Generating Alternative Interpretations of Machining Features

Lee, J. Y.; Kim, K.

doi:10.1007/s001700050037

Cited by 28 publications

(20 citation statements)

References 16 publications

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“…Some successful applications of feature recognition and feature-based design have been found from the literature. Lee and Kim [21], for instance, proposed a feature-based approach to generate alternative interpretations of machining features from a feature-based design model. Lau and Jiang [22] presented a method to recognise manufacturing features from a STEP 203 file.…”

Section: Literature Reviewmentioning

confidence: 99%

Rapid one-of-a-kind product development

Xie

2005

Int J Adv Manuf Technol

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In today's global market, more and more manufacturing companies have realised that the ability to quickly develop a customised product in an economic and efficient way is critical for them to survive in the keen competitive international market, particularly for one-of-a-kind production (OKP) companies. A new generation of OKP systems needs to be developed to maintain competitiveness in the global marketplace and to improve the ability to rapidly combine the strengths of manufacturing partners to meet market needs. In this paper, the main objectives of rapid OKP development in the global manufacturing environment are discussed. The background of recent approaches for rapid development of OKP products is reviewed. After systematically reviewing the existing OKP systems and recent developments of new technology and systems, the authors discuss current issues and requirements for developing a new generation of OKP systems for rapidly producing OKP products. At the end of this paper, a reference system structure is proposed for rapid development of OKP products in the global manufacturing environment.

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Section: Literature Reviewmentioning

confidence: 99%

Rapid one-of-a-kind product development

Xie

2005

Int J Adv Manuf Technol

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“…Depending on the downstream machining application, it might be necessary to convert design features into machining features through feature conversion or feature extraction. Feature extraction defines machining features from a geometry-based design model, whereas feature conversion converts machining features from a feature-based design model [6][7][8][9][10].…”

Section: Introductionmentioning

confidence: 99%

“…Usually, a component can be represented by more than one machining feature model. These feature sets correspond to different manufacturing methodologies to machine the component [6,8,11,12]. A cell-based decomposition approach was proposed to generate machining models in [11,12].…”

Section: Introductionmentioning

confidence: 99%

Extraction of machining features for CAD/CAM integration

Gao

Zheng

Gindy

2004

AMT

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Feature-based CAD/CAM integration is a technology used to realise automatic transmission and conversion of component information among CAD, CAPP and CAM applications. A feature is the medium of information transmission in the integration. Since a process planning downstream application has a different viewpoint from the component designer, feature conversion or feature extraction methodology is used to create a machining feature model based on the design feature model. One of the major difficulties in generating machining features is the preservation of feature integrity because of feature interactivity. The most current research, therefore, focuses on the planar-type form feature conversion. This paper discusses the problem of feature interactivity and proposes a feature-based approach to generating hole-series machining features from a design feature model. Hole-series features are important machining features for gearbox components used in machine tools. These kinds of features cannot be obtained directly from a design feature database. A constraint-based method is developed in this paper to define a hole-series feature model based on the geometric and topological information extracted from the design database. In addition, a STEP file is generated to interface the converted machining feature model with the downstream CAPP application. The implemented feature conversion system is verified by considering its application to some component examples and the developed prototype CAPP system.

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“…This process is called feature conversion or feature mapping. Methods and algorithms for feature conversion have been studied and applied by many researchers [8][9][10]. Nevertheless, the majority of contemporary feature-based design is still incapable of fully handling one of the most important and perhaps the most difficult aspects in the development of featurebased systems, that is, the definition and representation of feature interactions.…”

Section: Introductionmentioning

confidence: 99%

“…Therefore, preserving feature integrity during the design and machining process phases is one of the key issues in realising the feature-based CAD/CAPP/CAM integration [11][12][13]. Much research has been conducted into techniques for extracting machining features from a design feature-based system [5,7,9,10,[14][15][16]. However, such research has mainly focused on the geometric information recognition or conversion.…”

Section: Introductionmentioning

confidence: 99%

Extraction/conversion of geometric dimensions and tolerances for machining features

Gao

Zheng

Gindy

et al. 2004

Int J Adv Manuf Technol

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It is important for a feature-based system to preserve feature integrity during feature operation, especially when feature interaction occurs. The paper presents a feature conversion approach to convert design features used in a design model into machining features for the downstream applications. This process includes both form features (geometric information) and non-geometric features conversion. Most researchers have concentrated on geometric information extraction and conversion without tackling the important problem of non-geometric feature information. This paper focuses on the extraction and conversion of feature geometric dimensions and tolerances (GD&T) for downstream machining application.The main barrier to the integration of a feature-based CAD/ CAPP/CAM system -feature interaction -is discussed in this paper, which alters design features in their geometries and nongeometric information. How to identify and validate these feature dimensions and tolerances is one of the key issues in feature interaction conversion. The development of robust methodologies for preserving feature integrity for use in process planning application is the main thrust of the work reported in this paper.

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Generating Alternative Interpretations of Machining Features

Cited by 28 publications

References 16 publications

Rapid one-of-a-kind product development

Rapid one-of-a-kind product development

Extraction of machining features for CAD/CAM integration

Extraction/conversion of geometric dimensions and tolerances for machining features

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