Modification of diamond tool by focused ion beam in dry single-point diamond turning

被引：7
|
作者：
Du, Jianbiao [1 ]
Liu, Hanzhong [1 ]
Yang, Ning [2 ]
Chen, Xiaozhou [3 ]
Zong, Wenjun [1 ]
机构：
[1] Harbin Inst Technol, Ctr Precis Engn, Harbin 150001, Peoples R China
[2] Sichuan Precis & Ultraprecis Machining Engn Techno, Chengdu 610200, Peoples R China
[3] China Univ Min & Technol, Sch Mech Elect & Informat Engn, Beijing 100083, Peoples R China
来源：
APPLIED SURFACE SCIENCE | 2023年 / 637卷
基金：
中国国家自然科学基金;
关键词：
Modified diamond tools; Focused ion beam; Tool wear inhibition; Dry single point diamond turning; Al6061; alloy; GENERALIZED GRADIENT APPROXIMATION; TOTAL-ENERGY CALCULATIONS; GRAPHENE; METAL; LIFE; NH3; CO;
D O I：
10.1016/j.apsusc.2023.157882
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The modified diamond tools (MDT) by focused ion beam (FIB) can reduce tool wear to a certain extent while avoiding the pollution of traditional cutting fluid. This paper investigates the dry single-point diamond turning (DSPDT) process for Al6061 alloy with MDT. DSPDT tests showed that MDT produced lower cutting forces and generated smoother machined surfaces. Furthermore, MDT has a lighter wear compared with the unmodified diamond tools. The reasons why the cutting performance of MDT is better than the unmodified diamond tools are the reduced surface energy of modified diamonds proved by the first principle calculations and contact angle tests, and the change of the C-C bond energy and bond length according to the first principle calculations. Therefore, it is feasible and promising to apply the MDT in the DSPDT of Al6061 alloy, which will contribute to carbon neutralization manufacturing.
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页数：15
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