Academic Staff

Brief Biosketch

Professor Jianguo Lin graduated with a BEng in Agriculture Machinery from Xinjiang Shihezi University in Feb. 1982, an MEng in Engineering Graphics from Taiyuan University of Technology in Jan. 1985, China, and, a PhD in The manufacturing of leather shoes from University of Sheffield (UK) in 1991. He then worked, as a post-doctoral researcher, on high-temperature creep and fatigue for 5 years. In 1996, he joined the University of Birmingham as a lecturer in the Geometric Modelling Group. In 2002, he moved to the Metal Forming Group at Birmingham and then commenced his independent research on metal forming. He was promoted to Senior Lecturer in 2004 and Reader in 2006 at Birmingham. In 2008, Lin took up a Full Chair at Imperial College London, as the Head of Mechanics of Materials Division and a member of departmental management committee (04.2008-10.2018); during which, he additionally held a Royal Academy of Engineering and Tata Steel Research Chair (2015-2020). He was elected as a Fellow of Royal Academy of Engineering (UK) in 2013 and European Academy of Science in 2017.

At Imperial College London, he established the Metal Forming and Materials Modelling research group, which had >50 researchers (PhDs, PDRAs and Academic staff) in 2022 working on a variety of metal forming technologies with an international reputation for creating fundamental theories, experimental methods and innovative technologies for forming lightweight added-value engineering components, and, providing innovative solutions for aerospace, automotive, rail, shipbuilding and metal-forming related industries. Professor Lin has been the principal investigator (PI) and secured >50 research grants, from £12k to £10 million per grant, worth a total of >£30 million and involved in projects worth over £110 million, from the UK government (EPSRC & Innovation-UK), European Commission (FP6, FP7 & H2020), UK and overseas industries. He has coordinated several large research projects (up to 21 partners over 9 countries). These projects have enabled him to establish a strong multidisciplinary team for creating novel fundamental theories and innovative forming technologies. The Group has received two Imperial President’s Medals for “Excellence in Research 2022 – Outstanding Research Team” and for “Excellence in External Engagement and Partnerships - 2016”. Lin was a founder director of 4 research centres and 2 joint research Labs fully funded by industry. He is also a founder director of 3 Imperial spin-off companies to commercialise the forming technologies he created, include HFQ®, Flextrude®, Wiextrude® and Sheetrude®.

Professor Lin is an author or/and co-author for >400 research papers, 2 books and >20 patents. He is a joint Editor-in-Chief of Int. J. of Lightweight Materials and Manufacture (2018-), Editor (2016-2022) & Honorary Editor (2022-) of Cogent Engineering, and an editorial board member for 6 international journals.

In September 2024, Professor Lin joined the Department of Industrial and Systems Engineering of The Hong Kong Polytechnic University (PolyU), as a Chair Professor, to continue his research in materials processing and modelling technologies.

Research Specialties

Recent and Key Publications

(+Corresponding author)

2024

1. S. Jiang , J. Lv⁺, Z. Shi , J. Lin, 2024, A study of dynamic recovery and recrystallisation mechanisms in aluminium alloy AA7050 at different thermomechanical processing conditions, Materials Science & Engineering A, 914, 147117, https://doi.org/10.1016/j.msea.2024.147117
2. J. Dear, R. Zhang⁺, Z. Shi and J. Lin, 2024, Benchmarking of implicit numerical integration methods for stiff unified constitutive equations in metal forming applications, Cogent Engineering, 11(1), 2371523. https://doi.org/10.1080/23311916.2024.2371523
3. S. Liu, Z. Shi⁺, J. Lin, H. Yu, 2024, A generalisable tool path planning strategy for free-form sheet metal stamping through deep reinforcement and supervised learning, J. of Intelligent Manufacturing, https://doi.org/10.1007/s10845-024-02371-w
4. S. Chen, R. Zhang, Z. Shi⁺, J. Lin, 2024, An improved DIC method for full-field strain measurement in tensile tests on aluminium alloys under hot stamping conditions, Int. J. of Lightweight Materials and Manuf. 7, 438-449. https://doi.org/10.1016/j.ijlmm.2024.01.001
5. S. Jiang, Z. Zhang, Z. Shi⁺, J. Lin, 2024, Unravelling dynamic recrystallisation behaviour in AA7050 under hot forging conditions, Materials Characterization, 211, 113887, https://doi.org/10.1016/j.matchar.2024.113887
6. J. Li, C. Tong, R. Zhang, Z. Shi⁺, J. Lin, 2024, A data-informed review of scientific and technological developments and future trends in hot stamping, Int. J. of Lightweight Materials and Manuf. 7, 327-343. https://doi.org/10.1016/j.ijlmm.2023.11.003
7. D. Chen, J. Lv⁺, C. Tong, X. Sun, X. Meng, Z. Fu, Q. Tu, L. Liu, Z. Shi, J. Lin, 2024, Optimisation of sideways extrusion for producing three-dimensional curved asymmetric aluminium alloy profile based on Grey-Taguchi relational analysis, J. of Materials Research and Technology, 28, pp4791-4804. https://doi.org/10.1016/j.jmrt.2024.01.069

