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SME MS98-262
- The Impact Of Surface Errors On Fixtured Workpiece Location And Orientation
- standard by Society of Manufacturing Engineers, 11/01/1998
- Publisher: SME
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A model is developed to predict workpiece location and orientation errors due to fixturing on datum planes that contain surface errors. The model is valid for the 3-2-1 fixturing method for prismatic workpieces and uses the tolerances on the datum surfaces as the surface error input. The maximum deviation of a workpiece which satisfies the flatness and perpendicularity tolerances on the datum planes is calculated. An example is presented.