Implementation of online NURBS curve fitting process on CNC machines.
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| Title: | Implementation of online NURBS curve fitting process on CNC machines. |
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| Authors: | Yeh, Syh-Shiuh1 ssyeh@ntut.edu.tw, Su, Hsin-Chuan2 |
| Source: | International Journal of Advanced Manufacturing Technology. Mar2009, Vol. 40 Issue 5/6, p531-540. 10p. 2 Color Photographs, 8 Diagrams, 2 Charts, 6 Graphs. |
| Subjects: | Programming of numerically controlled machine tools, Spline theory, Curve fitting, Least squares |
| Abstract: | The study aims to develop a method for implementing an online non-uniform rational B-spline (NURBS) curve fitting process on CNC machines for improving the quality and efficiency of machining. Conventional CAD/CAM/CNC systems usually induce some machining difficulties and limit the machining results in real applications. Therefore, some researchers have proposed various methods for improving the machining results. An online NURBS curve fitting process consists of the fetching and fitting stages for CNC machines is developed in this paper. The fetching stage fetches a block of NC code and generates motion commands for obtaining data points. The fitting stage executes the NURBS curve fitting method along with a given set of data points. Moreover, the optimal search method is designed for obtaining good results in the NURBS curve fitting process. Simulations and machining tests carried out on a vertical machining center show that the proposed approach reduces the machining time to about 23% while maintaining the machining quality for the sample test. [ABSTRACT FROM AUTHOR] |
| Copyright of International Journal of Advanced Manufacturing Technology is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
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| Header | DbId: egs DbLabel: Engineering Source An: 36385681 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Implementation of online NURBS curve fitting process on CNC machines. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Yeh%2C+Syh-Shiuh%22">Yeh, Syh-Shiuh</searchLink><relatesTo>1</relatesTo><i> ssyeh@ntut.edu.tw</i><br /><searchLink fieldCode="AR" term="%22Su%2C+Hsin-Chuan%22">Su, Hsin-Chuan</searchLink><relatesTo>2</relatesTo> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22International+Journal+of+Advanced+Manufacturing+Technology%22">International Journal of Advanced Manufacturing Technology</searchLink>. Mar2009, Vol. 40 Issue 5/6, p531-540. 10p. 2 Color Photographs, 8 Diagrams, 2 Charts, 6 Graphs. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Programming+of+numerically+controlled+machine+tools%22">Programming of numerically controlled machine tools</searchLink><br /><searchLink fieldCode="DE" term="%22Spline+theory%22">Spline theory</searchLink><br /><searchLink fieldCode="DE" term="%22Curve+fitting%22">Curve fitting</searchLink><br /><searchLink fieldCode="DE" term="%22Least+squares%22">Least squares</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: The study aims to develop a method for implementing an online non-uniform rational B-spline (NURBS) curve fitting process on CNC machines for improving the quality and efficiency of machining. Conventional CAD/CAM/CNC systems usually induce some machining difficulties and limit the machining results in real applications. Therefore, some researchers have proposed various methods for improving the machining results. An online NURBS curve fitting process consists of the fetching and fitting stages for CNC machines is developed in this paper. The fetching stage fetches a block of NC code and generates motion commands for obtaining data points. The fitting stage executes the NURBS curve fitting method along with a given set of data points. Moreover, the optimal search method is designed for obtaining good results in the NURBS curve fitting process. Simulations and machining tests carried out on a vertical machining center show that the proposed approach reduces the machining time to about 23% while maintaining the machining quality for the sample test. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of International Journal of Advanced Manufacturing Technology is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1007/s00170-007-1361-9 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 10 StartPage: 531 Subjects: – SubjectFull: Programming of numerically controlled machine tools Type: general – SubjectFull: Spline theory Type: general – SubjectFull: Curve fitting Type: general – SubjectFull: Least squares Type: general Titles: – TitleFull: Implementation of online NURBS curve fitting process on CNC machines. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Yeh, Syh-Shiuh – PersonEntity: Name: NameFull: Su, Hsin-Chuan IsPartOfRelationships: – BibEntity: Dates: – D: 10 M: 03 Text: Mar2009 Type: published Y: 2009 Identifiers: – Type: issn-print Value: 02683768 Numbering: – Type: volume Value: 40 – Type: issue Value: 5/6 Titles: – TitleFull: International Journal of Advanced Manufacturing Technology Type: main |
| ResultId | 1 |
