Jun Ma
About
Jun Ma is an Associate Professor at NTNU – Department of Mechanical and Industrial Engineering. He joined NTNU as a postdoctoral fellow in Sept 2019 and was promoted to tenured associate professor in Sept 2021. Jun's research endeavour is more on the design and development of advanced metal forming and manufacturing processes/chains for both mass and customized production, by seeking the epistemological understanding of physical essence in the manufacturing processes/chains for developing innovative solutions toward improved accuracy and properties of products, productivity, profitability, and sustainability.
Professional Experiences
- Associate Professor, NTNU - Department of Mechanical and Industrial Engineering, Trondheim, Norway, 09/2021 - present
- Postdoctoral Fellow, NTNU - Department of Mechanical and Industrial Engineering, Trondheim, Norway, 09/2019 - 09/2021
- Research Assistant, Hong Kong PolyU - Department of Mechanical Engineering, Hong Kong, China, 05/2018 - 05/2019
Research Interests
- Design and development of lightweight and circular products.
- Manufacturing processes: forming/bending, aluminium extrusion, AM, and hybrid processes
- Industry 4.0-based forming equipment, machine tools, and in-situ monitoring technologies.
- Intelligent modelling and adaptive control of processes and production chains.
- Sustainable manufacturing, recycling and re-manufacturing using PCS recycled aluminium
Research
AluGreen: Aluminium Green Platform
EXPECT: Complex EXtruded Aluminium Profiles for BEV Battery ProtECTion System
TaFF: Digitally-Controlled, Toolless and Flexible Forming
AdaptAl: Adaptiv Control of Aluminium Manufacturing
Publications
Jun Ma has published more than 70 peer-reviewed book chapters, journal and conference articles, as well as several patents. Many of them are published in top-notched journals in the metal forming and manufacturing field, such as Int J Mach Tools Manu (IJMTM), Int J Plast (IJP), Int J Mech Sci (IJMS), J Mater Process Technol (JMPT), as well as the important conferences such as ICTP, ESAFORM, MSEC-NAMRC, Metal Forming. One paper was awarded the "Best Poster Prize" at ICTP2017 at Cambridge University, and several journal papers were listed as "Highly Cited Paper" in the Web of Science. Jun is on the editorial board of several journals such as J Mater Sci Technol, and Add Manuf Frontier. He is also an active reviewer for more than 30 top-notched journals in the material, mechanical and manufacturing fields, such as IJMTM, IJP, JMPT, CIRP, IJMS, AMSE.
2024
-
Sariyarlioglu, Eren Can;
Welo, Torgeir;
Ma, Jun.
(2024)
Prediction of longitudinal seam weld quality in multi-chamber aluminium extrusion.
Materials Research Forum LLC
Materials Research Proceedings (MRP) (1)
Academic anthology/Conference proceedings
-
Sariyarlioglu, Eren Can;
Negozio, Marco;
Welo, Torgeir;
Ma, Jun.
(2024)
Charge weld evolution in hollow aluminum extrusion: Experiments and modeling.
CIRP - Journal of Manufacturing Science and Technology
Academic article
-
Liu, Wencheng;
Li, Xinghao;
Liu, Ming;
Cui, Hao;
Huang, Jia;
Pang, Yong.
(2024)
Virtual laboratory enabled constitutive modelling of dual phase steels.
International journal of plasticity
Academic article
-
Wang, Zili;
Xiang, Yongzhe;
Zhang, Shuyou;
Liu, Xiaojian;
Ma, Jun;
Tan, Jianrong.
(2024)
Physics-informed springback prediction of 3D aircraft tubes with six-axis free-bending manufacturing.
Aerospace Science and Technology
Academic article
-
Liu, Wencheng;
Liu, Jinlong;
Li, Xinghao;
Huang, Jia;
Chen, Yang;
Li, Yulong.
(2024)
Anisotropic elastoplasticity and fracture of SCFR-PEEK composites in complex biaxial loading: Experiments and modelling.
Composites Science And Technology
Academic article
-
Sun, H;
Li, H;
Yang, H;
Ma, Jun;
Hao, X;
Fu, MW.
