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Advances in Manufacturing ›› 2023, Vol. 11 ›› Issue (3): 390-406.doi: 10.1007/s40436-023-00443-3

• ARTICLES • 上一篇    下一篇

Smoothing strategy for corner of small curvature radius by abrasive waterjet machining

Jian-Feng Chen1, Ye-Min Yuan1, Hang Gao1, Tian-Yi Zhou1   

  1. 1 State Key Laboratory of High-Performance Precision Manufacturing, School of Mechanical Engineering, Dalian University of Technology, Dalian 116024, People's Republic of China
  • 收稿日期:2022-03-22 修回日期:2023-01-13 出版日期:2023-09-09 发布日期:2023-09-09
  • 通讯作者: Hang Gao,E-mail:gaohang@dlut.edu.cn E-mail:gaohang@dlut.edu.cn
  • 作者简介:Jian-Feng Chen is a student in the Ph.D. program in the school of mechanical engineering at Dalian University of Technology, China. He received the M.E. degree in mechanical engineering from Harbin University of Science and Technology in 2018. His current research interests include non-traditional processing technology.
    Ye-Min Yuan is a student in the Ph.D. program in the school of mechanical engineering at Dalian University of Technology, China. His cur rent research interests include non-traditional processing technology.
    Hang Gao is a professor at Dalian University of Technology, China. He received His Ph.D. from Northeastern University. His research interests include intelligent manufacturing and manufacturing automation, superhard materials and tools, and advanced surface technology.
    Tian-Yi Zhou is a student in the Ph.D. program in the school of mechanical engineering at Dalian University of Technology, China. His current research interests include non-traditional processing technology.
  • 基金资助:
    This research has been supported by NSFC-Liaoning Joint Fund (Grant Nos. U1708256, U1908232), and Fundamental Research Funds for the Central Universities (Grant No. DUT18GF104), Joint Fund of MOE and GAD (Grant No. 6141A02022133).

Smoothing strategy for corner of small curvature radius by abrasive waterjet machining

Jian-Feng Chen1, Ye-Min Yuan1, Hang Gao1, Tian-Yi Zhou1   

  1. 1 State Key Laboratory of High-Performance Precision Manufacturing, School of Mechanical Engineering, Dalian University of Technology, Dalian 116024, People's Republic of China
  • Received:2022-03-22 Revised:2023-01-13 Online:2023-09-09 Published:2023-09-09
  • Contact: Hang Gao,E-mail:gaohang@dlut.edu.cn E-mail:gaohang@dlut.edu.cn
  • Supported by:
    This research has been supported by NSFC-Liaoning Joint Fund (Grant Nos. U1708256, U1908232), and Fundamental Research Funds for the Central Universities (Grant No. DUT18GF104), Joint Fund of MOE and GAD (Grant No. 6141A02022133).

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摘要： Abrasive waterjet (AWJ) is widely applied in 2D machining as it offers high machining efficiency and low machining cost. However, machining a 3D surface, especially for a small curvature radius freeform surface (SCRFS), results in over-erosion of the corner, and has been one of the greatest issues of AWJ. To solve this problem, a local smoothing algorithm for SCRFS is developed by the junction of two linear segments at the corner by inserting cubic second-order B-spline to smooth the nozzle path and posture under the setting tolerance error, which is aimed to avoid over-erosion due to the change in dwell time. Analytical solutions of the smooth corner position and orientation of the nozzle path are obtained by evaluating a synchronization algorithm. According to the set tolerance error of the nozzle position and orientation, the interpolation of the smooth path of the corner meets the constraint conditions of the linear feed drive. Path simulation and experimental results show that the proposed method is validated by the experimental results and has been applied to the integral blisk machining of an aero-engine.

The full text can be downloaded at https://link.springer.com/article/10.1007/s40436-023-00443-3

关键词: 5-axis, Cubic B-splines, Overcut, Abrasive waterjet (AWJ), Corner smoothing

Abstract: Abrasive waterjet (AWJ) is widely applied in 2D machining as it offers high machining efficiency and low machining cost. However, machining a 3D surface, especially for a small curvature radius freeform surface (SCRFS), results in over-erosion of the corner, and has been one of the greatest issues of AWJ. To solve this problem, a local smoothing algorithm for SCRFS is developed by the junction of two linear segments at the corner by inserting cubic second-order B-spline to smooth the nozzle path and posture under the setting tolerance error, which is aimed to avoid over-erosion due to the change in dwell time. Analytical solutions of the smooth corner position and orientation of the nozzle path are obtained by evaluating a synchronization algorithm. According to the set tolerance error of the nozzle position and orientation, the interpolation of the smooth path of the corner meets the constraint conditions of the linear feed drive. Path simulation and experimental results show that the proposed method is validated by the experimental results and has been applied to the integral blisk machining of an aero-engine.

The full text can be downloaded at https://link.springer.com/article/10.1007/s40436-023-00443-3

Key words: 5-axis, Cubic B-splines, Overcut, Abrasive waterjet (AWJ), Corner smoothing

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