3 tolerance allocation and analysis the objective of

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Unformatted text preview: e allocation, tolerance analysis, Tolerance-Map. 1. TOLERANCE-MAPS FOR SELECTED FEATURES The methods for creating Tolerance-Maps that represent tolerance-zones have been presented in [Davidson, et al., 2002], [Bhide, et al., 2001], [Mujezinović, et al., 2004], and [Bhide, et al., 2005]. Each T-Map is a convex hypothetical Euclidean point-space that represents all the variations possible for a feature, or target feature, in an assembly. The tolerances that are specified for a feature are reflected by the size and shape of the T-Map. The 3-D Tolerance-Maps for round and rectangular faces are shown in Figs. 1(b) and (c). As one example, the end of a rectangular bar of cross-sectional dimensions dy x dx is 1 Patent No. 69638242. 267 J.K. Davidson (ed.), Models for Computer Aided Tolerancing in Design and Manufacturing, 2 67– 276. © 2007 Springer. 268 A. D. Jian et al. (b) (a) (c) Figure 1. (a) The end of a rectangular bar with size tolerance t; the vertical scale in the tolerance-zone is exaggerat...
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This note was uploaded on 08/03/2010 for the course DD 1234 taught by Professor Zczxc during the Spring '10 term at Magnolia Bible.

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