Wear Mechanism of High-Speed Turning Ti-6Al-4V with TiAlN and AlTiN Coated Tools in Dry and MQL Conditions

Jin Yang Xu; Zhi Qiang Liu; Qing Long An; Ming Chen

doi:10.4028/www.scientific.net/AMR.497.30

Paper Titles

Influence of Cup Wheel Grinding and Etching Pretreatment on Residual Stress and Surface Topography for Coated Cemented Carbide Tools
p.10

Precision Grinding of Structured Tungsten Carbide Mold
p.15

Analysis on Kinematic Characteristics of Precision Balls Grinding
p.20

Study on Machining Characteristics of Sawing Al₂O₃ Ceramic with Diamond Cut-Off Wheel
p.25

Wear Mechanism of High-Speed Turning Ti-6Al-4V with TiAlN and AlTiN Coated Tools in Dry and MQL Conditions
p.30

Study on Fracture Performance of In Situ Growth Whisker Toughened Composite Ceramic Tool
p.35

The Performances of Different Coated Carbide Drills when Drilling a Cast Nickel-Based Alloy
p.41

New Approach for Noncircular Following Grinding of Crankshaft Pin
p.46

Study on the Process of Gear Shaft Formed by Cross Wedge Rolling Based on Deform
p.56

HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 497Wear Mechanism of High-Speed Turning Ti-6Al-4V...

Wear Mechanism of High-Speed Turning Ti-6Al-4V with TiAlN and AlTiN Coated Tools in Dry and MQL Conditions

Abstract:

The TiAlN and AlTiN coated carbide cutting tools were adopted for high-speed turning of α+β phase titanium alloy Ti-6Al-4V. Both the wear pattern and wear mechanism were investigated in this research. Results show that: MQL condition can greatly prolong the tool life of AlTiN coated carbide tool but has minor influence on improving the tool life of TiAlN carbide tool. AlTiN coated carbide tool was found to be qualified to obtain better cutting performance and longer tool life and is more suitable for processing titanium alloy TC4 compared with TiAlN coated tool under the same cutting parameters. In dry cutting condition, both adhesive and oxidation wear were observed to be the main wear types in these two coated carbide tools. However, in MQL condition, TiAlN coated tool may only suffer adhesive wear while the AlTiN coated carbide tool suffer adhesive, diffusion and oxidation wear.