(2024)
Breaking through the bending limit of Al-alloy tubes by cryogenic effect controlled mechanical properties and friction behaviours.
International journal of machine tools & manufacture
Academic article
-
He, Xu;
Welo, Torgeir;
Ma, Jun.
(2024)
In-process, real-time monitoring of forming forces in rotary draw bending process.
The International Journal of Advanced Manufacturing Technology
Academic article
-
Moon, Chanmi;
Ma, Jun;
Lee, Myoung-Gyu.
(2024)
Dynamics of Portevin-Le Chatelier (PLC) bands and fracture behavior of W-tempered 7075 aluminum alloys with different cooling methods.
Materials Science & Engineering: A
Academic article
-
Sariyarlioglu, Eren Can;
Welo, Torgeir;
Ma, Jun.
(2024)
On the mechanisms of charge weld evolution in aluminum extrusion.
Journal of Manufacturing Processes
Academic article
2023
-
Tronvoll, Sigmund Arntsønn;
Treffen, Helena;
Ma, Jun;
Welo, Torgeir.
(2023)
Low-cost tooling concept for customized tube bending by the use of additive manufacturing.
Materials Research Proceedings (MRP)
Academic article
-
Liu, Wencheng;
Huang, Jia;
Pang, Yong;
Zhu, Ke;
Li, Shugen;
Ma, Jun.
(2023)
Multi-scale modelling of evolving plastic anisotropy during Al-alloy sheet forming.
International Journal of Mechanical Sciences
Academic article
-
Oliveira, C.M.;
Cazacu, O.;
Revil Baudard, B.;
Neto, D.M.;
Frohn-Sörensen, P.;
Ma, Jun.
(2023)
ESAFORM 2021 cup drawing benchmark of an Al alloy: Critical follow up analysis of its potentials.
Materials Research Proceedings (MRP)
Academic article
-
Ma, Jun;
Tronvoll, Sigmund Arntsønn;
Welo, Torgeir.
(2023)
Prediction and analysis of real-time forces in novel 3D flexible rotary stretch forming of complex profiles.
CIRP - Journal of Manufacturing Science and Technology
Academic article
-
Williams, William Matthew;
Sandnes, Lise;
Ma, Jun;
Tronvoll, Sigmund Arntsønn;
Welo, Torgeir.
(2023)
Yield stress and work hardening behavior of extruded AA6082 profiles under different homogenization and extrusion conditions.
Materials Research Proceedings (MRP)
Academic article
-
Zhou, Xianyan;
Ma, Jun;
Zhou, Wenbin;
Welo, Torgeir.
(2023)
Forming-based geometric correction methods for thin-walled metallic components: a selective review.
The International Journal of Advanced Manufacturing Technology
Academic literature review
-
Sariyarlioglu, Eren Can;
Negozio, Marco;
Ma, Jun;
Welo, Torgeir;
Ringen, Geir.
(2023)
Effect of Die Design on Charge Welds in Aluminium Extrusion.
Springer
Springer
Academic anthology/Conference proceedings
-
Ma, Jun;
Tronvoll, Sigmund Arntsønn;
Welo, Torgeir.
(2023)
Towards Control of Springback Variability in Novel Flexible Stretch Forming of Aluminium Extrusions.
Springer Nature
Springer Nature
Academic anthology/Conference proceedings
-
Xu, Zhutian;
Li, Xia'nan;
Zhang, Rui;
Ma, Jun;
Qiu, Diankai;
Peng, Linfa.
(2023)
The effect of electric current on dislocation activity in pure aluminum: A 3D discrete dislocation dynamics study.
International journal of plasticity
Academic article
2022
-
He, Xu;
Ma, Jun;
Welo, Torgeir.
(2022)
Strain distribution at the transition from bent to unbent regions in tube rotary draw bending: an in-situ, real-time measurement study.
IOP Conference Series: Materials Science and Engineering
Academic article
-
Yang, YF;
He, ZR;
Ma, Jun;
Yang, H;
Min, JY;
Zang, SL.
