Organization
School of Engineering Assistant Professor
Title
Assistant Professor
External link
WANG SHUOHAN
Research Interests
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Injection molding
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Metal-polymer direct joining
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界面分析
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THz評価
Research Areas
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Manufacturing Technology (Mechanical Engineering, Electrical and Electronic Engineering, Chemical Engineering) / Manufacturing and production engineering
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Nanotechnology/Materials / Composite materials and interfaces
Education
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The University of Tokyo The Graduate School of Engineering Department of Precision Machinery Engineering
2021.4 - 2024.3
Country： Japan
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The University of Tokyo The Graduate School of Engineering Department of Precision Engineering
2019.4 - 2021.3
Country： Japan
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大連理工大学 機械工学部 機械工学科
2014.9 - 2018.7
Country： China
Research History
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Institute of Science Tokyo Assistant Professor
2026.4
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The University of Tokyo Institute of Industrial Science
2024.4 - 2026.3
Country：Japan
Professional Memberships
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プラスチック成形加工学会
2025.4
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精密工学会
2019.4
Papers
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Chemical interactions in the injection molded direct joining of polymers and hot water-treated galvanized steel
Jiaxing Ren, Weiyan Chen, Shuohan Wang, Fuminobu Kimura, Jing Sang, Hidetoshi Hirahara, Yusuke Kajihara
Journal of Materials Research and Technology 37 4217 - 4231 2025.7
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Investigation on mechanical property and fracture behavior of galvanized steel-CFRTP joints fabricated via induction heating
Weiyan Chen, Fuminobu Kimura, Shuohan Wang, Yusuke Kajihara
Journal of Manufacturing Processes 138 129 - 139 2025.3
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A chemical-free Al-Mg alloy pretreatment method for metal-polymer direct joining by heat and water treatment
Shuohan Wang, Zhongqi Cui, Fuminobu Kimura, Jiaxing Ren, Weiyan Chen, Yusuke Kajihara
Surfaces and Interfaces 56 105667 - 105667 2025.1
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Investigation of the influence of aluminum surficial water on aluminum-plastic hybrids through a combined experimental and simulation approach Reviewed
Shuaijie Zhao, Chuantong Chen, Hang Liang, Shuohan Wang, Fuminobu Kimura, Yusuke Kajihara
Applied Surface Science 656 159694 - 159694 2024.5
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Development of residual stress evaluation method for polymer products using THz polarization measurement Reviewed
Yusuke Kajihara, Atsushi Tanaka, Weiyan Chen, Shuohan Wang, Kosaku Tao, Fuminobu Kimura
CIRP Annals 73 ( 1 ) 393 - 396 2024
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Submicrometer analyses of the polymer flow modifier effects on metal–polymer direct joining Reviewed
Shuohan Wang, Fuminobu Kimura, Weiyan Chen, Jing Sang, Hidetoshi Hirahara, Yusuke Kajihara
Materials Letters 347 134655 - 134655 2023.9
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Shuohan Wang, Fuminobu Kimura, Shuaijie Zhao, Eiji Yamaguchi, Yuuka Ito, Yukinori Suzuki, Yusuke Kajihara
International Journal of Automation Technology 17 ( 2 ) 156 - 166 2023.3
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Influence of fluidity improver on metal-polymer direct joining via injection molding Reviewed
Shuohan Wang, Fuminobu Kimura, Shuaijie Zhao, Eiji Yamaguchi, Yuuka Ito, Yusuke Kajihara
Precision Engineering 72 620 - 626 2021.11
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Chemical interaction at the interface of metal–plastic direct joints fabricated via injection molded direct joining Reviewed
Shuaijie Zhao, Fuminobu Kimura, Shuohan Wang, Yusuke Kajihara
Applied Surface Science 540 148339 - 148339 2021.2
Presentations
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Evaluation of internal stress of epoxy parts through terahertz wave
Shuohan Wang, Weiyan Chen, Masaaki Tachioka, Naoyoshi Murata, Natsumi Yagi, Yusuke Kajihara
The Japan Society of Polymer Processing 2024.12
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Influence of blasted metal surface textures on joining strength via injection molded direct joining
Shuohan Wang, Fuminobu Kimura, Eiji Yamaguchi, Yuuka Ito, Yukinori Suzuki, Yusuke Kajihara
The Polymer Processing Society’s 40th International Conference 2025.4
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Heating Process Effects before Hot Water Treatment in Injection Molding Direct Joining
Shuohan Wang, Zhongqi Cui, Fuminobu Kimura, Yusuke Kajihara
The 10th International Conference of Asian Society for Precision Engineering and Nanotechnology 2023.11
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Heat process effects for aluminum-magnesium alloy in polymer-metal hybrid joining
Shuohan Wang, Zhongqi Cui, Fuminobu Kimura, Yusuke Kajihara
the European Reginal Meeting of the Polymer Processing Society 2024.9
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Sub-micrometer scale cross-sectional analyses of the polymer flow modifier effects on metal-polymer injection molded direct joining
