Academic Staff

Brief Biosketch

Dr. Chunjin Wang is currently an Assistant Professor in the Department of Industrial and Systems Engineering (ISE) at The Hong Kong Polytechnic University (PolyU). He received his bachelor and PhD degree from Xiamen University in 2010 and 2015, respectively. He joined the State Key Lab of Ultra-precision Machining Technology in ISE at PolyU in 2015, initially as a postdoctoral fellow. Then he became a research fellow in 2018 and a research assistant professor in 2020.

Dr. Wang’s research interests include polishing, ultra-precision machining equipment and instrumentation, advanced optics manufacturing, and functional surface engineering. He has published more than 150 SCI refereed journal papers，including International Journal of Machine Tools and Manufacture, International Journal of Extreme Manufacturing, Advanced Science, etc.

Dr. Wang has secured several external competitive grants as PI including Hong Kong Research Grants Council General Research Funding (GRF), Research Grants Council Early Career Scheme (ECS), Innovation and Technology Fund - Innovation and Technology Support Programme (ITF-ITSP), Shenzhen-Hong Kong-Macau Joint Funding (Type C), Guangdong Provincial Natural Science Foundation Project and Collaborative Research Projects.

Research Specialties

• Polishing;
• Ultra-precision Machining Equipment and Instrumentation;
• Advanced Optics Manufacturing;
• Ultrafast Laser Micro/Nano Machining;
• Functional Surface Engineering.

Selected Journal Publications

1. Zhang Z, Yuan S, Cheung CF*, Wu W, Li Z, Li K, Wang C*. High-Efficiency Submerged Air Jet Chemical Mechanical Polishing at the Atomic and Close-to-Atomic Scale. Journal of Materials Processing Technology. 2026:119195.

2. Zhang Q, Li K, Zhang X, Gao R, Cheung CF, Wang C*. Effects of picosecond laser ablation and surface modification on the surface/interface characteristics and removal performance of 4H-SiC. Journal of Materials Science & Technology. 2025;234:199-216.

3. Chen R, Cheung CF*, Zhang Q, Luo T, Gao R, Zhou W*, Wang C*. Ultra‐Sensitive and Linear Flexible Pressure Sensors with Tri‐Scale Graded Microstructures for Advanced Health Monitoring and Robotic Perception. Advanced Science. 2025:e16810.

4. Gao R, Loh YM, Li K, Chen R, Jiang C, Cheung CF, Wang C*. Study on the material removal mechanism of cemented carbide magnetic materials in magnetic field-assisted mass polishing. Tribology International. 2025;208:110647.

5. Chen R, Wang C*, Luo T, Xu W, Zhang Q, Zhou J, Gao R, Cheung CF*, Zhou W*. Model-driven 3D laser focus shifting for precision fabrication of microstructures in transparent flexible polymers. International Journal of Machine Tools and Manufacture. 2025:104310.

6. Zhang Z, Cheung CF*, Ho LT, Wang C*. Mechanistic insights and modeling of tool mark removal in fluid jet polishing for ultra-precision machining. Wear. 2025:206146.

7. Sun Y, Wang C*, Ren C, Zhang D, Li K, Cheung CF, Chen Z*. Multiscale chemical ordering heterogeneity facilitates exceptional strength and ductility in additively manufactured Ti-added AlCoCrFeNi2. 1 high-entropy alloys at intermediate temperatures. International Journal of Plasticity. 2025:104373.

8. Zhang Z, Cheung CF*, Guo J, Wang C*. Pressure-dependent shape adaptive multi-jet polishing for edge effect restraint. Journal of Materials Processing Technology. 2025;337:118734.

9. Zhang Z, Cheung CF*, Guo J, Wang C*. Pressure-dependent material removal rate model of fluid jet polishing. International Journal of Mechanical Sciences. 2024;281:109517.

