针对国际高端制造领域迫切需求，致力于轻质合金构件塑性成形工艺、模具与装备研究：（1）为突破轻质合金弯曲构件现有制造技术瓶颈，研发了新型差速挤压成形工艺、装备、模具及产业化理论与技术；（2）为实现分流挤压铝型材焊缝质量数字化评估，研究了空心型材分流挤压焊合机理、界面结构演变规律、固态焊合模型及焊缝质量精确调控理论与方法。与合作导师联合创立了英国帝国理工学院科技孵化公司，实现了研究成果的产业化推广。 申请PCT国际发明专利3项，美、欧、英、日、韩、印发明专利1项、国家发明专利10余项，获英国授权专利1项和中国授权发明专利5项；在Int J Mach Tools Manuf、J Mater Process Technol、Mater Sci Eng A等期刊上发表学术论文30余篇；曾获中国上银优秀机械博士论文奖和山东省优秀博士学位论文。 代表性科研论文： 1. Wenbin Zhou, Junquan Yu*, Xiaochen Lu, Jianguo Lin, Trevor A. Dean. A comparative study on deformation mechanisms, microstructures and mechanical properties of wide thin-ribbed sections formed by sideways and forward extrusion. International Journal of Machine Tools and Manufacture, 2021, 168: 103771. (IF = 10.331)
2. Wenbin Zhou, Junquan Yu*, Jianguo Lin, Trevor A. Dean. Manufacturing a curved profile with fine grains and high strength by differential velocity sideways extrusion. International Journal of Machine Tools and Manufacture, 2019, 140: 77-88. (IF = 10.331) 3. Xiaochen Lu; Junquan Yu*; Victoria A. Yardley; Hui Liu; Zhusheng Shi; Jianguo Lin; Solid-state welding and microstructural features of an aluminium alloy subjected to a novel two-billet differential velocity sideways extrusion process. Journal of Materials Processing Technology, 2021, 296: 117189. (IF = 6.612) 4. Junquan Yu*, Wenbin Zhou, Guoqun Zhao*. Influence of strain, temperature, and strain rate on interfacial structure and strength of AZ31BMg/6063Al formed by plastic deformation bonding. Journal of Manufacturing Processes, 2021, 65: 299-311. (IF = 5.684) 5. Wenbin Zhou, Junquan Yu*, Jianguo Lin, Trevor A. Dean. Effects of die land length and geometry on curvature and effective strain of profiles produced by a novel sideways extrusion process. Journal of Materials Processing Technology, 2020, 282: 116682. (IF = 6.612) 6. Junquan Yu, Guoqun Zhao, Xingting Zhao, Liang Chen, Mengmeng Chen. Microstructures of longitudinal/transverse welds and back-end defects and their influences on the corrosion resistance and mechanical properties of aluminum alloy extrusion profiles. Journal of Materials Processing Technology, 2019, 267: 1-16. (IF = 6.612)
7. Junquan Yu, Guoqun Zhao, Cunsheng Zhang, Liang Chen. Dynamic evolution of grain structure and micro-texture along a welding path of aluminum alloy profiles extruded by porthole dies. Materials Science and Engineering: A, 2017, 682: 679-690. (IF = 6.044) 8. Junquan Yu, Guoqun Zhao, Weichao Cui, Cunsheng Zhang, Liang Chen. Microstructural evolution and mechanical properties of welding seams in aluminum alloy profiles extruded by a porthole die under different billet heating temperatures and extrusion speeds. Journal of Materials Processing Technology, 2017, 247:214-222. (IF= 6.61) 9. Junquan Yu, Guoqun Zhao, Liang Chen. Analysis of longitudinal weld seam defects and investigation of solid-state bonding criteria in porthole die extrusion process of aluminum alloy profiles.Journal of Materials Processing Technology, 2016, 237:31-47. (IF = 6.612) 10. Junquan Yu, Guoqun Zhao, Liang Chen. Investigation of interface evolution, microstructure and mechanical properties of solid-state bonding seams in hot extrusion process of aluminum alloy profiles. Journal of Materials Processing Technology, 2016, 230: 153-166. (IF = 6.612)
代表性发明专利： 1. Apparatus and Method for Extruding Curved Profile, 发明, WO2020157514A1, GB2580955(英国), EP 3917695(欧盟), US17427379(美国), JP2021544681(日本), KR1020210121096(韩国), IN202117033437(印度), 第一位，英国授权 2. 一种实现双向挤压成形工艺的挤压模具、装置及方法，发明，PCT/CN2020/137235, ZL202010120265.0，第一位，中国授权 3. 一种多层弯曲结构的制造方法, 发明，ZL202010119905.6，第一位，中国授权 4. 一种正-侧复合加压成型装置及方法，发明，ZL202010120263.1，第一位，中国授权 5. 一种双向挤压成形的工艺及装备，发明，ZL202010119074.2，第一位，中国授权 6. 一种定量评估金属材料固态焊接性能的方法，发明，ZL201811125161.8，第二位，中国授权
获奖情况： 1. 全国第九届上银优秀机械博士论文奖，2019
2. 山东省优秀博士学位论文，2019 |
