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《Diamond & Abrasives Engineering》 2017-03
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Performance evaluation of self-propagating high-temperature synthesized diamond grinding head

DUAN Duanzhi;LUO Weidong;XIAO Bing;HAN Linlin;BU Yue;School of Mechanical and Electrical Engineering,Nanchang University;College of Mechanical and Electrical Engineering,Nanjing University of Aeronautics and Astronautics;Jiangxi Police Institute;  
To study the influence of self-propagating process on the performance of diamond grinding head,high-frequency induction heating was used to induce self-propagating systhesis of Al,Ti,Cu,Ni and Sn powder and produce the heads.Microstructure of the heads and the bonding interface between diamond and metal matrix were analyzed.Grinding experiments were implemented to study the performance of heads.Results show that high-frequency induction helps to reduce the pre-heating time and reaction time,thus increasing efficiency,and that Ni is a key element without which the reaction could not start.It is also found that diamond grains bond well with metal bonds,and that C and Ti diffuses and aggregates across the interface.In conclusion,the comprehensive processing performance of diamond grinding head is the best when the mass fraction of Al+Ti is 32%.
【Fund】: 江苏省产学研合作前瞻性联合研究项目(项目编号:BY2016003-15 BY2015003-02 BY2014003-18BY2014003-02 BY2014003-11 BY2013003-15 BY2013003-14 BY2013003-04);; 江苏省产业技术研究院产业重大原创性技术创新项目(项目编号:BO2015005);; 江西省自然科学基金项目(项目编号:20171BAB216032)
【CateGory Index】: TG747
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