Preface for the Special Issue of Green Smart Manufacturing

Societies have urged manufacturing industries to take greater responsibilities in lowering environmental burdens. [...]Green Manufacturing researchers have investigated the solution to reduce energy consumption, improve manufacturing efficiency, and decrease environmental wastes in processes, machines, and factories. Configurations and characteristics of Green Smart Manufacturing may vary referring to different industries, and performances of the manufacturing system need to be carefully assessed concerning overall efforts and time for installing and operating the system. [...]it is required to overview novel technologies and practical case studies to circulate and further develop research ideas. Artificial intelligence (AI) and big data analysis in green manufacturing Digital twin, cyber physical system (CPS), mixed reality (MR) applications Appropriate sensors, monitoring systems, and prognostics and health management (PHM) Network communication systems, network security and 5G applications Green applications of additive manufacturing, collaborative robotics and soft robotics Case studies of smart factory for energy saving or reduction in environmental impact We would like to express our sincere appreciation to all the authors as well as editorial members for their precious time and effort, and to Ms. Ji Young Oh of the Korean Society for Precision Engineering (KSPE) for her dedicated support during the review and production processes.