GRINDING MACHINES

TC 9-524 Chapter 5 GRINDING MACHINESG rinding is the process of removing metal by the applicationof abrasives which are bonded to form a rotating wheel. Whenthe moving abrasive particles contact the workpiece, they actas tiny cutting tools, each particle cutting a tiny chip from theworkpiece. It is a common error to believe that grindingabrasive wheels remove material by a rubbing action; actually,the process is as much a cutting action as drilling, milling, andlathe GRINDING machine supports and rotates the grindingabrasive wheel and often supports and positions the workpiecein proper relation to the GRINDING machine is used for roughing and finishing flat,cylindrical, and conical surfaces; finishing internal cylindersor bores; forming and sharpening cutting tools; snagging orremoving rough projections from castings and stampings; andcleaning, polishing, and buffing surfaces.

abrasives (Figure 5-7). Some of the various types are listed below. Straight Straight wheels, numbers 1, 5, and 7, are commonly applied to internal, cylindrical, horizontal spindle, surface, tool, and offhand grinding and snagging. The recesses in type numbers.5 and 7 accommodate mounting flanges. Type

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