skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Positional Tolerancing / Feature(s) of Size Surface Interpretation vs Axis Interpretation.

Abstract

Abstract not provided.

Authors:
;
Publication Date:
Research Org.:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Org.:
USDOE National Nuclear Security Administration (NNSA)
OSTI Identifier:
1405247
Report Number(s):
SAND2016-10624PE
648482
DOE Contract Number:
AC04-94AL85000
Resource Type:
Conference
Resource Relation:
Conference: Proposed for presentation at the IMOG Measurement Technology Subgroup Meeting held October 25-26, 2016 in Aiken, SC, US.
Country of Publication:
United States
Language:
English

Citation Formats

Bryce, Edwin A., and Baca, Margaret C. Positional Tolerancing / Feature(s) of Size Surface Interpretation vs Axis Interpretation.. United States: N. p., 2016. Web.
Bryce, Edwin A., & Baca, Margaret C. Positional Tolerancing / Feature(s) of Size Surface Interpretation vs Axis Interpretation.. United States.
Bryce, Edwin A., and Baca, Margaret C. 2016. "Positional Tolerancing / Feature(s) of Size Surface Interpretation vs Axis Interpretation.". United States. doi:. https://www.osti.gov/servlets/purl/1405247.
@article{osti_1405247,
title = {Positional Tolerancing / Feature(s) of Size Surface Interpretation vs Axis Interpretation.},
author = {Bryce, Edwin A. and Baca, Margaret C.},
abstractNote = {Abstract not provided.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = 2016,
month =
}

Conference:
Other availability
Please see Document Availability for additional information on obtaining the full-text document. Library patrons may search WorldCat to identify libraries that hold this conference proceeding.

Save / Share:
  • A primary requirement for the successful deployment of advanced manufacturing applications is the need for a complete and accessible definition of the product. This product definition must not only provide an unambiguous description of a product`s nominal shape but must also contain complete tolerance specification and general property attributes. Likewise, the product definition`s geometry, topology, tolerance data, and modeler manipulative routines must be fully accessible through a robust application programmer interface. This paper describes a tolerancing capability using features that complements a geometric solid model with a representation of conventional and geometric tolerances and non-shape property attributes. This capability guaranteesmore » a complete and unambiguous definition of tolerances for manufacturing applications. An object-oriented analysis and design of the feature-based tolerance domain was performed. The design represents and relates tolerance features, tolerances, and datum reference frames. The design also incorporates operations that verify correctness and check for the completeness of the overall tolerance definition. The checking algorithm is based upon the notion of satisfying all of a feature`s toleranceable aspects. Benefits from the feature-based tolerance modeler include: advancing complete product definition initiatives, incorporating tolerances in product data exchange, and supplying computer-integrated manufacturing applications with tolerance information.« less
  • This paper describes a feature-based tolerancing capability that complements a geometric solid model with an explicit representation of conventional and geometric tolerances. This capability is focused on supporting an intelligent inspection process definition system. The feature-based tolerance model`s benefits include advancing complete product definition initiatives (e.g., STEP -- Standard for Exchange of Product model dam), suppling computer-integrated manufacturing applications (e.g., generative process planning and automated part programming) with product definition information, and assisting in the solution of measurement performance issues. A feature-based tolerance information model was developed based upon the notion of a feature`s toleranceable aspects and describes an object-orientedmore » scheme for representing and relating tolerance features, tolerances, and datum reference frames. For easy incorporation, the tolerance feature entities are interconnected with STEP solid model entities. This schema will explicitly represent the tolerance specification for mechanical products, support advanced dimensional measurement applications, and assist in tolerance-related methods divergence issues.« less
  • The shortcomings of bilateral (coordinate) dimensioning in product drawings as a means of giving engineering information are pointed out using as an example a bilaterally dimensioned plate with four clearance holes for assembling to another identical plate. A new system called positional tolerancing is proposed for inspection criteria for companies with far-flung operations. Paper gage techniques are given for open setup inspection of piece parts. (D.L.C.)
  • The positional tolerance method of dimensioning is described. The emphasis is placed on the elimination of ambiguities and increase in tolerances provided by this method as compared to the older, bilateral method. (auth)