Global Consistency of Tolerances (eBook, PDF)

Proceedings of the 6th CIRP International Seminar on Computer-Aided Tolerancing, University of Twente, Enschede, The Netherlands, 22-24 March, 1999
Redaktion: Houten, Fred van; Kals, Hubert

• Format: PDF

Produktbeschreibung

This book contains selected contributions from the 6th CIRP International Seminar on Computer-Aided Tolerancing, which was held on 22-24 March, 1999, at the University of Twente, Enschede, The Netherlands. This volume presents the theory and application of consistent tolerancing. Until recently CADCAM systems did not even address the issue of tolerances and focused purely on nominal geometry. Therefore, CAD data was only of limited use for the downstream processes. The latest generation of CADCAM systems incorporates functionality for tolerance specification. However, the lack of consistency in existing tolerancing standards and everyday tolerancing practice still lead to ill-defined products, excessive manufacturing costs and unexpected failures. Research and improvement of education in tolerancing are hot items today. Global Consistency of Tolerances gives an excellent overview of the recent developments in the field of Computer-Aided Tolerancing, including such topics as tolerance specification; tolerance analysis; tolerance synthesis; tolerance representation; geometric product specification; functional product analysis; statistical tolerancing; education of tolerancing; computational metrology; tolerancing standards; and industrial applications and CAT systems. This book is well suited to users of new generation CADCAM systems who want to use the available tolerancing possibilities properly. It can also be used as a starting point for research activities.

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Produktdetails

• Verlag: Springer Netherlands
• Seitenzahl: 440
• Erscheinungstermin: 17. April 2013
• Englisch
• ISBN-13: 9789401717052
• Artikelnr.: 44045707

Inhaltsangabe

Keynote.- Global Consistency of Dimensioning and Tolerancing.- Tolerance specification & allocation.- Optimising Tolerance Allocation for Mechanical Assemblies Considering Geometric Tolerances Based on a Simplified Algorithm.- Functional and product specification by Gauge with Internal Mobilities (G.I.M.).- Development of a Computer-Aided Tolerancing System in CAD Environment.- Tolerances in manufacturing: general issues.- Towards Realistic Simulation of Machining Processes.- Estimating Position Tolerance Process Capabilities.- The validation of a process plan by propagated dispersion zones.- Tolerance representation & transfer.- A three dimensional tolerance transfer methodology.- Transforming ISO 1101 Tolerances into Vectorial Tolerance Representations - A CAD-Based Approach.- Tolerances in clamping & fixturing.- Industrial application of Vectorial Tolerancing to improve clamping of forged workpieces in machining.- Root Cause Analysis for Fixtures and Locating Schemes Using Variation Data.- On-machine quality control system for TRUE-CNC manufacturing system.- Tolerance representation: from function to downstream processes.- Tolerance Representation Scheme for Integrated Cutting Process & Inspection Planning.- Towards easier and more functional semantics for geometrical tolerancing.- A tolerance system to interface design and manufacturing.- Tolerance representation: mathematical issues.- Contribution of a mathematical model of specifications of a part to their coherence analysis.- Parametric tolerancing.- Mathematical representation of Tolerance Zones.- Teaching of tolerancing.- On the education of the real geometry of mechanical parts through the tolerancing and the tridimensional metrology.- Choice of functional specifications using graphs within the framework ofeducation.- System for tolerance analysis.- TASys: A Computer Aided Tolerance System based on a Variational Geometry formulation.- Innovations in Integrating Tolerance Analysis Technologies for a Computer-Aided Tolerancing System.- Representation of assembly and inspection processes for the tolerance analysis of automobile bodies.- Industrial application I.- Two-Step Procedure for Robust Design Using CAT Technology.- Detect the Unexpected - How to Find and Avoid Unexpected Tolerance Problems in Mechanisms.- Application of TTRS Method in Industrial Practice Tolerance specification for Industrial Cooling Water Pumps.- Tolerance analysis: kinematic & dynamic effects.- The configuration space method for kinematic tolerance analysis.- Dynamic Tolerance Analysis, part I: A theoretical framework using bondgraphs.- Dynamic Tolerance Analysis, part II: Issues to be resolved when applying bondgraphs.- Tolerance evaluation & computational metrology.- Tolerance evaluation system of manufactured parts based on soft gaging.- An Expert System for Assessing Flatness with a CMM.- Cost Tolerance Sensitivity Analysis for Concurrent Engineering Design Support.- Tolerance analysis: statistical approaches.- Motion constraints in a 2D polygonal assembly.- 3D variational polyhedral assembly configuration.- A Development of Statistical Tolerancing System for Optical Products.- Industrial application II.- Modelling-Simulation-Testing of Compliant Assemblies.- Aircraft Assembly Analysis Method Taking Into Account Part Geometric Variations.- Global consistency and tolerance management.- Integrated Tolerance Information System.- Integrated Tolerance Management.- Role of Statistics in Achieving Global Consistency of Tolerances.- Tolerance analysis: new approaches.- Tolerance Analysis AndSynthesis Using Virtual Joints.- Analysis of positional tolerance based on the assembly virtual state.- Operations on polytopes: application to tolerance analysis.