Shuohan Wang, Fuminobu Kimura, Eiji Yamaguchi, Yuuka Ito, Yukinori Suzuki, Jing Sang, Hidetoshi Hirahara, Yusuke Kajihara
37th International Conference of the Polymer Processing Society 2023.5
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Temperature change resistance on metal-polymer joint manufactured via injection molded direct joining
Shuohan Wang, Fuminobu Kimura, Eiji Yamaguchi, Yukinori Suzuki, Yusuke Kajihara
The Japan Society of Polymer Processing 2023.6
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Influence of fluidity improver on metal-polymer injection molded direct joining
Shuohan Wang, Fuminobu Kimura, Eiji Yamaguchi, Yuuka Ito, Yusuke Kajihara
The Japan Society of Polymer Processing 2022.6
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Joining performance promotion by polymer flow modifier in injection molded metal-polymer direct joining
Shuohan Wang, Fuminobu Kimura, Eiji Yamaguchi, Yuuka Ito, Yukinori Suzuki, Yusuke Kajihara
19th International Conference on Precision Engineering 2022.11
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Machine learning analysis on the effects of metal surface pretreatment conditions on blast-assisted injection molded direct joining
Shuohan Wang, Shuaijie Zhao, Fuminobu Kimura, Eiji Yamaguchi, Yuuka Ito, Yusuke Kajihara
37th International Conference of the Polymer Processing Society 2022.4
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Influence of fluidity improver on metal-polymer direct joining via injection molding
Shuohan Wang, Fuminobu Kimura, Shuaijie Zhao, Eiji Yamaguchi, Nayuta Horie, Yusuke Kajihara
The Japan Society of Polymer Processing 2020.12
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Evaluations of flow modifier to joint performance in injection molded direct joining
Shuohan Wang, Fuminobu Kimura, Shuaijie Zhao, Eiji Yamaguchi, Yuuka Ito, Yusuke Kajihara
The Japan Society for Precision Engineering 2021.3
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Effects of Polymer Additives in Injection Molded Metal-Polymer Direct Joining
Shuohan Wang, Fuminobu Kimura, Shuaijie Zhao, Eiji Yamaguchi, Nayuta Horie, Yusuke Kajihara
The Japan Society of Polymer Processing 2020.6
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Polymer Additive Effects in Injection Molded Metal-Polymer Direct Joining
Shuohan Wang, Fuminobu Kimura, Shuaijie Zhao, Eiji Yamaguchi, Nayuta Horie, Yusuke Kajihara
18th International Conference on Precision Engineering 2020.11
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Joining strength dependence on blasted metal surface textures in injection molded direct joining
Shuohan Wang, Fuminobu Kimura, Eiji Yamaguchi, Nayuta Horie, Yusuke Kajihara
The 18th Asian Workshop on Polymer Processing 2019.10
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Joining Strength Dependence on Blasted Metal Surface Textures in Injection Molded Direct Joining
Shuohan Wang, Fuminobu Kimura, Eiji Yamaguchi, Nayuta Horie, Masaki Ymaguchi, Ichiro Yoshida, Yusuke Kajihara
The Japan Society for Precision Engineering 2020.3
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Flow modifier effects on metal-plastic injection molded direct joining
Shuohan Wang, Fuminobu Kimura, Shuaijie Zhao, Eiji Yamaguchi, Yuuka Ito, Yusuke Kajihara
2nd International Conference on Advanced Joining Processes 2021.10
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Machine learning analysis on metal surface pretreatment conditions in blast-assisted injection molded direct joining
Shuohan Wang, Fuminobu Kimura, Shuaijie Zhao, Eiji Yamaguchi, Yuuka Ito, Yusuke Kajihara
The Japan Society of Polymer Processing 2021.11
Awards
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JSPE Young Researcher Award
2023.3 Influence of fluidity improver on metal-polymer direct joining via injection molding
Research Projects
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環境を考慮した金属・樹脂直接接合法の開拓及び評価
Grant number：25K17520 2025.4 - 2027.3
日本学術振興会 科学研究費助成事業 若手研究
WANG SHUOHAN
Grant amount：\4550000 （ Direct Cost: \3500000 、 Indirect Cost：\1050000 ）
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金属樹脂成形接合手法における分析技術の確立および接合パフォーマンス飛躍的向上
Grant number：23KJ0455 2023.4 - 2025.3
日本学術振興会 科学研究費助成事業 特別研究員奨励費
WANG SHUOHAN
Grant amount：\2000000 （ Direct Cost: \2000000 ）
With the increasing demand for lighter structures, the technology for bonding metals and plastics has become essential across various industries. Among the available methods, techniques that combine metal surface roughening with plastic injection molding, known as IMDJ (Injection Molded Direct Joining), are particularly significant due to their selectivity of materials and high productivity. However, these direct bonding methods have yet to achieve widespread practical use due to the challenges associated with low joint strength and the insufficient understanding of the bonding mechanisms.
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Based on previous research and industrial demands, this study focuses on metal surface treatment methods that do not require the use of chemical substances. It also aims to optimize the strength of these methods and clarify the principles of bonding.
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Investigation of the dependency of joint strength on blasting conditions in blast-assisted IMDJ. And enhancement of joint performance through the use of additives, with analyses of sub-microscale mechanisms were mainly focused on this year. The findings were shared at conferences and published in the “International Journal of Automation Technology” and “Materials Letters”, highlighting the research's contribution to bonding technology and polymer modification in IMDJ.