TY - GEN
T1 - Electrochemical oxidation assisted ultra-precision optical microstructure machining on Tungsten Carbide superalloy
AU - Guo, Weijia
AU - Huang, Rui
AU - Senthil Kumar, A.
AU - Tianfeng, Zhou
N1 - Publisher Copyright:
© European Society for Precision Engineering and Nanotechnology, Conference Proceedings - 22nd International Conference and Exhibition, EUSPEN 2022. All rights reserved.
PY - 2022
Y1 - 2022
N2 - Tungsten carbide (WC) superalloy has been widely used as an excellent mold material for its high hardness, good wear and corrosion resistance. However, the high hardness leads to the difficulty of machining optically qualified complex surfaces. Ultra-precision machining (UPM) technique uses crystalline diamond as a cutting tool, which enables the generation of optical surface in nanometre scale. Despite this, diamond cutting tool suffers both mechanical and chemical wear when cutting WC. In this study, an integrated method combining electrochemical oxidation and ultra-precision machining has been proposed. It is demonstrated that surface modification by electrochemical oxidation can drastically reduce the tool wear of the diamond tool. The surface morphology of the cross-section and surface composition were investigated. The results present that the material structure is modified and thus the hardness of the target area is effectively reduced, in turn extending diamond tool life.
AB - Tungsten carbide (WC) superalloy has been widely used as an excellent mold material for its high hardness, good wear and corrosion resistance. However, the high hardness leads to the difficulty of machining optically qualified complex surfaces. Ultra-precision machining (UPM) technique uses crystalline diamond as a cutting tool, which enables the generation of optical surface in nanometre scale. Despite this, diamond cutting tool suffers both mechanical and chemical wear when cutting WC. In this study, an integrated method combining electrochemical oxidation and ultra-precision machining has been proposed. It is demonstrated that surface modification by electrochemical oxidation can drastically reduce the tool wear of the diamond tool. The surface morphology of the cross-section and surface composition were investigated. The results present that the material structure is modified and thus the hardness of the target area is effectively reduced, in turn extending diamond tool life.
KW - Ultra-precision machining
KW - electrochemical oxidation
KW - tungsten carbide
UR - https://www.scopus.com/pages/publications/85145588460
M3 - Conference contribution
AN - SCOPUS:85145588460
T3 - European Society for Precision Engineering and Nanotechnology, Conference Proceedings - 22nd International Conference and Exhibition, EUSPEN 2022
SP - 547
EP - 548
BT - European Society for Precision Engineering and Nanotechnology, Conference Proceedings - 22nd International Conference and Exhibition, EUSPEN 2022
A2 - Leach, Richard K.
A2 - Akrofi-Ayesu, A.
A2 - Nisbet, C.
A2 - Phillips, Dishi
PB - euspen
T2 - 22nd International Conference of the European Society for Precision Engineering and Nanotechnology, EUSPEN 2022
Y2 - 30 May 2022 through 3 June 2022
ER -