(2022)
Evolving asymmetric and anisotropic hardening of CP-Ti sheets under monotonic and reverse loading: Characterization and modeling.
International journal of plasticity
Academic article
-
Zhou, Xianyan;
Ma, Jun;
Welo, Torgeir.
(2022)
Numerical Analyses of Deformation Mechanisms in a Novel Dimensional Calibration Technique for Thin-Walled, Open Extrusions.
Key Engineering Materials
Academic article
-
Tronvoll, Sigmund Arntsønn;
Blindheim, Jørgen;
Ma, Jun;
Welo, Torgeir.
(2022)
A new, flexible tool concept for rotary die stretch bending.
Manufacturing Letters
Academic article
-
Pang, Yong;
Grilli, Nicolò;
Su, Hang;
Liu, Wencheng;
Ma, Jun;
Yu, Siu Fung.
(2022)
Experimental investigation on microstructures and mechanical properties of PG4 flash-butt rail welds.
Engineering Failure Analysis
Academic article
-
He, Xu;
Ma, Jun;
Tronvoll, Sigmund Arntsønn;
Welo, Torgeir.
(2022)
In-Process Monitoring of Springback in Industrial Bending Using a Laser Sensor-Based Method.
Key Engineering Materials
Academic article
-
Ma, Jun;
Tronvoll, Sigmund Arntsønn;
Welo, Torgeir;
Ringen, Geir.
(2022)
On Dimensional Control in Rotary Stretch Bending of Aluminum Profiles: Loading-Path Effects.
Manufacturing Letters
Academic article
-
Lu, Xu;
Díaz, Andrés;
Ma, Jun;
Wang, Dong;
He, Jianying;
Zhang, Zhiliang.
(2022)
The effect of plastic deformation on hydrogen diffusion in nickel Alloy 625.
Scripta Materialia
Academic article
-
Tronvoll, Sigmund Arntsønn;
Ma, Jun;
Welo, Torgeir.
(2022)
Deformation behavior in tube bending: a comparative study of compression bending and rotary draw bending.
The International Journal of Advanced Manufacturing Technology
Academic article
-
Wang, Xintong;
Ma, Jun;
Welo, Torgeir.
(2022)
Influence of deformation prior to ageing on fatigue behavior of extruded AA6082-T6 profiles.
International Journal of Fatigue
Academic article
-
Habraken, A.M.;
Aksen, T.A.;
Alves, J.L.;
Amaral, R.L.;
Betaieb, E.;
Chandola, N..
(2022)
Analysis of ESAFORM 2021 cup drawing benchmark of an Al alloy, critical factors for accuracy and efficiency of FE simulations.
International Journal of Material Forming
Academic literature review
2021
-
Ma, Jun;
Welo, Torgeir.
(2021)
Analytical springback assessment in flexible stretch bending of complex shapes.
International journal of machine tools & manufacture
Academic article
-
Ma, Jun;
Li, H;
Chen, GY;
Welo, Torgeir;
Li, GJ.
(2021)
Machine Learning (ML)-Based Prediction and Compensation of Springback for Tube Bending.
Springer
Academic chapter/article/Conference paper
-
Ma, Jun;
Welo, Torgeir;
Blindheim, Jørgen;
Ha, Taekwang.
(2021)
Effect of Stretching on Springback in Rotary Stretch Bending of Aluminium Alloy Profiles.
Key Engineering Materials
Academic article
-
Ma, Jun;
Welo, Torgeir;
Wan, Di.
(2021)
The impact of thermo-mechanical processing routes on product quality in integrated aluminium tube bending process.
Journal of Manufacturing Processes
Academic article
-
Wan, Di;
Guan, Shuai;
Wang, Dong;
Lu, Xu;
Ma, Jun.
(2021)
Hydrogen embrittlement of additively manufactured AlCoCrFeNi2.1 eutectic high-entropy alloy.
Corrosion Science
Academic article
-
Zhou, Xianyan;
Welo, Torgeir;
Ma, Jun;
Tronvoll, Sigmund A..
