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Mass Production Of Hfcvd Diamond-Coated Wire-Drawing Dies Without Filament Through The Hole

Author

Listed:
  • XIN SONG

    (School of Mechanical Engineering, Shanghai Jiao Tong University, Shanghai 20024, P. R. China)

  • CHENG-CHUAN WANG

    (School of Mechanical Engineering, Shanghai Jiao Tong University, Shanghai 20024, P. R. China)

  • XIN-CHANG WANG

    (School of Mechanical Engineering, Shanghai Jiao Tong University, Shanghai 20024, P. R. China)

  • FANG-HONG SUN

    (School of Mechanical Engineering, Shanghai Jiao Tong University, Shanghai 20024, P. R. China)

Abstract

Hot filament chemical vapor deposition (HFCVD) diamond-coated small aperture wire-drawing dies from Φ0.8 to Φ2mm are in high demand. A new deposition technique without filaments through the inner hole of wire-drawing dies is proposed, accompanied with the specially designed fixtures. Temperature distribution on the deposition surfaces is studied by computational fluid dynamics (CFD) simulation based on the finite volume method (FVM); both case study and mass production simulations are accomplished. Excellent performance and uniform multilayer MCD/NCD/MCD/NCD films are successfully deposited on the inner-hole surfaces of total 16 cemented carbide (WC-6wt.%Co) wire-drawing dies with an aperture of Φ2.0mm in one batch. Drawing results of gas shield welding wires show that the lifespan of the multilayer diamond coated wire-drawing dies is about 20 times of the uncoated cemented carbide dies and 2 times of the monolayer MCD coated dies.

Suggested Citation

  • Xin Song & Cheng-Chuan Wang & Xin-Chang Wang & Fang-Hong Sun, 2021. "Mass Production Of Hfcvd Diamond-Coated Wire-Drawing Dies Without Filament Through The Hole," Surface Review and Letters (SRL), World Scientific Publishing Co. Pte. Ltd., vol. 28(03), pages 1-14, March.
    • Handle: RePEc:wsi:srlxxx:v:28:y:2021:i:03:n:s0218625x21500062
    DOI: 10.1142/S0218625X21500062
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