CNC Handbook
Hans B. Kiefis acknowledged as one of the world’s leading experts in the field of CNC manufacturing and computer controlled flexible manufacturing systems (FMS). He has worked as a consultant and in the industry, having developed CNC reliability software for the aircraft and automobile industries, and has traveled widely in his professional capacity through the United States and Europe. Hans has a degree in electrical engineering, founded the German NC Society, and is a member of the American Society of Manufacturing Engineers (SME), the Computer Aided Systems Association (CASA), and the American NC Society.Helmut A. Roschiwalbegan his career as an apprentice to a toolmaker and went on to earn his mechanical engineering degree and start his own mechanical engineering product development company with several subsidiaries in Germany and Romania. Helmut is now retired.