10. Yee Man Loh, Chunjin Wang*, Rui Gao, Lai Ting Ho, Chi Fai Cheung*.  Magnetic Field-assisted Batch Polishing Method for the Mass Production of Precision Optical Glass Components. Light: Advanced Manufacturing.2024,5(3)

11. Kangsen Li, Chunjin Wang*, Feng Gong, Chi Fai Cheung*, Zibin Chen, Zuankai Wang*. Coating-Free Superhydrophobic Hard Surfaces by Electric Discharge Machining with a Magnetic-assisted Self-assembly Sheet electrode. ACS Applied Materials & Interfaces. 2024, 16(12):15548-57.

12. Liang X, Zhang C, Cheung CF*, Wang C*, Li K, Bulla B. Micro/nano incremental material removal mechanisms in high-frequency ultrasonic vibration-assisted cutting of 316L stainless steel. International Journal of Machine Tools and Manufacture. 2023,191:104064.

13. Zhang Z, Wang C*, Guo J, Cheung CF*. Micro-milling tool mark removal mechanism by fluid jet polishing and its application for the precision manufacturing of micro-fluidic chip molds. Tribology International. 2023,189:108913.

14. Loh YM, Gao R, Cheung CF, Chen Y, Li X, Li X, Tsoi JK, Wang C*. A novel magnetic field assisted automatic batch polishing method for dental ceramic crowns. Ceramics International. 2023, 49(16):26540-7

15. Wang C*, Loh YM, Cheung CF*, Wang S, Chen K, Ho LT, Cheng E. Magnetic field-assisted batch superfinishing on thin-walled components. International Journal of Mechanical Sciences. 2022;223:107279.

16. Wang C, Zhang Z, Cheung CF*, Luo W, Loh YM, Lu Y, Kong L, Wang S. Maskless fluid jet polishing of optical structured surfaces. Precision Engineering. 2022;73:270-83.

17. Wang CJ, Cheung CF*, Ho LT, Loh YM. Development of a fluid line-jet polishing process for rotational axisymmetric surfaces. Journal of Manufacturing Processes. 2021;61:15-24.

18. Wang C, Cheung CF, Ho LT, Yung KL, Kong L. A novel magnetic field-assisted mass polishing of freeform surfaces. Journal of Materials Processing Technology. 2020; 279:116552.

19. Wang CJ, Cheung CF, Ho LT, Liu MY, Lee WB. A novel multi-jet polishing process and tool for high-efficiency polishing. International Journal of Machine Tools and Manufacture. 2017; 115:60-73.

20. Wang CJ, Cheung CF, Liu MY. Numerical modeling and experimentation of three dimensional material removal characteristics in fluid jet polishing. International Journal of Mechanical Sciences. 2017; 133:568-77.

Honours/Awards/Prizes

• Gold Medal of the Aisa International Invention and Innovation Award. (2023)
• Best paper award in the 9th International Conference of Asian Society for Precision Engineering and Nanotechnology (ASPEN), Singapore. (2022)
• Best paper award in the 8th International Conference on Nanomanufacturing (NanoMan) & The 4th AET Symposium on ACSM and Digital Manufacturing, Virtual. (2022)
• 2021-22 Hong Kong Awards for Industries: Equipment and Machinery Design Certificate of Merit.
• Young Researcher Award at 8th International Conference of Asian Society for Precision Engineering and Nanotechnology (ASPEN), Matsue, Japan. (2019)
• Special Merit Award, Romanian Association for Nonconventional Technologies in the 47th International Exhibition Inventions New Techniques & Products in Geneva, Switzerland (2019).
• Special Merit Award-Excellence Innovation Award, University of Politechnica of Bucharest in the 47th International Exhibition Inventions New Techniques & Products in Geneva, Switzerland (2019).
• A Silver medal in the 47th International Exhibition Inventions New Techniques & Products in Geneva, Switzerland (2019).
• Best paper award in The 14th China-Japan International Conference on Ultra-Precision Machining Process (CJUMP), Harbin, China. (2018)