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Fabrication of PCD micro end mill for machining hard and brittle material

  • Xian WuEmail author
  • Liang Li
  • Ning He
  • Guolong Zhao
  • Feng Jiang
ORIGINAL ARTICLE
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Abstract

The fabrication of a superhard diamond tool is the key factor for micro milling of miniature parts made of hard and brittle material. In this paper, the polycrystalline diamond (PCD) micro end mill is fabricated with three steps. First, the PCD plate is welded on the tool shank with the high-frequency induction welding process. Then, the PCD micro end mill is pre-formed with wire electrical discharge machining to generate its main shape and structure. Finally, the PCD micro end mill is further sharpened with a diamond wheel to improve the tool quality. The multistep fabrication process for mass producing the PCD tool can obtain the satisfied efficiency and tool quality. The tool performance is evaluated with micro milling experiments on cemented carbide. The machined surface free of brittle fracture defects is achieved.

Keywords

Tool fabrication PCD micro end mill Micro milling Cemented carbide 

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Notes

Funding information

This work was supported by the National Natural Science Foundation of China (51705249), Natural Science Foundation of Fujian province (2016J01236), and the Scientific Research Funds of Huaqiao University (Z18Y0026).

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Copyright information

© Springer-Verlag London Ltd., part of Springer Nature 2019

Authors and Affiliations

  • Xian Wu
    • 1
    Email author
  • Liang Li
    • 2
  • Ning He
    • 2
  • Guolong Zhao
    • 2
  • Feng Jiang
    • 3
  1. 1.College of Mechanical Engineering and AutomationHuaqiao UniversityXiamenChina
  2. 2.College of Mechanical and Electrical EngineeringNanjing University of Aeronautics and AstronauticsNanjingChina
  3. 3.Institute of Manufacturing EngineeringHuaqiao UniversityXiamenChina

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