TY - JOUR
T1 - Novel hybrid machining process of titanium alloy for texturing high-quality microstructure array surfaces
AU - Du, Hanheng
AU - Chen, Huawei
AU - Zhu, Zhiwei
AU - Wang, Zuankai
AU - Suet To, To
N1 - Funding Information:
This work was supported by the Research Grants Council of the Hong Kong Special Administrative Region , China (Project No.: PolyU 15221322 ), the National Natural Science Foundation of China (Project No.: U19A20104 ), the Shenzhen Science and Technology Program (Project No.: JCYJ20210324131214039 ), and State Key Laboratory of Ultra-precision Machining Technology .
Funding Information:
This work was supported by the Research Grants Council of the Hong Kong Special Administrative Region, China (Project No.: PolyU 15221322), the National Natural Science Foundation of China (Project No.: U19A20104), the Shenzhen Science and Technology Program (Project No.: JCYJ20210324131214039), and State Key Laboratory of Ultra-precision Machining Technology.
Publisher Copyright:
© 2023 Elsevier B.V.
PY - 2023/6/15
Y1 - 2023/6/15
N2 - Titanium alloys are widely applied in the aerospace field, such as nacelle and landing gear. As the typical difficult-to-machining materials, generating microstructure arrays with high quality on their surfaces still face a challenge. For solving this problem, this study proposes a novel hybrid machining process to texture microstructure arrays on titanium alloy surfaces. In this hybrid machining process, laser-assisted diamond turning is used to improve machinability by softening material surfaces, and slow-tool-servo cutting is used to generate various microstructure arrays. Experimental results showed the sine-shaped and honeycomb-shaped microstructure arrays were smoothly generated on the titanium alloy surfaces. The average machining error is lower than 3 %, which demonstrates the high machining accuracy of the hybrid machining process. The surface roughness (Sa) is lower than 30 nm, which demonstrates the high surface quality. Besides, the phase change and grain size are also in-detailed investigated to analyze the effects of the proposed hybrid machining process on the workpiece material. This study provides an efficient and flexible machining method to texture microstructure arrays on titanium alloy surfaces, which can be directly applied to surface modification of industrial production.
AB - Titanium alloys are widely applied in the aerospace field, such as nacelle and landing gear. As the typical difficult-to-machining materials, generating microstructure arrays with high quality on their surfaces still face a challenge. For solving this problem, this study proposes a novel hybrid machining process to texture microstructure arrays on titanium alloy surfaces. In this hybrid machining process, laser-assisted diamond turning is used to improve machinability by softening material surfaces, and slow-tool-servo cutting is used to generate various microstructure arrays. Experimental results showed the sine-shaped and honeycomb-shaped microstructure arrays were smoothly generated on the titanium alloy surfaces. The average machining error is lower than 3 %, which demonstrates the high machining accuracy of the hybrid machining process. The surface roughness (Sa) is lower than 30 nm, which demonstrates the high surface quality. Besides, the phase change and grain size are also in-detailed investigated to analyze the effects of the proposed hybrid machining process on the workpiece material. This study provides an efficient and flexible machining method to texture microstructure arrays on titanium alloy surfaces, which can be directly applied to surface modification of industrial production.
KW - Grain refinement
KW - Honeycomb-shaped microstructure array
KW - Laser-assisted machining
KW - Sine-shaped microstructure array
KW - Surface modification
KW - Titanium alloy
UR - http://www.scopus.com/inward/record.url?scp=85152634638&partnerID=8YFLogxK
U2 - 10.1016/j.surfcoat.2023.129494
DO - 10.1016/j.surfcoat.2023.129494
M3 - Journal article
AN - SCOPUS:85152634638
SN - 0257-8972
VL - 462
JO - Surface and Coatings Technology
JF - Surface and Coatings Technology
M1 - 129494
ER -