A method for computer-aided specification of geometric tolerances

Armillotta, Antonio

doi:10.1016/j.cad.2013.08.007

Cited by 56 publications

(43 citation statements)

References 36 publications

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“…Considering the representation of design requirements is very important for tolerance information representation, because both tolerancing and assembly serve the purpose of fulfilling the function requirements of products. Even though some single tolerancing cases (e.g., the tolerancing cases presented by Ballu and Mathieu [89], Wang et al [90], Anselmetti [91], Armillotta [92], and Cao et al [93]) have involved it, systematically considering design requirements in tolerancing remains a challenging objective.…”

Section: Comparisonmentioning

confidence: 99%

A review of representation models of tolerance information

Qin

et al. 2017

Int J Adv Manuf Technol

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A good representation model of tolerance information is indispensable for achieving computer-aided tolerancing. Currently, the representation model used in industry is the EXPRESS model, while at the same time, a number of other kinds of representation models have been presented within the academia. The coexistence of different kinds of representation models generates a series of questions and discussions: can the EXPRESS model completely implement the representation of tolerance information semantics in an explicit, computer-readable, and computer-interpretable way? What challenges have been addressed to date by the presented representation models? What are the advantages and disadvantages of each representation model? What capabilities should an ideal representation model have? What are the potential research directions in tolerance information representation in the future? To approach these questions, a review of representation models of tolerance information is presented in this paper. An in-depth analysis of existing representation models is firstly provided. Then, the review makes a detailed comparison among them based on this analysis. Finally, some future research directions in tolerance information representation are suggested.

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Section: Comparisonmentioning

confidence: 99%

A review of representation models of tolerance information

Qin

et al. 2017

Int J Adv Manuf Technol

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“…Coordinate Measurement Machines (CMM)) with the purpose of discovering inspection inconsistencies and so to improve tolerancing. Linking metrology with tolerancing has over time occupied Computer Aided Tolerancing (CAT)-research, and been summarized [23], and lately been united with GPS-principles [24] in various applications [25].…”

Section: Traditional Tolerance Engineeringmentioning

confidence: 99%

Variation Analysis in Collaborative Engineering; an Industrial Case Study of Rocket Motor Development

2014

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Considerably less research is found on tolerance specifications compared to research on tolerance analysis and synthesis. Where tolerance analysis and synthesis often can be completely understood based on technical input we argue that an extended research approach is needed to understand tolerance specification complexity. We have aimed to understand the Research Question (RQ) "How does variation analysis support tolerance specification during collaborative Product Development (PD)"? For this case study of the Product Development Process (PDP) of a rocket motor within the defense industry we have used interviews, observations, participation and secondary sources during data gathering. We found that collaborative gathering of input for the simulation generates useful knowledge for the project at an early stage. Further, that swiftly and precisely done variation analysis generates output supporting frequent and cross functional communication on tolerances. We see the enabled fact based decision making as an important factor to PD success.

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“…Most researchers have concentrated on geometric data extraction, [1] describes a method for the generation of tolerance specifications from product data, for each feature one or more geometric controls will have to be identified, [2]presents a way to interpret the Geometric Dimensioning and Tolerancing (GD&T) specifications in STEP for tolerance analysis by utilizing OntoSTEP plugin [3] which consists of translating the APs defined in the EXPRESS language [4],and the actual instance files represented using the ISO 1030321 (or simply part21)format [5].…”

Section: Introductionmentioning

confidence: 99%

Technical Data Extraction and Representation in Expert CAPP System

Elaakil

Rechia

Mesbahi

et al. 2017

TMLAI

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Computeraided process planning (CAPP) is an essential interface for linking design and manufacturing processes, the purpose of CAPP is to transform a part design specification obtained from CAD system into a sequence of machining operations which can be used by CAM system involving the selection of necessary manufacturing processes in order to transform a designed part into a final part economically and competitively.This paper focus on the extraction of tolerances (GD&T) and their association to the related features embedded into an expert CAPP system.

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A method for computer-aided specification of geometric tolerances

Cited by 56 publications

References 36 publications

A review of representation models of tolerance information

A review of representation models of tolerance information

Variation Analysis in Collaborative Engineering; an Industrial Case Study of Rocket Motor Development

Technical Data Extraction and Representation in Expert CAPP System

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