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The Boundary Concept of Position Tolerance
ISSN: 0148-7191, e-ISSN: 2688-3627
Published February 01, 1968 by SAE International in United States
Annotation ability available
Event: Mid-Year Meeting
Current position tolerance standards treat noncircular shapes (square holes, slots, keyways) either as special applications, or in a different manner than round features are treated. The Boundary Concept enables position tolerance to be applied in a consistent manner to all feature shapes by defining position tolerance as the interaction of a surface (the feature) and a boundary. Good correlation with the functional gaging practices of the automotive and aircraft industries is achieved. Drastic changes in current standards have been avoided.
The Boundary Concept is the result of a project of the SAE Drawing Standards Committee.
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