The t map in fig 5b is for the stackup to face q from

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Unformatted text preview: ed. Drawn with dy>dx. (b) The double-cone T-Map® (three dimensional range of points), for the size tolerance t applied to a round bar; the double cone has dimension σ1σ2 = t and rim-radius Oσ1 = t. (c) The T-Map® for the tolerancezone on the rectangular bar shown in (a); σ3σ7 = t and σ4′ σ8′ = tdy/dx . $4 L’ Q $6 $1 $2 $5 M’ $8 $9 j (a) (b) Figure 2. a) Two holes in a plate of thickness j. Both holes are located with the tolerance t = 0.1 mm. The larger hole is to be held perpendicular to Datum A with the tolerance t″ = 0.5 mm. b) One of the 3-D hypersections (L'M'Q) of the T-Map (hypothetical 4-D point-space) that represents the range of the position variation of an axis (tolerance t″ is not applied). The only edges are the two circles shown; both have diameter t. The points $i are points of the T-Map that correspond to lines in the tolerance-zone [Bhide, et al. 2005]. shown in Fig. 1(a) with a highly exaggerated tolerance on its length l. According to the Standards [e.g. ASME, 1994], all points of the end-face must lie between the limiting planes σ1 and σ2, and within the rectangular limit of the face. The T-Map for this Tolerance Analysis and Allocation for a Power Saw Assembly 269 rectangular face is developed...
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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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