(2021)
Deformation characteristics in a stretch-based dimensional correction method for open, thin-walled extrusions.
Metals
Academic article
2020
-
Ma, Jun;
Ha, Taekwang;
Blindheim, Jørgen;
Welo, Torgeir;
Ringen, Geir;
Li, Heng.
(2020)
Exploring the Influence of Pre/Post-Aging on Springback in Al-Mg-Si Alloy Tube Bending.
Procedia Manufacturing
Academic article
-
Ha, Taekwang;
Ma, Jun;
Blindheim, Jørgen;
Welo, Torgeir;
Ringen, Geir;
Wang, Jyhwen.
(2020)
In-line Springback Measurement for Tube Bending Using a Laser System.
Procedia Manufacturing
Academic article
-
Raknes, Christian Arne;
Ma, Jun;
Welo, Torgeir;
Paulsen, Frode.
(2020)
A new mechanical calibration strategy for U-channel extrusions.
The International Journal of Advanced Manufacturing Technology
Academic article
-
Welo, Torgeir;
Ringen, Geir;
Ma, Jun.
(2020)
An overview and evaluation of alternative forming processes for complex aluminium products.
Procedia Manufacturing
Academic article
-
Welo, Torgeir;
Ma, Jun;
Blindheim, Jørgen;
Ha, Taekwang;
Ringen, Geir.
(2020)
Flexible 3D Stretch Bending of Aluminium Alloy Profiles: An Experimental and Numerical Study.
Procedia Manufacturing
Academic article
Journal publications
-
Sariyarlioglu, Eren Can;
Negozio, Marco;
Welo, Torgeir;
Ma, Jun.
(2024)
Charge weld evolution in hollow aluminum extrusion: Experiments and modeling.
CIRP - Journal of Manufacturing Science and Technology
Academic article
-
Liu, Wencheng;
Li, Xinghao;
Liu, Ming;
Cui, Hao;
Huang, Jia;
Pang, Yong.
(2024)
Virtual laboratory enabled constitutive modelling of dual phase steels.
International journal of plasticity
Academic article
-
Wang, Zili;
Xiang, Yongzhe;
Zhang, Shuyou;
Liu, Xiaojian;
Ma, Jun;
Tan, Jianrong.
(2024)
Physics-informed springback prediction of 3D aircraft tubes with six-axis free-bending manufacturing.
Aerospace Science and Technology
Academic article
-
Liu, Wencheng;
Liu, Jinlong;
Li, Xinghao;
Huang, Jia;
Chen, Yang;
Li, Yulong.
(2024)
Anisotropic elastoplasticity and fracture of SCFR-PEEK composites in complex biaxial loading: Experiments and modelling.
Composites Science And Technology
Academic article
-
Sun, H;
Li, H;
Yang, H;
Ma, Jun;
Hao, X;
Fu, MW.
(2024)
Breaking through the bending limit of Al-alloy tubes by cryogenic effect controlled mechanical properties and friction behaviours.
International journal of machine tools & manufacture
Academic article
-
He, Xu;
Welo, Torgeir;
Ma, Jun.
(2024)
In-process, real-time monitoring of forming forces in rotary draw bending process.
The International Journal of Advanced Manufacturing Technology
Academic article
-
Moon, Chanmi;
Ma, Jun;
Lee, Myoung-Gyu.
(2024)
Dynamics of Portevin-Le Chatelier (PLC) bands and fracture behavior of W-tempered 7075 aluminum alloys with different cooling methods.
Materials Science & Engineering: A
Academic article
-
Sariyarlioglu, Eren Can;
Welo, Torgeir;
Ma, Jun.
(2024)
On the mechanisms of charge weld evolution in aluminum extrusion.
Journal of Manufacturing Processes
Academic article
-
Tronvoll, Sigmund Arntsønn;
Treffen, Helena;
Ma, Jun;
Welo, Torgeir.
(2023)
Low-cost tooling concept for customized tube bending by the use of additive manufacturing.
