A step toward STEP-compatible engineering data management: the data models of product structure and engineering changes

Peng, Ting-Kuo; Trappey, Amy J.C.

doi:10.1016/s0736-5845(97)00016-1

Cited by 49 publications

(13 citation statements)

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“…The objective of STEP is to provide a neutral mechanism capable of describing product data throughout the life cycle of a product independent from any particular system. The nature of this description makes it suitable not only for neutral file exchange, but also as a basis for implementing and sharing product databases and archiving (Peng and Trappey, 1998).…”

Section: 5mentioning

confidence: 99%

A STEP-Compliant Approach to Turning Operations

Yusof

Case

2009

Springer Series in Advanced Manufacturing

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There is no doubt that today manufacturing is more competitive and challenging than ever before in trying to respond to "production on demand". Companies from east and west and all over the world have changing rules of business and need to collaborate beyond geographic boundaries with the support of the rapid advancement of information technology associated with manufacturing technology. To satisfy customers' demands for product variety and the industrial need for high precision, numerically controlled machining with multiple axes and sophisticated machine tools are required. Due to the complexity of programming there is a need to model their process capability to improve the interoperable manufacturing capability of machines such as turning centres. This thesis focuses on the use of the new standard; ISO 14649 (STEP-NC), to address the process planning and machining of discrete turned components. It explores how ISO 14649 can be used to combine turning and milling operations to support interoperable CNC manufacturing of rotational asymmetric components at a single turning centre. The STEP-NC standard presents the opportunity to develop a new structure for feature-based process planning to address the process planning and machining of discrete components. This research proposes a STEP Compliant NC structure for generation of ISO 14646 code which can be used for turned component manufacture. The major contribution of this research is the creation of a computational environment for a STEP-NC compliant system for turning operations namely SCSTO. SCSTO is the experimental part of the research, supported by specification of information models and constructed using a structured methodology and object-oriented methods. SCSTO was developed to generate a Part 21 file based on machining features to support the interactive generation of process plans utilising feature extraction. Case study components have been tested to prove that the new approach (STEP-NC) can be used to generate code equivalent to currently used G-codes with some benefits such as the elimination of the post-processor. An important aspect was the need to overcome the complexities of component geometry including milling features so as to have ability to manufacture turn/mill components.

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Section: 5mentioning

confidence: 99%

A STEP-Compliant Approach to Turning Operations

Yusof

Case

2009

Springer Series in Advanced Manufacturing

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“…The product definition data model provides the generic representation of how a product can be defined by a set of definitions and be grouped by 6 Knowledge structure in the G MM a set of versions [27]. The goal of the product information structure is the management of all relevant information of a product type [28].…”

Section: The Modelling Information Relationshipmentioning

confidence: 99%

An exploration of key information models and their relationships in global manufacturing decision support

Liu

Young

2007

Proceedings of the Institution of Mechanical Engineers, Part B:

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• This is an article from the journal, Proceedings of the In- Abstract: Global manufacturing businesses are beginning to benefit from the information and knowledge support provided by modern IT tools such as Product Lifecycle Management (PLM), Enterprise Resource Planning (ERP), and Customer Relations Management (CRM). Many types of information and knowledge, from customer requirements through product information to global enterprise manufacturing capability are involved in global manufacturing decisions. Understanding the appropriate structures and relationships for this information and knowledge is a significant issue if effective wide-ranging support is to be provided. This paper focuses on global manufacturing decision support and explores three key types of information and knowledge relationship: (a) relationships between information and knowledge elements within a single information and knowledge model; (b) relationships between different information and knowledge models at one organizational level; (c) relationships between different information and knowledge models at different organizational levels. The corresponding information and knowledge structures have been presented with Unified Modelling Language (UML) to show the multiplicity of relationship required, and these are explored with an experimental system based on Rational Unified Process, Visual Cþþ , and object-oriented DBMS ObjectStore. A case study has been pursued to explore the application of the information and knowledge models to a real industry environment.

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“…A number of different data representations are currently available such as STEP (Peng and Trappey 1998; http:// pdesinc.aticorp.org/) and XML (http://www.w3.org/XML/) and, recently, mappings between STEP and XML (Kimber 1999; http://www.stepml.org). However, an alterative representation was developed to enable engineering data to be easily modelled, communicated and modified by designers.…”

Section: Data Managementmentioning

confidence: 99%