替

　　Name: Heng Gu

　　Ph. D, Qualified professor, Master supervisor

　　Address: Room 608-1, School of Mechanical Engineering

　　Phone: (86) 13291080365

　　Fax:

　　E-mail: guheng@ujs.edu.cn

Education

2012-2013 Master, School of Science and Engineering, The University of Manchester, UK 2013-2018 Ph.D. School of Science and Engineering, The University of Manchester, UK

Professional Experience

2018-2020, Post-doctor, Cardiff University, UK
2020-Present, Qualified professor, School of Mechanical Engineering, Jiangsu University, China

Social Academic Post

Reviewer for Journal of Laser Applications, Manufacturing letters, Micromachines, Proceedings of Mechanical Engineers, Part L: Journal of Materials: Design and Applications.

Research Interests

1.Laser powder bed fusion: process optimization for LPBF using composite materials to eliminate the formation of porosity and micro-cracking in order to enhance the mechanical properties of printed components; FEA modelling of the effect of supporting structures on the thermal stress induced deformation in LPBF; DEM-CFD modelling of powder spreading and laser-powder interaction during multiple material LPBF process, including investigation of multilayer and multitrack molten pool development and bead formation.

Fig.1. Multi-material LPBF and interfacial simulation

Fig.2. DEM-CFD simulation of functionally graded materials LPBF
2.Laser cladding/laser metal deposition: research on wire/powder-based laser cladding and laser metal deposition processes, as well as additive manufacturing of complex three-dimensional components using laser metal deposition; CFD modelling the gravity and pressure effects in laser metal deposition for potential additive manufacturing in space; investigated the heat and mass transfer inside the molten pool under surface tension and gravity in low gravity situation, and the influence of low pressure on vaporization during laser metal deposition.

Fig.3. Comparison between simulated and experimental results of LMD in 3g position
3.Laser welding: research on narrow gap laser welding and narrow gap laser welding of dissimilar materials; investigated the effects of process parameters on defects formation including porosity and lack of fusion with side walls; CFD modelling of molten pool dynamics and fusion zone formation in multi-pass narrow gap laser welding

Fig.4. Narrow gap laser welding and multi-pass cross-sectional simulation

Teaching Courses

1. Specialty Chinese (Undergraduate course, oversea students)
2. Advanced Chinese (Undergraduate course, oversea students)

Honours and Awards

Main Research Projects

1. Ultrasonic vibration-assisted high-performance functionally graded materials additive manufacturing (No. SBK2021044646), Natural Science Foundation of Jiangsu Province, 2021-2024.

Main Scientific Publications

(1) Heng Gu*; Chao Wei; Lin Li; Quanquan Han; Rossitza Setchi*; Michael Ryan; Qian Li; Multi-physics modelling of molten pool development and track formation in multi-track, multi-layer and multi-material selective laser melting, International Journal of Heat and Mass Transfer, 2020, 151: 119458.
(2) Heng Gu; Tapio Väistö; Lin Li*; Numerical and experimental study on the molten pool dynamics and fusion zone formation in multi-pass narrow gap laser welding, Optics and Laser Technology, 2020, 126: 106081.
(3) Heng Gu; Lin Li*; Computational fluid dynamic simulation of gravity and pressure effects in laser metal deposition for potential additive manufacturing in space, International Journal of Heat and Mass Transfer, 2019, 140: 51-65.

Patents

Plan for Overseas Master & Ph. D

One Master