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Mastering Grinding Processes and Techniques for Superior Finishing

Discover the art of grinding, a process using abrasive particles to achieve impeccable surface finishing. Learn about different types of abrasives, grinder forms, operations like dressing and truing, various grinding operations, different grinding machines, surface finishing techniques including lapping and polishing. Enhance your understanding of grinding to preserve wheel properties and achieve precision results.

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Mastering Grinding Processes and Techniques for Superior Finishing

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  1. Grinding • Grinding is a process which utilizes the use of abrasive particles bounded together to produce superior surface finishing • An abrasive: is a small, nonmetallic hard particle having sharp edges and an irregular shape

  2. Types of Abrasives • Conventional • Aluminum oxide • Silicon carbide • Super abrasives • Cubic boron nitride • diamond

  3. Grinder Forms cont’d

  4. Grinder Wheels

  5. Grinding Wheels • Operations done to preserve the properties of the wheel • Dressing • Truing • shaping

  6. Dressing

  7. Grinding Operations • Examples of grinding operations • Surface grinding • Cylindrical grinding • Internal grinding

  8. Grinding Machines

  9. Grinding Machines

  10. Grinding Machines

  11. Surface Finishing • Any of different processes employed for surface, edge, and corner preparation, as well as cleaning, and coating.

  12. Lapping • Finishing operation in which a loose, fine-grain abrasive in a liquid medium abrades material.

  13. Lapping cont’d • Lapping is an extremely accurate process • It corrects minor shape imperfections. • Refines surface finishes • Provides a close fit between mating surfaces. • Dimensional Tolerances = 0.00005mm

  14. Polishing • An operation to smooth off roughness from a work-piece, or put a high finish on metal by using a polishing wheel. • Polishing wheel is a wheel made of one of several kinds of materials and coated with abrasive grain and glue.

  15. Polishing cont’d

  16. Questions

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