2023

1. Z. Zhang, W. Zhou⁺, Z. Shi and J. Lin, 2023, Investigation of die designs on welding quality and billet material utilisation for multi-container extrusion of wide stiffened aluminium panels, Int. J. of Adv. Manuf. Tech. 127:4149–4162.  https://doi.org/10.1007/s00170-023-11774-7
2. Y. Wang, Z. Tan, W. Wang, J. Yu , J-H. Zheng , J. Lin, J. Jiang, 2023, Development of a solid-state extrusion-roll-bonding based additive manufacturing (ERB-AM) technology for aluminum alloys, Additive Manufacturing, 78 (2023) 103881, https://doi.org/10.1016/j.addma.2023.103881
3. J. Lv, Z. Shi⁺, J. Yu, W. Li, J. Lin, 2023, Numerical analysis of tooling design for extruding wide aluminium hollow profiles using multi‑container extrusion technology, Int. J. of Material Forming, 16:64, pp1-16. https://doi.org/10.1007/s12289-023-01787-8
4. R. Zhang , W. Wang , J. Lin⁺, T.A. Dean, 2023, An indirect hot form and Quench (HFQ) for manufacturing components of aluminum alloy sheets and comparison with direct HFQ, Int. J. of Machine Tools & Manufacture, 192, 104073, https://doi.org/10.1016/j.ijmachtools.2023.104073
5. Z. Zhang, C. Tong, W. Zhou, S. Jiang, J. Lv, Z. Shi⁺, J. Lin, 2023, Investigation of the mechanisms on the abnormal features observed in thermal-mechanical testing of AA6061 under extrusion conditions, Materials Science & Engineering A, 884, 145537, https://doi.org/10.1016/j.msea.2023.145537
6. C-L Tai, M-C Chen, T-F Chung, Y-L Yang, S-L Lee, T-C Tsao, Z. Shi, J. Lin, T-C Su, H-R Chen, J-R Yang⁺, 2023,  The nano-structural characterization of Ω and S phases in Al-5.1Cu-1.0 Mg-(0.4Ag) AA2024 aluminum alloys, Materials Science & Engineering A, 881, 145361. https://doi.org/10.1016/j.msea.2023.145361
7. E. Scharifi⁺, V. A. Yardley, U. Weidig, D. Szegda, J. Lin and K. Steinhoff, 2023, Hot Sheet Metal Forming Strategies for High-Strength Aluminum Alloys: A Review—Fundamentals and Applications, Adv. Eng. Mater., 2300141, 28 pages, https://doi.org/10.1002/adem.202300141
8. R. Zhang, J. Jiang⁺, J. Lin, V.A. Yardley, 2023, Investigation of variability in apparent values of materials properties in thermo-mechanical uniaxial tensile tests on sheet metals, J. of Manufacturing Processes, 101, pp737–754. https://doi.org/10.1016/j.jmapro.2023.06.005 
9. X. Wang, Z. Shi⁺, J. Lin, 2023, Experimental study and modelling of anisotropic behaviour of aluminium-lithium alloys in creep age forming, Int. J. of Mech. Sciences, 260, 108659, https://doi.org/10.1016/j.ijmecsci.2023.108659
10. J. Lv, Z. Shi⁺, J. Yu, W. Li and J. Lin, 2023, Analysis of solid-state welding in extruding wide aluminium hollow profiles using a new three-container extrusion system, J. of Manufacturing Processes, 94, pp146–158. https://doi.org/10.1016/j.jmapro.2023.03.048
11. X. Wang, Q. Rong, Z. Shi⁺, J. Lin, 2023, An efficient closed‑form solution for springback prediction and compensation in elastic–plastic creep age forming, The Int. J. of Advanced Manuf. Techn., 125, pp1115-1133 https://doi.org/10.1007/s00170-022-10607-3
12. W. Zhou⁺, J. Lin, T. A. Dean, 2023, Microstructure and mechanical properties of curved AZ31 magnesium alloy profiles produced by differential velocity sideways extrusion, J. of Magnesium and Alloys, 11, pp 493-508.  https://doi.org/10.1016/j.jma.2022.11.012
13. J. Lv, J. Yu, Z. Shi⁺, W. Li and J. Lin, 2023, Feasibility study of a novel multi-container extrusion method for manufacturing wide aluminium profiles with low force, J. of Manufacturing Processes, 85, pp584–593. https://doi.org/10.1016/j.jmapro.2022.11.055
14. W. Zhou, C.J. Cleaver⁺, C.F. Dunant, J.M. Allwood, J. Lin, 2023, Cost, range anxiety and future electricity supply: A review of how today’s technology trends may influence the future uptake of BEVs, Renewable and Sustainable Energy Reviews, 173, 113074, https://doi.org/10.1016/j.rser.2022.113074 
15. W. Zhou, Z. Shi, J. Lin, 2023, Semi-analytical study of buckling response for grid-stiffened panels during creep age forming, Thin-Walled Structures, 182, 110231, https://doi.org/10.1016/j.tws.2022.110231

