Abstract
After the study of geometrical specifications by Gauge with Internal Mobilities G.I.M. in part 1, we propose to analyze the functional and manufacturing specifications in order to valid the process plan. The purpose is to compare functional specifications to manufacturing specifications.
When a manufacturing process plan is being set up, it is essential to verify the geometrical consistency between functional and manufacturing specifications. Our tolerancing analysis model uses a variational approach, the real geometry of parts is apprehended by a variation of the nominal geometry. Three dimensional dimension chains are characterized by n-hulls (compatibility hull: relations between displacements of surfaces of part and gauge, interface hull: geometrical constraints between part surfaces and gauge surfaces, structure hull: geometrical constraints between gauge entities) expressed in n-affine spaces such each axis corresponds to a parameter of geometrical description (geometrical deviations and gaps). Our method allows us to express formal relations between n-hulls and specification (or manufacturing) hull which limits the deviations of part. So that the process plan is acceptable, the manufacturing hull must be included in the specification hull.
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References
Ballot E., Bourdet P., Thiebaut F.; CONTRIBUTION OF A MATHEMATICAL MODEL OF SPECIFICATIONS OF A PART TO THEIR COHERENCE ANALYSIS, In: proc. of 6th Cirp Seminar on Computer Aided Tolerancing; University ofTwente; Enscede; Netherlands; March 22–24; 1999.
Ballot E., Bourdet P.; A COMPUTATION METHOD FOR THE CONSEQUENCES OF GEOMETRIC ERRORS IN MECHANISMS, CIRP Seminar on Computer Aided Tolerancing, Toronto, Canada, April 1997.
Clément A., Desrochers A., Rivière A. ; THEORY AND PRACTICE OF 3D TOLERANCING FOR ASSEMBLY, CIRP Seminar on Computer Aided Tolerancinb, Penn State University, USA, May 1991.
Giordano M., Duret D., CLEARENCE SPACE AND DEVIATION SPACE, APPLICATION TO THREE-DIMENSIONAL CHAIN OF DIMENSIONS AND POSITIONS, CIRP Seminar on Computer Aided Tolerancing, Ens Cachan, May 1993.
Guilford J., Turner J.U. ; ADVANCED TOLERANCE ANALYSIS AND SYNTHESIS FOR GEOMETRIC TOLERANCES, International Forum on Dimensional Tolerancing and Metrology, CRTD-Vol. 27, pp. 187–198, 1993.
Gupta S., Turner J.U. ; VARIATIONAL SOLID MODELING FOR TOLERANCE ANALYSIS, IEEE Computer Graphics & Application, Vol. 13, n°3, pp. 64–74, 1993.
Rivest L., Fortin C., Morel C.; TOLERANCING A SOLID WITH A KINEMATIC FORMULATION, Computer Aided Design, Vol. 26, n°6, pp. 465–476, 1994.
Roy U., Li B.; REPRESENTATION AND INTERPRETATION OF GEOMETRIC TOLERANCES FOR POLYHEDRAL OBJECTS, Computer Aided Design, Vol. 31, n°4, pp. 273–285, 1999.
Sodhi R. ; ASSEMBLY MODELING FOR DESIGN ANALYSIS, PhD Thesis, Rensselear Polytechnic Institute, March 1995.
Teissandier D., Couétard Y., Gérard A. ; THREE DIMENSIONAL FUNCTIONAL TOLERANCING WITH PROPORTIONED ASSEMBLIES CLEARENCE VOLUME: APPLICATION TO SETUP PLANNING, CIRP Seminar on Computer Aided Tolerancing, Toronto, Canada, April 1997.
Turner J.U. ; THE M-SPACE THEORY OF TOLERANCES, Advanced in Design Automation, Asme, Vol. 23, n°1, pp. 217–226, 1990
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© 2002 Springer Science+Business Media Dordrecht
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Dantan, JY., Thiebaut, F., Ballu, A., Bourdet, P. (2002). Functional and Manufacturing Specifications. In: Chedmail, P., Cognet, G., Fortin, C., Mascle, C., Pegna, J. (eds) Integrated Design and Manufacturing in Mechanical Engineering. Springer, Dordrecht. https://doi.org/10.1007/978-94-015-9966-5_8
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DOI: https://doi.org/10.1007/978-94-015-9966-5_8
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