Prof. Yuan Dong, Hangzhou Dianzi University, China
Speech Title: Artificial Intelligence Enabled Autonomous Design of 2D Materials
Abstract: In the past few years, the two dimensional materials (2D) materials attracted significant attention due to their special properties. They are highly hoped to be the mechanical structure materials, highly thermal conductive materials, electronic, electromagnetic, optoelectric materials, photovoltaic materials as well as many other promising application fields. Since 2D material family is huge, the exploration in this material space is exhausting. The cutting edge artificial intelligence method could be a useful tool to accelerate the navigation. In this talk, I will discuss some recent works dealing with the deep learning approach to predict and design the 2D materials. These initial works could inspire the implement of powerful AI technique in the burgeoning 2D material field.
Prof. Xin Liu, Dalian University of Technology, China
Speech Title: Atmospheric Pressure Cold Plasma Jet Assisted Micro-milling Difficult-to-cut metal materials
Abstract: Micro-milling is a low-cost, efficient and high-precision machining method for manufacturing tiny parts, and has significant application value in various fields. In order to meet the high accuracy requirements, several composite micro-milling methods have been proposed. However, these methods cannot change surface characteristics of materials, and poor permeability of cooling medium on the tool-workpiece interface remains unsolved. Atmospheric pressure plasma jet can efficiently improve surface wettability without obviously changing surface microstructures, and may have promising application potential in machining of difficult-to-cut metal materials. Here, we propose to induce atmospheric pressure plasma jet to the micro-milling area to improve machinability and surface quality of difficult-to-cut metal materials. The influences of plasma jet on material wettability and mechanical property are firstly investigated by conducting plasma modification and tensile experiments. Then, micro-milling experiments are performed under different atmospheres (dry, nitrogen jet, plasma jet, minimum quantity lubrication, and plasma jet + minimum quantity lubrication). The experimental results indicate that plasma jet can promote material fracture of metal materials, as well as reduce cutting force and cutting temperature, thereby obtaining better surface quality.