEERING DEPARTMENT ICEM
  • 2. MACHINE TOOL  Machines used for carrying out metal cutting operations or finishing operations to impart the desired shape  Power driven machine  Functions – to hold, support , guide, work piece & tool  To give motion to w/p & tool with desired speed
  • 3. CLASSIFICATION •Purpose- 1. Single 2.Multi 3. Special •Size of chip formation Large chip size Lathe , drilling , Milling, shaping Small chip size Grinding, Lapping, Polishing, Honing
  • 4. LATHE FIRST machine tool for metal cutting Egypt Jan verbruggen-1772-U.K. Henry mandslay-1783 Lathe is a machine, which removes the metal from a piece of work to the required shape & size
  • 5. LATHE
  • 6. BASIC ELEMENTS OF LATHE  BED  HEAD STOCK  TAIL STOCK  CARRIAGE  SADDLE CROSS SLIDE, COMPOUND REST, TOOL POST, APRON  FEED MECHANISM
  • 7. LATHE
  • 8. LATHE
  • 9. LATHE OPERATION • Turning: produce straight, conical, curved, or grooved work pieces  Facing: to produce a flat surface at the end of the part or for making face grooves.  Boring: to enlarge a hole or cylindrical cavity made by a previous process or to produce circular internal grooves.  Drilling: to produce a hole by fixing a drill in the tailstock  Threading: to produce external or internal threads  Knurling: to produce a regularly shaped roughness on cylindrical surfaces
  • 10. LATHE OPERATION
  • 11. FACING & TURNING
  • 12. STEP TURNING
  • 13. TAPER TURNING
  • 14. DRILLING
  • 15. DRILLING
  • 16. BORING
  • 17. KNURLING
  • 18. THREADING
  • 19. GROOVING
  • 20. PARTING OFF
  • 21. CHAMFER