The effects of different specifications on the tolerance-maps for an angled face

Gaurav Ameta, Joseph K. Davidson, Jami J. Shah

Research output: Chapter in Book/Report/Conference proceedingConference contribution

11 Scopus citations

Abstract

A new mathematical model for representing geometric tolerances is applied to a part with an angled face and is extended to show its sensitivity to different specifications for dimensioning and tolerancing the part. The model is compatible with the ASME/ISO Standards for geometric tolerances. Central to the new model is a Tolerance-Map ®1, a hypothetical volume of points that corresponds to all possible locations and variations of a segment of a plane which can arise from tolerances on size, position, form, and orientation. Every Tolerance-Map is a convex set. This model is one part of a bi-level model that we are developing for geometric tolerances. The new model makes stackup relations apparent in an assembly, and these can be used to allocate size and orientational tolerances; the same relations also can be used to identify sensitivities for these tolerances. All stackup relations can be met for 100% interchangeability or for a specified probability. This paper develops several Tolerance-Maps for a part with an angled end face for different tolerance specifications. These specifications are linear size, angularity, angular size, "linear size & angularity" and "linear & angular size" tolerance. Comparison of Tolerance-Maps for their content for these specifications led to the following conclusions: a) only angular size tolerance is not sufficient for tolerancing an angled face; b) if the value of tolerance remains the same, the allowable variation is more in a part having only an angularity tolerance than in one having only a size tolerance.

Original languageEnglish (US)
Title of host publicationProceedings of the ASME Design Engineering Technical Conference
Pages303-311
Number of pages9
Volume1
StatePublished - 2004
Event2004 ASME Design Engineering Technical Conferences and Computers and Information in Engineering Conference - Salt Lake City, UT, United States
Duration: Sep 28 2004Oct 2 2004

Other

Other2004 ASME Design Engineering Technical Conferences and Computers and Information in Engineering Conference
CountryUnited States
CitySalt Lake City, UT
Period9/28/0410/2/04

ASJC Scopus subject areas

  • Engineering(all)

Fingerprint Dive into the research topics of 'The effects of different specifications on the tolerance-maps for an angled face'. Together they form a unique fingerprint.

  • Cite this

    Ameta, G., Davidson, J. K., & Shah, J. J. (2004). The effects of different specifications on the tolerance-maps for an angled face. In Proceedings of the ASME Design Engineering Technical Conference (Vol. 1, pp. 303-311). [57199]