A Portrait of an ISO STEP Tolerancing Standard as an Enabler of Smart Manufacturing Systems

Feeney, Allison Barnard; Frechette, Simon P.; Srinivasan, Vijay

doi:10.1115/1.4029050

Cited by 89 publications

(50 citation statements)

References 12 publications

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“…Thus, a primary work is to study its improvements on the basis of its limitations, rather than to study how to completely replace it. According to the literature, a major limitation of the existing EXPRESS models is that they have great difficulty in explicitly representing tolerance information semantics, because the EXPRESS language is unable to represent information semantics [57] and they will not contain any representation of tolerance information semantics [58]. Aiming at this limitation, several researchers (e.g., Barbau et al [102], Sarigecili [57]) presented to directly transform the existing EXPRESS models into OWL ontologies.…”

Section: And Has the Representation Model Been Applied In Industry?mentioning

confidence: 99%

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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: And Has the Representation Model Been Applied In Industry?mentioning

confidence: 99%

“…However, the model cannot meet the demand of the representation and exchange of tolerance information semantics (i.e., the model is not really computerinterpretable), because EXPRESS is unable to explicitly represent the semantics [57] and the model will not contain any representation of tolerance information semantics [58].…”

Section: Express Modelmentioning

confidence: 99%

A review of representation models of tolerance information

Qin

et al. 2017

Int J Adv Manuf Technol

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“…• AP203 -Configuration Controlled 3D Design of Mechanical Parts and Assemblies [8] • AP209 -Multidisciplinary Analysis and Design [9,10] • AP210 -Electronic Assembly Interconnect and Packaging Design [11] • AP214 -Automotive Design [12] • AP238 -Integrated CNC Schema [13,14] • AP239 -Product Life Cycle Support (PLCS) [15,16] • AP242 -Managed Model Based 3D Engineering [17][18][19] IFC (Industry Foundation Classes) [20][21][22] and CIS/2 (CIMsteel Integration Standards) [23,24], used in the building and structural steel industries, respectively, are also supported. A complete list of supported APs can be found in the Help menu under Supported STEP APs (section 4.1.3).…”

Section: Introductionmentioning

confidence: 99%

STEP file analyzer and viewer user guide (update 5)

Lipman¹

2018

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ii PREFACEThis guide describes how to use the STEP File Analyzer and Viewer, a software tool that analyzes and generates a spreadsheet or a set of CSV (comma-separated value) files from a STEP (STandard for the Exchange of Product model data) file. The spreadsheets simplify inspecting information in the STEP file at an entity and attribute level. STEP files can also be checked for conformance to recommended practices for Product and Manufacturing Information (PMI) representation, PMI presentation, and validation properties.The STEP File Analyzer and Viewer also generates visualizations of boundary representation part geometry, graphical PMI annotations, tessellated part geometry, supplemental geometry, and finite element models.More information about the software and sample spreadsheets and visualizations can be found at https://www.nist.gov/services-resources/software/step-file-analyzer-and-viewer. The source code for the software is available at https://github.com/usnistgov/SFA.

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“…II. Introductory section, 3rd paragraph, last sentence: "As underlined by [3] the Tolerancing standards, such as ASME Y14.5 [4] can help to define tolerances in smart manufacturing systems." III.…”

mentioning

confidence: 99%

“…It also integrates manufacturing process information including new developments of STEP to support AM technology (www.ap242.org/additive-manufacturing). According to [3], STEP AP242 covers many computable representations for several types of 3D model data, including GD&T (Fig. 3)."…”

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confidence: 99%

Correction to: Information exchange standards for design, tolerancing and Additive Manufacturing: a research review

Xiao

Anwer

Durupt

et al. 2017

Int J Interact Des Manuf

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The erratum aims at clarifying and updating some errors and wrong assumptions of authors of the above-mentioned paper. Correction to: Int J Interact Des Manufhttps://doi.org/10.1007/s12008-017-0401-4According to the careful reading of Mr. Robert Lipman from NIST on above-mentioned paper [1] and his detailed recommendations, some sections of this paper should be read as follows: can help to define tolerances in smart manufacturing systems." III. Section 2.1, 2nd paragraph, last sentences: "As mentioned by [6], PMI provided by CAD can describe dimensional tolerances on length and diameter, and geometric tolerances on flatness, perpendicularity, position, surface profile, and circular run-out. PMI syntax and semantics are defined by working group of ASME Y14.5 and ISO TC 213. The skin model shapes and PMI specifications may be combined to solve geometric deviations and tolerance management." IV. Section 3.2, 1st paragraph: "PMI is based on annotations and attributes linked to the definition of CAD model allowing specifications of product geometry for a manufacturing viewpoint. As underlined [6], PMI includes annotations to specify GD&T, as well as nongeometric data, such as surface texture specifications, finish requirements, process notes, material specifications, and welding symbols. GD&T is a symbolic language used to communicate tolerances on manufactured parts. The international standards for presentation of GD&T in views of 3D space are also used in CAD systems according to ASME Y14. 41-2012 [7] and ISO 16792:2006 [8]." V. Section 4, 4th paragraph: "STEP (ISO 10303) is a large set of standards specifying methodology, resources and languages for describing product data throughout its whole lifecycle [9][10][11]. As mentioned by [6], STEP is widely used in CAD systems and a critical enabler of digital manufacturing, an information based paradigm that allows for rapid design-to-production and reduces downstream costs. It is also often implemented and used for widely managing product information and their long-term archiving. ISO 10303 covers a large range of product types and industry sectors. Product data mod-123

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A Portrait of an ISO STEP Tolerancing Standard as an Enabler of Smart Manufacturing Systems

Cited by 89 publications

References 12 publications

A review of representation models of tolerance information

A review of representation models of tolerance information

STEP file analyzer and viewer user guide (update 5)

Correction to: Information exchange standards for design, tolerancing and Additive Manufacturing: a research review

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