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Speech Title: Digital Machining

Y. Altintas, Ph.D.,
Hon.Dr. Ing. (Stuttgart),
Dr. Cau (Budapest)

Distinguished University Scholar;  Fellow of Royal Society of Canada, EC, CAE, CIRP, ASME, SME, ISNM, P&WC, Tokyo Univ.

NSERC – P&WC – Sandvik Coromant Industrial Research Chair Professor in Digital Twin for Machining

The University of British Columbia

Department of Mechanical Engineering

Vancouver, B.C., CANADA

V6T 1Z4

Contact Link


The aim of our research is to develop mathematical models of metal cutting operations, machine tool vibrations and control. The science-based digital models allow the virtual design, testing, optimization, monitoring and of control of machine tools and machining operations.


The model predicts the cutting forces, torque, and power consumed in machining parts by considering CNC system, material properties, cutter geometry, structural flexibilities, and cutting conditions along the tool path. The simulation system predicts chatter-free cutting conditions within the work volume of the machine tool or detects the presence of chatter vibrations along the tool path. The dynamics of servo drive control systems, and trajectory generation as a function of jerk, acceleration and velocity profiles of machine tools are considered in simulating the machine tool behavior along the tool path. An in-house developed virtual and real-time CNC system allows the design and analysis of any five-axis machine tool controller. Current research includes digital twin approach, where virtual simulation and real-time machine tool monitoring are integrated to achieve intelligent, self-adjusting machine tools.


The algorithms are published in the open literature and packaged in industrial software toolbox which can be used as a process planning tool by production engineers, or as an analysis and monitoring modules by industry.


Professor Altintas obtained his Bachelor from Istanbul Technical University (1975), M.Sc. (1980) from University of New Brunswick and Ph.D. (1987) from McMaster University in Canada. He worked as a machine tool manufacturing engineer in Turkey (1977-1978), process development engineer in Pratt & Whitney Canada in Montreal (1980-1981), and the principal engineer of Canadian Institute of Metalworking at McMaster University in Hamilton (1981-1982). He joined University of British Columbia and founded Manufacturing Automation Laboratory in 1986. He conducts research on metal cutting, machine tool vibrations, control and virtual machining. He has published over 195 archival journal articles with ~ 39500,000 citations with h index of 103 (Google Scholar), and a widely used “Manufacturing Automation: Principals of Metal Cutting Mechanics, Machine Tool Vibrations and CNC Design. 1st ed. 2000, 2nd ed.:2012 with Chinese (2003,2020) and Turkish (2017) Editions. His research laboratory created advanced machining process simulation (CUTPRO), virtual part machining process simulation (MACHPRO) and open-modular 5 axis CNC system (Virtual CNC), which are used by over 300 companies and research centers in the field of machining and machine tools worldwide.


Professor Altintas is the fellow of Royal Society of Canada, CIRP, ASME, SME, CAE, EC, Tokyo University, P&WC, AvH and ISNM. He received Pratt & Whitney Canada’s (P&WC) university partnership (1997), APEG BC’s Meritorious Achievement (2002), APEG BC R.H. McLachlan (2010), UBC Killam Teaching Prize of Engineering (2011), Gold Medal of Engineers Canada (2011), SME Albert M. Sergent Progress Award (2012), NSERC Synergy Award, ASME Blackall Machine Tool and Gage best journal paper award, the special scientific award of Republic of Turkey in Science and Engineering (2013), Georg Schlesinger Production Engineering Award (Berlin, 2016), and ASME William T. Ennor Manufacturing Technology Award (USA, 2016). He holds an Honorary Doctorate Degrees from Stuttgart University (2009) and Budapest University of Technology (2013), and holds Honorary Professor title from BEIHANG University in Beijing. He was the president of CIRP (International Academy of Production Engineering Researchers) for term 2016 – 2017. He is designated as the Distinguished University Scholar of Engineering at the University of British Columbia since 2017.

He directed NSERC CANRIMT Machining Research Network across Canada (2010-2022), and holds the NSERC – P&WC – Sandvik Coromant Industrial Research Chair Professorship to develop next generation Digital Machining Twin Technology. He is also founding president of MAL Manufacturing Automation Lab. Inc. ( which packages his research algorithms as digital machining technology tool boxes for industry.

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