Materials Research Proceedings (MRP)
Academic article
-
Liu, Wencheng;
Huang, Jia;
Pang, Yong;
Zhu, Ke;
Li, Shugen;
Ma, Jun.
(2023)
Multi-scale modelling of evolving plastic anisotropy during Al-alloy sheet forming.
International Journal of Mechanical Sciences
Academic article
-
Oliveira, C.M.;
Cazacu, O.;
Revil Baudard, B.;
Neto, D.M.;
Frohn-Sörensen, P.;
Ma, Jun.
(2023)
ESAFORM 2021 cup drawing benchmark of an Al alloy: Critical follow up analysis of its potentials.
Materials Research Proceedings (MRP)
Academic article
-
Ma, Jun;
Tronvoll, Sigmund Arntsønn;
Welo, Torgeir.
(2023)
Prediction and analysis of real-time forces in novel 3D flexible rotary stretch forming of complex profiles.
CIRP - Journal of Manufacturing Science and Technology
Academic article
-
Williams, William Matthew;
Sandnes, Lise;
Ma, Jun;
Tronvoll, Sigmund Arntsønn;
Welo, Torgeir.
(2023)
Yield stress and work hardening behavior of extruded AA6082 profiles under different homogenization and extrusion conditions.
Materials Research Proceedings (MRP)
Academic article
-
Zhou, Xianyan;
Ma, Jun;
Zhou, Wenbin;
Welo, Torgeir.
(2023)
Forming-based geometric correction methods for thin-walled metallic components: a selective review.
The International Journal of Advanced Manufacturing Technology
Academic literature review
-
Xu, Zhutian;
Li, Xia'nan;
Zhang, Rui;
Ma, Jun;
Qiu, Diankai;
Peng, Linfa.
(2023)
The effect of electric current on dislocation activity in pure aluminum: A 3D discrete dislocation dynamics study.
International journal of plasticity
Academic article
-
He, Xu;
Ma, Jun;
Welo, Torgeir.
(2022)
Strain distribution at the transition from bent to unbent regions in tube rotary draw bending: an in-situ, real-time measurement study.
IOP Conference Series: Materials Science and Engineering
Academic article
-
Yang, YF;
He, ZR;
Ma, Jun;
Yang, H;
Min, JY;
Zang, SL.
(2022)
Evolving asymmetric and anisotropic hardening of CP-Ti sheets under monotonic and reverse loading: Characterization and modeling.
International journal of plasticity
Academic article
-
Zhou, Xianyan;
Ma, Jun;
Welo, Torgeir.
(2022)
Numerical Analyses of Deformation Mechanisms in a Novel Dimensional Calibration Technique for Thin-Walled, Open Extrusions.
Key Engineering Materials
Academic article
-
Tronvoll, Sigmund Arntsønn;
Blindheim, Jørgen;
Ma, Jun;
Welo, Torgeir.
(2022)
A new, flexible tool concept for rotary die stretch bending.
Manufacturing Letters
Academic article
-
Pang, Yong;
Grilli, Nicolò;
Su, Hang;
Liu, Wencheng;
Ma, Jun;
Yu, Siu Fung.
(2022)
Experimental investigation on microstructures and mechanical properties of PG4 flash-butt rail welds.
Engineering Failure Analysis
Academic article
-
He, Xu;
Ma, Jun;
Tronvoll, Sigmund Arntsønn;
Welo, Torgeir.
(2022)
In-Process Monitoring of Springback in Industrial Bending Using a Laser Sensor-Based Method.
Key Engineering Materials
Academic article
-
Ma, Jun;
Tronvoll, Sigmund Arntsønn;
Welo, Torgeir;
Ringen, Geir.
(2022)
On Dimensional Control in Rotary Stretch Bending of Aluminum Profiles: Loading-Path Effects.
Manufacturing Letters
Academic article
-
Lu, Xu;
Díaz, Andrés;
Ma, Jun;
Wang, Dong;
He, Jianying;
Zhang, Zhiliang.
(2022)
The effect of plastic deformation on hydrogen diffusion in nickel Alloy 625.
