HSM toolpath generation with capsule-based region subdivision.

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Title: HSM toolpath generation with capsule-based region subdivision.
Authors: Zhai, Zhiyong1 1094630796@qq.com, Lin, Zhiwei2, Fu, Jianzhong3
Source: International Journal of Advanced Manufacturing Technology. Jul2018, Vol. 97 Issue 1-4, p1407-1419. 13p.
Subjects: High-speed machining, Machine tool path, Manufacturing processes, Manufacturing industries, Machining
Abstract: High-speed machining (HSM) has become a research hotspot in the manufacturing field these years. In HSM, it requires the toolpath to be very smooth. Any sharp corners will cause decelerations of the feed axes. However, corners are inevitable in the toolpath generation process. This work focuses on smooth toolpath generation for HSM pocketing. The concept of region subdivision is proposed and implemented. With this concept, the input pocket is firstly subdivided into two classes of sub regions: the HSM regions and the low-speed machining (LSM) regions. For the HSM regions, very smooth path curves are filled and high machining speed is set. For the LSM regions, sharp corners are allowed and low machining speed is set. In this work, the HSM regions are extracted as capsule-shape regions inside the pocket. For these capsules, paperclip-shape curves are used as the HSM toolpath. These curves are smoothly connected by semicircles and line segments. The path intervals are strictly controlled so that constant radial cutting depth can be achieved. For the rest regions inside the pocket, conventional offset curves are filled as the LSM toolpaths. The proposed capsule-based HSM toolpath generation method is tested with several comparative examples. Results show that the proposed method could generate larger HSM regions and more efficient toolpaths than the maximum inscribed circle-based method from the authors’ previous work. [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.)
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  Data: HSM toolpath generation with capsule-based region subdivision.
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  Data: <searchLink fieldCode="AR" term="%22Zhai%2C+Zhiyong%22">Zhai, Zhiyong</searchLink><relatesTo>1</relatesTo><i> 1094630796@qq.com</i><br /><searchLink fieldCode="AR" term="%22Lin%2C+Zhiwei%22">Lin, Zhiwei</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Fu%2C+Jianzhong%22">Fu, Jianzhong</searchLink><relatesTo>3</relatesTo>
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  Data: <searchLink fieldCode="JN" term="%22International+Journal+of+Advanced+Manufacturing+Technology%22">International Journal of Advanced Manufacturing Technology</searchLink>. Jul2018, Vol. 97 Issue 1-4, p1407-1419. 13p.
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  Data: <searchLink fieldCode="DE" term="%22High-speed+machining%22">High-speed machining</searchLink><br /><searchLink fieldCode="DE" term="%22Machine+tool+path%22">Machine tool path</searchLink><br /><searchLink fieldCode="DE" term="%22Manufacturing+processes%22">Manufacturing processes</searchLink><br /><searchLink fieldCode="DE" term="%22Manufacturing+industries%22">Manufacturing industries</searchLink><br /><searchLink fieldCode="DE" term="%22Machining%22">Machining</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: High-speed machining (HSM) has become a research hotspot in the manufacturing field these years. In HSM, it requires the toolpath to be very smooth. Any sharp corners will cause decelerations of the feed axes. However, corners are inevitable in the toolpath generation process. This work focuses on smooth toolpath generation for HSM pocketing. The concept of region subdivision is proposed and implemented. With this concept, the input pocket is firstly subdivided into two classes of sub regions: the HSM regions and the low-speed machining (LSM) regions. For the HSM regions, very smooth path curves are filled and high machining speed is set. For the LSM regions, sharp corners are allowed and low machining speed is set. In this work, the HSM regions are extracted as capsule-shape regions inside the pocket. For these capsules, paperclip-shape curves are used as the HSM toolpath. These curves are smoothly connected by semicircles and line segments. The path intervals are strictly controlled so that constant radial cutting depth can be achieved. For the rest regions inside the pocket, conventional offset curves are filled as the LSM toolpaths. The proposed capsule-based HSM toolpath generation method is tested with several comparative examples. Results show that the proposed method could generate larger HSM regions and more efficient toolpaths than the maximum inscribed circle-based method from the authors’ previous work. [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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      – Type: doi
        Value: 10.1007/s00170-018-2035-5
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      – Code: eng
        Text: English
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        PageCount: 13
        StartPage: 1407
    Subjects:
      – SubjectFull: High-speed machining
        Type: general
      – SubjectFull: Machine tool path
        Type: general
      – SubjectFull: Manufacturing processes
        Type: general
      – SubjectFull: Manufacturing industries
        Type: general
      – SubjectFull: Machining
        Type: general
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      – TitleFull: HSM toolpath generation with capsule-based region subdivision.
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            NameFull: Zhai, Zhiyong
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            NameFull: Lin, Zhiwei
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            NameFull: Fu, Jianzhong
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            – D: 01
              M: 07
              Text: Jul2018
              Type: published
              Y: 2018
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            – TitleFull: International Journal of Advanced Manufacturing Technology
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