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Description of grinding machine

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  1. 1. Grinding is the process of removing metal by the application of abrasives which are bonded to form a rotating wheel. It is used for good surface Finishing, less grinding wheel wear, free of grinding cracks and burns. PRINCIPLE
  2. 2. CONSTRUCTION  The grinding machine consists of a power driven grinding wheel spinning at the required speed and a bed with a fixture to guide and hold the work- piece.  coolant is placed to cool the work piece so that it does not overheat and go outside its tolerance.
  3. 3. Types of grinders Belt grinder:  It is suitable for all kind of applications like finishing, deburring and stock removal.
  4. 4. Bench grinder:  Two wheels of different grain sizes for roughing and finishing operations and is secured to a workbench.
  5. 5. Cylindrical grinder
  6. 6. Surface grinder
  7. 7. USES OF GRINDING MACHINE It is used for flat ,conical and cylindrical surfaces. finishing internal cylinders or bores. forming and sharpening cutting tools snagging or removing rough projections from castings and stampings;
  8. 8. Advantages: Work is supported rigidly. Productivity is high. Less skill is needed. No chatter or deflection of work.
  9. 9. Disadvantages:  Work with several diameters cannot be handled well.  More time is involved in change over of centreless grinder.