Scripta Materialia
Academic article
-
Tronvoll, Sigmund Arntsønn;
Ma, Jun;
Welo, Torgeir.
(2022)
Deformation behavior in tube bending: a comparative study of compression bending and rotary draw bending.
The International Journal of Advanced Manufacturing Technology
Academic article
-
Wang, Xintong;
Ma, Jun;
Welo, Torgeir.
(2022)
Influence of deformation prior to ageing on fatigue behavior of extruded AA6082-T6 profiles.
International Journal of Fatigue
Academic article
-
Habraken, A.M.;
Aksen, T.A.;
Alves, J.L.;
Amaral, R.L.;
Betaieb, E.;
Chandola, N..
(2022)
Analysis of ESAFORM 2021 cup drawing benchmark of an Al alloy, critical factors for accuracy and efficiency of FE simulations.
International Journal of Material Forming
Academic literature review
-
Ma, Jun;
Welo, Torgeir.
(2021)
Analytical springback assessment in flexible stretch bending of complex shapes.
International journal of machine tools & manufacture
Academic article
-
Ma, Jun;
Welo, Torgeir;
Blindheim, Jørgen;
Ha, Taekwang.
(2021)
Effect of Stretching on Springback in Rotary Stretch Bending of Aluminium Alloy Profiles.
Key Engineering Materials
Academic article
-
Ma, Jun;
Welo, Torgeir;
Wan, Di.
(2021)
The impact of thermo-mechanical processing routes on product quality in integrated aluminium tube bending process.
Journal of Manufacturing Processes
Academic article
-
Wan, Di;
Guan, Shuai;
Wang, Dong;
Lu, Xu;
Ma, Jun.
(2021)
Hydrogen embrittlement of additively manufactured AlCoCrFeNi2.1 eutectic high-entropy alloy.
Corrosion Science
Academic article
-
Zhou, Xianyan;
Welo, Torgeir;
Ma, Jun;
Tronvoll, Sigmund A..
(2021)
Deformation characteristics in a stretch-based dimensional correction method for open, thin-walled extrusions.
Metals
Academic article
-
Ma, Jun;
Ha, Taekwang;
Blindheim, Jørgen;
Welo, Torgeir;
Ringen, Geir;
Li, Heng.
(2020)
Exploring the Influence of Pre/Post-Aging on Springback in Al-Mg-Si Alloy Tube Bending.
Procedia Manufacturing
Academic article
-
Ha, Taekwang;
Ma, Jun;
Blindheim, Jørgen;
Welo, Torgeir;
Ringen, Geir;
Wang, Jyhwen.
(2020)
In-line Springback Measurement for Tube Bending Using a Laser System.
Procedia Manufacturing
Academic article
-
Raknes, Christian Arne;
Ma, Jun;
Welo, Torgeir;
Paulsen, Frode.
(2020)
A new mechanical calibration strategy for U-channel extrusions.
The International Journal of Advanced Manufacturing Technology
Academic article
-
Welo, Torgeir;
Ringen, Geir;
Ma, Jun.
(2020)
An overview and evaluation of alternative forming processes for complex aluminium products.
Procedia Manufacturing
Academic article
-
Welo, Torgeir;
Ma, Jun;
Blindheim, Jørgen;
Ha, Taekwang;
Ringen, Geir.
(2020)
Flexible 3D Stretch Bending of Aluminium Alloy Profiles: An Experimental and Numerical Study.
Procedia Manufacturing
Academic article
Books
-
Sariyarlioglu, Eren Can;
Welo, Torgeir;
Ma, Jun.
(2024)
Prediction of longitudinal seam weld quality in multi-chamber aluminium extrusion.
Materials Research Forum LLC
Materials Research Proceedings (MRP) (1)
Academic anthology/Conference proceedings
-
Sariyarlioglu, Eren Can;
Negozio, Marco;
Ma, Jun;
Welo, Torgeir;
Ringen, Geir.
(2023)
Effect of Die Design on Charge Welds in Aluminium Extrusion.
