Microstructure and performance of self-lubrication CBN grinding wheels

被引：1

作者：

Ding, Wenfeng ^{[1
]}

Xu, Jiuhua ^{[1
]}

Chen, Zhenzhen ^{[1
]}

Yang, Changyong ^{[1
]}

Su, Honghua ^{[1
]}

Fu, Yucan ^{[1
]}

机构：

[1] College of Mechanical and Electrical Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, Jiangsu, 210016, China

来源：

International Journal of Abrasive Technology | 2012年 / 5卷 / 01期

关键词：

Titanium alloys - Bending strength - Lubrication - Copper alloys - Grinding wheels - Tin alloys - Grinding (machining) - Microstructure;

D O I：

10.1504/IJAT.2012.046817

中图分类号：

学科分类号：

摘要：

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. Copyright © 2012 Inderscience Enterprises Ltd.

引用

页码：62 / 71