NDLI: Investigation on the generation of the medium-frequency waviness error in flycutting based on 3D surface topography

Content Provider	Springer Nature Link
Author	Miao, Jianguo Yu, Deping An, Chenhui Ye, Fengfei Yao, Jin
Copyright Year	2016
Abstract	Undesirable medium-frequency waviness error along the cutting direction was often left on the machined surface of KDP crystals adopting ultraprecision single-point diamond flycutting (SPDF), reducing the optical performance of KDP crystals and restricting their capability in the inertial confinement fusion (ICF). In order to reduce such medium-frequency waviness error, an indirect method for investigating the generation of the error was proposed in this paper. The tool-tip vibration was indirectly extracted by combining the intermittent cutting trajectory of the flycutting process and the medium-frequency waviness error, which was extracted from the 3D surface topography using 2D wavelet transform method. The main frequency of the extracted tool-tip vibration was calculated and compared with the modals of the machine tool spindle system, which was obtained by FEM analysis and modal test. Finally, an improved spindle system was proposed based on the FEM analysis, and contrast tests between origin and improved machine tool were carried out. Results show that the tool-tip vibration can be effectively extracted by the proposed method, which deduces that the vibration that produced the medium-frequency waviness error is mainly generated by the sixth-order modal of the spindle system. In addition, the quality of the machined surface has been greatly improved with the improved spindle system.
Starting Page	667
Ending Page	675
Page Count	9
File Format	PDF
ISSN	02683768
Journal	The International Journal of Advanced Manufacturing Technology
Volume Number	90
Issue Number	1-4
e-ISSN	14333015
Language	English
Publisher	Springer London
Publisher Date	2016-09-06
Publisher Place	London
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Flycutting Medium-frequency waviness error 3D surface topography Tool-tip vibration Industrial and Production Engineering Media Management Mechanical Engineering Computer-Aided Engineering (CAD, CAE) and Design
Content Type	Text
Resource Type	Article
Subject	Industrial and Manufacturing Engineering Control and Systems Engineering Mechanical Engineering Computer Science Applications Software

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