Changyong Yang
Nanjing University of Aeronautics and Astronautics
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Publication
Featured researches published by Changyong Yang.
International Journal of Abrasive Technology | 2012
Wenfeng Ding; Jiuhua Xu; Changyong Yang; Honghua Su; Yucan Fu
Cu-Sn-Ti alloy, CBN grains and graphite particles were mixed, moulded and sintered to prepare the self-lubrication CBN abrasive composite blocks and grinding wheels. The mechanical strength of the composite blocks was measured. The fracture morphology and the interfacial microstructure of blocks were characterised. Dressing experiments were conducted. The graphite film was observed on the working surface. Finally, the grinding temperature of self-lubrication CBN grinding wheel was compared with that of the vitrified counterpart. The obtained results show that the bending strength of the composite blocks reaches 116 MPa in case of 5 wt.% graphite particles. Chemical joining has happened within the interface of CBN/Cu-Sn-Ti and graphite/Cu-Sn-Ti. Graphite film has been formed successfully and spread to the working layer surface after dressing. The grinding temperature of the self-lubrication CBN wheel is lower than that of the vitrified counterparts. All this indicates the potential of the graphite self-lubrication CBN grinding wheels in machining difficult-to-cut materials.
Advanced Materials Research | 2012
Zhou Chen; Wen Feng Ding; Jiu Hua Xu; C.J. Song; Yucan Fu; Changyong Yang
Fabrication experiments of porous composite-bonded CBN wheels were conducted using alumina (Al2O3) bubbles, CBN grains, Cu-Sn-Ti alloy and graphite particles. Influence of sintering parameters and porosity on the bending strength of the CBN composite blocks was measured and analyzed. Dressing and grinding practice was carried out. The results show that the optimal sintering temperature of the CBN composite blocks is 880°C. When the porosity of composite blocks is 8-45 %, the strength reaches 51-103 MPa. Regular shape of the pores is obtained after dressing. Both the grinding force and grinding temperature of the composite-bonded CBN wheel are lower than that of the vitrified one under the same grinding condition, which indicates the better grinding performance of the new-type porous composite-bonded CBN wheel.
The International Journal of Advanced Manufacturing Technology | 2013
Wenfeng Ding; Jiuhua Xu; Zhou Chen; Changyong Yang; C.J. Song; Yucan Fu
Materials Science and Engineering A-structural Materials Properties Microstructure and Processing | 2013
Wenfeng Ding; Jiuhua Xu; Qing Miao; Changyong Yang
Wear | 2015
Wenfeng Ding; Yejun Zhu; Liangchi Zhang; Jiuhua Xu; Yucan Fu; Weidong Liu; Changyong Yang
Materials & Design | 2015
Yejun Zhu; Wenfeng Ding; Jiuhua Xu; Changyong Yang
Precision Engineering-journal of The International Societies for Precision Engineering and Nanotechnology | 2018
Chaojie Liu; Wenfeng Ding; Tianyu Yu; Changyong Yang
The International Journal of Advanced Manufacturing Technology | 2013
Qing Miao; Wenfeng Ding; Jiuhua Xu; Changyong Yang; Yucan Fu
Ceramics International | 2016
Qing Miao; Wenfeng Ding; Yejun Zhu; Jiuhua Xu; Changyong Yang
Chinese Journal of Aeronautics | 2014
Wenfeng Ding; Biao Zhao; Jiuhua Xu; Changyong Yang; Yucan Fu; Honghua Su
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