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Titolo:
Dimension and tolerance modeling and transformations in feature based design and manufacturing
Autore:
Shah, JJ; Yan, Y; Zhang, BC;
Indirizzi:
Arizona State Univ, Dept Mech & Aerosp Engn, Tempe, AZ 85287 USA Arizona State Univ Tempe AZ USA 85287 & Aerosp Engn, Tempe, AZ 85287 USA Bridgeport Machines Inc, Bristol, PA 19007 USA Bridgeport Machines Inc Bristol PA USA 19007 s Inc, Bristol, PA 19007 USA EDS Unigraph Syst, Cypress, CA 92630 USA EDS Unigraph Syst Cypress CA USA92630 igraph Syst, Cypress, CA 92630 USA
Titolo Testata:
JOURNAL OF INTELLIGENT MANUFACTURING
fascicolo: 5, volume: 9, anno: 1998,
pagine: 475 - 488
SICI:
0956-5515(199810)9:5<475:DATMAT>2.0.ZU;2-5
Fonte:
ISI
Lingua:
ENG
Keywords:
computer-aided process planning (CAPP); feature modeling; feature mapping; geometric tolerancing; solid modeling;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Engineering, Computing & Technology
Citazioni:
16
Recensione:
Indirizzi per estratti:
Indirizzo: Shah, JJ Arizona State Univ, Dept Mech & Aerosp Engn, Tempe, AZ 85287 USA Arizona State Univ Tempe AZ USA 85287 Engn, Tempe, AZ 85287 USA
Citazione:
J.J. Shah et al., "Dimension and tolerance modeling and transformations in feature based design and manufacturing", J INTELL M, 9(5), 1998, pp. 475-488

Abstract

This paper describes the development and application of a geometric dimension and tolerance (GD&T) model for use in both design and process planning. The model meets criteria for computability and compatibility with the Y14.5M standard. The model is first used to capture the designers GD&T scheme on a feature based design model, validate its completeness, and then transfer the GD&T to machining features extracted automatically by feature recognition. The model is based on relative degrees of freedom of geometric entities: feature axes, edges, faces and features-of-size. Dimension graphs are created based on the degrees of freedom for each control direction. Datum reference frames and standard tolerance classes are incorporated into the graph. The model allows dimension specification, dimension scheme modification, and dimension scheme validation. A methodology to automatically determinethe GD&T of machining volumes obtained by feature recognition is also described.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 26/09/20 alle ore 14:07:30