Springer
Springer
Academic anthology/Conference proceedings
-
Ma, Jun;
Tronvoll, Sigmund Arntsønn;
Welo, Torgeir.
(2023)
Towards Control of Springback Variability in Novel Flexible Stretch Forming of Aluminium Extrusions.
Springer Nature
Springer Nature
Academic anthology/Conference proceedings
Part of book/report
-
Ma, Jun;
Li, H;
Chen, GY;
Welo, Torgeir;
Li, GJ.
(2021)
Machine Learning (ML)-Based Prediction and Compensation of Springback for Tube Bending.
Springer
Academic chapter/article/Conference paper
Teaching
Courses
- MAST2009 - 3D Computer Modeling and Simulation
- TMM4960 - Engineering Design and Materials, Master's Thesis
- MM8200 - Aluminium Technology: Extrusion and Forming
- TMM4540 - Industrial ICT Engineering Design and Materials, Specialization Project
- TMM4560 - Engineering Design and Materials, Specialization Project
- TMM4182 - Fundamentals of Metal Forming and Sustainable Manufacturing Processes
- TMM4935 - Industrial ICT, Master's Thesis
Knowledge Transfer
2024
-
PosterSariyarlioglu, Eren Can; Welo, Torgeir; Ma, Jun. (2024) Charge Weld Evolution in Aluminium Extrusion. Japan Society for Technology of Plasticity (JSTP) 9th International Seminar on Precision Forging (ISPF) , Kyoto 2024-03-11 - 2024-03-14
-
Academic lectureSariyarlioglu, Eren Can; Welo, Torgeir; Ma, Jun. (2024) Prediction of longitudinal seam weld quality in multi-chamber aluminium extrusion. The 27th International ESAFORM Conference on Material Forming (ESAFORM 2024) , Toulouse 2024-04-24 - 2024-04-26
2023
-
Academic lectureTronvoll, Sigmund Arntsønn; Treffen, Helena; Ma, Jun; Welo, Torgeir. (2023) Low-cost tooling concept for customized tube bending by the use of additive manufacturing. ESAFORM and AGH University of Science and Technology The 26th International Esaform Conference (ESAFORM2023) , Kraków 2023-04-18 - 2023-04-21
-
Academic lectureWilliams, William Matthew; Sandnes, Lise; Ma, Jun; Tronvoll, Sigmund Arntsønn; Welo, Torgeir. (2023) Yield Stress and Work Hardening Behavior of Extruded AA6082 Profiles under Different Homogenization and Extrusion Conditions. European Scientific Association for Material Forming The 26th International Esaform Conference (ESAFORM2023) , Kraków 2023-04-19 - 2023-04-21
-
Academic lectureMa, Jun; Welo, Torgeir. (2023) Intelligent flexible forming technology for value-added aluminium extrusion products in EV applications. The 7th Chinese-Norwegian Symposium on Light Metals & New Energy Materials 2023-10-07 - 2023-10-19
-
Academic lectureMa, Jun; Tronvoll, Sigmund Arntsønn; Welo, Torgeir. (2023) Towards Control of Springback Variability in Novel Flexible Stretch Forming of Aluminium Extrusions. The 14th International Conference on the Technology of Plasticity , Cannes 2023-09-24 - 2023-09-29
-
Academic lectureOliveira, C.M.; Cazacu, O.; Revil Baudard, B.; Neto, D.M.; Frohn-Sörensen, P.; Ma, Jun. (2023) ESAFORM 2021 cup drawing benchmark of an Al alloy: Critical follow up analysis of its potentials. ESAFORM The 26th International Esaform Conference (ESAFORM2023) , Krakow 2023-04-19 - 2023-04-22
-
Academic lectureSariyarlioglu, Eren Can; Negozio, Marco; Ma, Jun; Welo, Torgeir; Ringen, Geir. (2023) Effect of Die Design on Charge Welds in Aluminium Extrusion. The 14th International Conference on the Technology of Plasticity , Mandelieu - La Napoule 2023-09-24 - 2023-09-29
2022
-
