Prof. LIN Jianguo, Head and Professor in Mechanics of the Materials Division, Department of Mechanical Engineering, Faculty of Engineering, Imperial College London, United Kingdom, delivered the 17th PAIR Distinguished Lecture titled “How to get high quality experimental data for hot stamping?” on 9 April 2024. The hybrid lecture attracted over 150 participants joining in person and online from more than ten countries and regions. It was also broadcast live on multiple social media platforms, including YouTube, Weibo, and Bilibili, capturing an online viewing audience of over 12,400.
The lecture commenced with a welcome speech and speaker introduction by Ir Prof. MAN Hau-chung, Dean of the Faculty of Engineering and Director of the Research Institute for Advanced Manufacturing (RIAM). In Prof. Lin’s presentation, he first discussed the global requirements for greater reductions in energy use and carbon dioxide emissions by transportation vehicles, pointing out the inevitable trend toward lightweight passenger cars. Ultra-high-strength steel (UHSS) can reduce production costs for vehicles while improving productivity and car performance. Next, Prof. Lin introduced the “HFQ® Technology” developed by his team in recent years. The technology has enabled high-strength alloys to be stamped into automotive components with complex shapes. He outlined the use of thermomechanical experimental tests to generate high-quality data for modelling, and the use of a spatio-temporal method to determine necking and fracture strains in sheet metals. He also explained the computational steps for evaluating the formability of sheet metals under hot stamping. To conclude, Prof. Lin emphasised that improvements in experimental sciences, technologies and standardised testing facilitate the development of new materials-processing technologies.
