This volume presents research papers on unconventional machining (also known as non-traditional machining and advanced manufacturing) and composites which were presented during the 7th International and 28th All India Manufacturing Technology, Design and Research conference 2018 (AIMTDR 2018). The volume discusses improvements on well-established unconventional machining processes and novel or hybrid machining processes as well as properties, fabrication techniques and machining of composite materials. This volume will be of interest to academicians, researchers, and practicing engineers alike.