Academic lectureHe, Xu; Ma, Jun; Welo, Torgeir. (2022) Strain distribution at the transition from bent to unbent regions in tube rotary draw bending: an in-situ, real-time measurement study. The 19th International Conference on Metal Forming 2022-09-11 - 2022-09-14
-
Academic lectureZhou, Xianyan; Ma, Jun; Welo, Torgeir. (2022) Numerical Analyses of Deformation Mechanisms in a Novel Dimensional Calibration Technique for Thin-Walled, Open Extrusions. ESAFORM 25th International Conference on Material Forming 2022-04-26 - 2022-04-29
-
Academic lectureHe, Xu; Ma, Jun; Tronvoll, Sigmund Arntsønn; Welo, Torgeir. (2022) In-Process Monitoring of Springback in Industrial Bending Using a Laser Sensor-Based Method. 25th International Conference on Material Forming , Braga 2022-04-27 - 2022-04-29
2021
-
Academic lectureMa, Jun; Tronvoll, Sigmund Arntsønn; Welo, Torgeir; Ringen, Geir. (2021) On Dimensional Control in Rotary Stretch Bending of Aluminum Profiles: Loading-Path Effects. Purdue University 50th SME North American Manufacturing Research Conference (NAMRC 50, 2022) , West Lafayette 2021-06-27 - 2021-07-01
-
Academic lectureHa, Taekwang; Ma, Jun; Blindheim, Jørgen; Welo, Torgeir; Ringen, Geir; Wang, Jyhwen. (2021) A computer vision-based, in-situ springback monitoring technique for bending of large profiles. Liege Univeristy 24th International Conference on Material Forming , Liege 2021-04-14 - 2021-04-16
-
Academic lectureMa, Jun; Welo, Torgeir; Ringen, Geir. (2021) Efficient Prediction of Real-Time Forming Forces in Flexible Stretch Bending. Liege Univeristy 24th International Conference on Material Forming , Liege 2021-04-14 - 2021-04-16
-
Academic lectureMa, Jun; Li, H; Chen, GY; Welo, Torgeir; Li, GJ. (2021) Machine learning (ML)-based prediction and compensation of springback for tube bending. The Ohio State University The 13th International Conference on the Technology of Plasticity (ICTP 2021) , Ohio 2021-07-25 - 2021-07-30
2020
-
Academic lectureWelo, Torgeir; Ma, Jun; Blindheim, Jørgen; Ha, Taekwang; Ringen, Geir. (2020) Flexible 3D Stretch Bending of Aluminium Alloy Profiles: An Experimental and Numerical Study. AGH University of Science and Technology 18th International Conference on Metal Forming 2020-09-13 - 2020-09-16
-
Academic lectureHa, Taekwang; Ma, Jun; Blindheim, Jørgen; Welo, Torgeir; Ringen, Geir; Wang, Jyhwen. (2020) In-line Springback Measurement for Tube Bending Using a Laser System. European Scientific Association for Materials Forming 23rd International Conference on Material Forming 2020-05-04 - 2020-05-08
-
Academic lectureMa, Jun; Ha, Taekwang; Welo, Torgeir; Blindheim, Jørgen; Ringen, Geir. (2020) Exploring the Influence of Pre/Post-Aging on Springback in Al-Mg-Si Alloy Tube Bending. European Scientific Association for Materials Forming 23rd International Conference on Material Forming 2020-05-04 - 2020-05-08
2019
-
Academic lectureHe, ZR; Li, H; Ma, Jun; Yang, H; Min, JY. (2019) Characterization and modeling of evolving asymmetric/anisotropic hardening of CP-Ti sheet under monotonic and reverse loading. Frontiers in Materials Processing Applications, Research and Technology 2019 (FiMPART'2019) , Ahmedabad 2019-12-15 - 2019-12-18
-
Academic lectureLi, H; Ma, Jun; He, ZR; Chen, GY. (2019) Whole-Period Springback Issue in Metal Forming: Phenomena, Mechanisms, Modeling and Control. International Conference on Lightweight Materials and Manufacture 2018 (ICLMM'2018) , Changsha 2019-10-09 - 2019-10-12