The Boundary Concept of Position Tolerance
680489
02/01/1968
- Event
- Content
- 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.
- Pages
- 5
- Citation
- Liggett, J., "The Boundary Concept of Position Tolerance," SAE Technical Paper 680489, 1968, https://doi.org/10.4271/680489.