Proceedings of the
9th International Conference of Asian Society for Precision Engineering and Nanotechnology (ASPEN2022)
15 – 18 November 2022, Singapore

Improving the Machinability of Brittle Materials by Ion Implantation

Jinshi Wang1, Fengzhou Fang1,2,a and Xiaodong Zhang1

1State Key Laboratory of Precision Measuring Technology and Instruments, Laboratory of Micro/Nano Manufacturing Technology (MNMT), Tianjin University, Tianjin, 300072, China

2Centre of Micro/Nano Manufacturing Technology (MNMT-Dublin), University College Dublin, Dublin 4, Ireland


Brittle materials find extensive applications in modern optical systems and precision engineering. Compared with traditional machining methods such as grinding and polishing, ultra-precision diamond cutting has the advantages of large efficiency and generating complex surfaces. However, the fracture damage and tool wear are critical issues that seriously influence the surface integrity. This paper presents a method improving the machinability of brittle materials via ion implantation, which can enhance the ductility and reduce the mechanical strength of the workpiece. The principle is introduced at first, then, the effect of surface modification on the material removal process during nanometric cutting is investigated by molecular dynamics simulation. Finally, several experimental examples on both single crystals and ceramics are provided to demonstrate the capability of the proposed method.

Keywords: Diamond cutting, Brittle materials, Ion implantation, Surface modification

PDF Download