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Preparation of Al2O3/Ti(C,N)/ZrO2/CaF2@Al(OH)3 Ceramic Tools and Cutting Performance in Turning
被引:8
作者:
Chen, Zhaoqiang
[1
,2
]
Zhang, Shuai
[1
]
Guo, Runxin
[1
]
Ji, Lianggang
[1
]
Guo, Niansheng
[1
]
Li, Qi
[1
]
Xu, Chonghai
[1
,2
]
机构:
[1] Qilu Univ Technol, Sch Mech & Automot Engn, Shandong Acad Sci, Jinan 250353, Peoples R China
[2] Qilu Univ Technol, Key Lab Adv Mfg & Measurement & Control Technol L, Shandong Acad Sci, Jinan 250353, Peoples R China
来源:
基金:
中国国家自然科学基金;
关键词:
ceramic tool;
ZrO2;
whisker;
coating;
cutting performance;
wear mechanisms;
MECHANICAL-PROPERTIES;
COMPOSITES;
FRICTION;
D O I:
10.3390/ma12233820
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:
Aiming at the contradiction between the lubricating performance and mechanical performance of self-lubricating ceramic tools. CaF2@Al(OH)(3) particles were prepared by the heterogeneous nucleation method. An Al2O3/Ti(C,N) ceramic tool with CaF2@Al-2(OH)(3) particles and ZrO2 whiskers was prepared by hot press sintering (frittage). The cutting performances and wear mechanisms of this ceramic tool were investigated. Compared with the Al2O3/Ti(C,N) ceramic tool, the Al2O3/Ti(C,N)/ZrO2/CaF2@Al(OH)(3) ceramic tool had lower cutting temperatures and surface roughness. When the cutting speed was increased from 100 m/min to 300 m/min, a lot of CaF2 was smeared onto the surface of the ceramic tool, and the flank wear of the Al2O3/Ti(C,N)/ZrO2/CaF2@Al(OH)(3) ceramic tool was reduced. The main wear mechanisms of the Al2O3/Ti(C,N)/ZrO2/CaF2@Al(OH)(3) ceramic tool were adhesive wear and micro-chipping. The formation of solid lubricating film and the improvement of fracture toughness by adding ZrO2 whiskers and CaF2@Al(OH)(3) were important factors for the Al2O3/Ti(C,N)/ZrO2/CaF2@Al(OH)(3) ceramic tool to have better cutting performances.
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页数:11
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