LI Zhengwei, CHEN Jie, AN Qinglong. Study on Coated Tool Wear in High-Speed MQL Machining of TC4 Titanium Alloy[J]. Aeronautical Manufacturing Technology, 2018, 61(6): 70-77.
LI Zhengwei, CHEN Jie, AN Qinglong. Study on Coated Tool Wear in High-Speed MQL Machining of TC4 Titanium Alloy[J]. Aeronautical Manufacturing Technology, 2018, 61(6): 70-77. DOI: 10.16080/j.issn1671-833x.2018.06.070.
TC4 titanium alloy was cut in high-speed under dry and minimal quantity lubrication (MQL) conditions
with TiAlN-F
AlTiN-ML and (nc-AlTiN)/(a-Si
3
N
4
) carbide coating tools. Tools life were compared
tools wear and failure modes were analysed
tool wear mechanisms were studied. The results showed that different coatings had little effect on tool life under dry cutting condition. Under the MQL(Minimal Quantity Lubrication) condition
the coating could significantly reduce tool wear and improve tool life
and (nc-AlTiN)/(a-Si
3
N
4
) coating has the best performance. In high-speed cutting of TC4 titanium alloy
wear mechanism was more complex
due to the interaction of various tool wear patterns. Adhesive wear
oxidative wear
diffusion wear
abrasive
wear were main tool wear
chipping and coating spalling were main failure modes.