Selected Publications:

1. J. Lin, 2015, “Fundamentals of materials modelling for metals processing technologies”. World Publishing. http://www.worldscientific.com/worldscibooks/10.1142/p951. ISBN: 978-1-78326-496-4; Translated to Chinese by K. Zhou, etc. and Published by Central South University Press in 2020, ISBN: 978-7-5487-3476-5.
2. W. Zhou, J. Lin⁺, D.S. Balint, T.A. Dean, 2021, Clarification of the effect of temperature and strain rate on workpiece deformation behaviour in metal forming processes, Int. J. of Machine Tools & Manufacture 171, 103815, https://doi.org/10.1016/j.ijmachtools.2021.103815
3. C. Tong, G. Zhu, Q. Rong, V.A. Yardley⁺, Z. Shi, X. Li, J. Luo, J. Lin, 2021, Investigation of austenitising behaviour of medium-Mn steel in the hot-stamping heating process, J. of Materials Proc. Tech., 297, 117269, https://doi.org/10.1016/j.jmatprotec.2021.117269 
4. S. Liu, Y. Xia, Z. Shi, H. Yu⁺, Z. Li, J. Lin, 2021, Deep learning in sheet metal bending with a novel theory-guided deep neural network, IEEE-CAA J. of Automatica Sinica, 8(3), 565-581. https://doi.org/10.1109/JAS.2021.1003871
5. R. Zhang, Z. Shao, Z. Shi, T.A. Dean and J. Lin⁺, 2021, A novel spatio-temporal method for determining necking and fracture strains of sheet metals, Int. J. of Mechanical Sciences, 189, 105977. https://doi.org/10.1016/j.ijmecsci.2020.105977
6. W. Zhou, J. Lin⁺, T. A. Dean, L. Wang, 2018, Feasibility studies of a novel extrusion process for curved profiles: Experimentation and modelling, Int. J. of Machine Tools and Manufacture, 126, 27-43.
7. Y. Li, Z. Shi, J. Lin⁺, etc., 2017, A unified constitutive model for asymmetric tension and compression creep-ageing behaviour of naturally aged Al-Cu-Li alloy, Int. J. of Plasticity, 89, pp130-149.
8. Z. Shao, N. Li⁺, J. Lin & T.A. Dean, 2016, Development of a new biaxial testing system for generating forming limit diagrams for sheet metals under hot stamping conditions, Experimental Mechanics, 56, 1489-1500.
9. D.J. Politis, J. Lin⁺, T.A. Dean, D.S. Balint, 2014, An investigation into the forging of Bi-metal gears, J. of Materials Proc. Tech., 214, 2248–2260.
10. J. Lin⁺, M Mohamed, D. Balint and T.A. Dean, 2014, The Development of CDM-based theories for predicting FLD for hot stamping applications, Int. J. of Damage Mechanics. 23, 707 - 724.
11. M.S. Mohamed, A.D. Foster, J. Lin, D. Balint⁺ and T. A. Dean, 2012, Investigation of deformation and failure features in hot stamping of AA6082: Experimentation and modelling, Int. J. of Machine Tools and Manuf., 53, pp27-38.
12. P. Zhang, D. Balint⁺ and J. Lin, 2011, An integrated scheme for crystal plasticity analysis: Virtual grain structure generation, Computational Materials Science, 50, 2854–2864.
13. L. Zhan, J. Lin⁺, T.A. Dean and M. Huang, 2011, Experimental Studies and Constitutive Modelling of the Hardening of AA7055 under Creep Age Forming Conditions, Int. J. of Mech. Sci., 53, 595-605.
14. L. Wang, M. Strangwood, D. Balint, J. Lin⁺ and T. A. Dean, 2011, Formability and failure mechanisms of AA2024 under hot forming conditions, Materials Science & Engineering A. 528, 2648-2566.
15. J. Cao and J Lin⁺, 2008, A Study on formulation of objective functions for determining material models, Int. J. of Mech. Sci., 50, 193-204.
16. J. Lin⁺, Y. Liu, D. C. J. Farrugia and M. Zhou 2005, Development of dislocation based-unified material model for simulating microstructure evolution in multipass hot rolling, Philosophical Magazine A, 85, 1967-1987.
17. R. P. Garett, J. Lin⁺ and T. A. Dean, 2005, An investigation of the effects of solution heat treatment on mechanical properties for AA 6xxx alloys: experimentation and modelling, Int. J. of Plasticity, 21, 1640-1657.
18. C.C. Wong⁺, T.A. Dean and J. Lin, 2003, A review of spinning, shear forming and flow forming processes, Int. J. of Machine Tools & Manufacture, 43, 1419-1435.
19. B. Li, J. Lin⁺ and X. Yao, 2002, A novel evolutionary algorithm for determining unified creep damage constitutive equations, Int. J. of Mech. Sci., 44, 987-1002.
20. J. Lin⁺ and J. Yang, 1999, GA-based multiple objective optimisation for determining viscoplastic constitutive equations for superplastic alloys, Int. J. of Plasticity, 15, 1181-1196.