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Unformatted text preview: ithin the T-Map for position. Another internal subset describes the displacement possibilities for the subset T-Maps that limits form. The T-Map for orientation and position together is formed most reliably by truncating the T-Map for position alone. Keywords: form tolerance, position tolerance, straightness, axis, Tolerance-Map. 1. INTRODUCTION AND LITERATURE REVIEW When a part is to be manufactured, there are allowable geometric variations for its features. As explained in the ASME Y14.5M Standard [ASME,1994] and the ISO 1101 Standard [ISO,1983], the allowable geometric variations are specified using three-dimensional tolerance-zones in which the feature is permitted several degrees of freedom for displacement. The tolerance-zone is located with a basic dimension. The shape of the tolerance zone is defined by the type and value of the tolerance and the feature to which it
1 Patent No. 6963824. 45
J.K. Davidson (ed.), Models for Computer Aided Tolerancing in Design and Manufacturing, 4 5 – 54. © 2007 Springer. 46 S. Bhide et al. et is applied. The Standard defines six-tolerance types; size, orientation, location, profile, form...
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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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