Yusuf Altintas

Yusuf Altintas

Yusuf Altintas

Professor

Ph.D. (McMaster); Hon. Dr. Ing. (Stuttgart); NSERC–P&WC Industrial Research Chair; Coordinator of Mechatronics Option at UBC; Fellow of RSC, ASME, CIRP, SME, AvH, CAE, ISNM, and P&WC.

phone: (604) 822-5622
fax: (604) 822-2403
email: altintas@mech.ubc.ca
website:  Manufacturing Automation Laboratory
office: KAIS 3102

Research Interests

  • Modeling and Analysis of Machining Processes
  • Design and Computer Control of Machine Tool Spindle and Feed Drives
  • Mechanics, dynamics and control of micro-machining operations
  • Design of Virtual High Performance Machining Simulation System
  • On line detection and suppression of chatter
  • Analytical and Experimental Modeling of the Mechanics and the Dynamics of Turning, Boring, Drilling and Milling Processes
  • Development of Industrial Software Packages for Machine Tool and Cutting Process, Analysis, and Diagnostics
  • Motion Control and Trajectory Generation for Machine Tools
  • Virtual/Real time Design of  modular CNC Systems
  • Intelligent Machining Process Control, Hardware Monitoring, and Software Modules for CNC Machine Tools
  • CAD/CAM System Development for High Speed Machining of Dies and Molds

Current Research Work

  • Design of virtual high performance machining systems in CAD environment
  • Dynamics of high-speed milling for aerospace and die/mold industry
  • High speed, five axis ball end milling of compressor blades
  • Trajectory generation for high-speed feed drives
  • Control of 5-axis machine tools for minimum contouring errors and vibrations
  • Design of Virtual CNC Systems
  • Development of adaptive control, tool condition monitoring, and chatter vibration detection/suppression modules for milling processes
  • Active damping of machine tool vibrations
  • Analytical modelling and prediction of chatter vibrations in milling, boring, turning and drilling operations
  • Distortion of thin walled structures after machining
  • Reduced order multi-body dynamics of machine tools

Publications

  • M. Cordes, W. Hintze, and Y. Altintas, “Chatter stability in robotic milling,” Robotics and Computer-Integrated Manufacturing55, pp.11-18, February 2019.
  • M. Habibi, O. Tuysuz, and Y. Altintas, “Virtual compensation of deflection errors in 5-axis ball end milling of turbine blades,” Journal of Manufacturing Science and Engineering, January 2019.
  • J. Yang, D. Aslan, and Y. Altintas, “A feedrate scheduling algorithm to constrain tool tip position and tool orientation errors of five-axis CNC machining under cutting load disturbances,” CIRP Journal of Manufacturing Science and Technology23, pp.78-90, November 2018.
  • H. Caliskan, Z.M. Kilic, and Y. Altintas, “On-Line Energy-Based Milling Chatter Detection,” Journal of Manufacturing Science and Engineering140(11), p.111012, August 2018.
  • A. Yuen and Y. Altintas, “Geometric Error Compensation With a Six Degree-of–Freedom Rotary Magnetic Actuator,” Journal of Manufacturing Science and Engineering140(11), p.111016, August 2018.
  • A. Comak and Y. Altintas, “Dynamics and stability of turn-milling operations with varying time delay in discrete time domain,” Journal of Manufacturing Science and Engineering140(10), p.101013, July 2018.
  • M.R. Khoshdarregi, and Y. Altintas, “Dynamics of Multipoint Thread Turning—Part I: General Formulation,” Journal of Manufacturing Science and Engineering140(6), p.061003, March 2018.
  • M.R. Khoshdarregi, and Y. Altintas, “Dynamics of Multipoint Thread Turning—Part II: Application to Thin-Walled Oil Pipes,” Journal of Manufacturing Science and Engineering140(4), p.041016, February 2018.
  • O. Tuysuz and Y. Altintas, “Time-Domain Modeling of Varying Dynamic Characteristics in Thin-Wall Machining Using Perturbation and Reduced-Order Substructuring Methods,” Journal of Manufacturing Science and Engineering140(1), p.011015, November 2017.
  • O. Tuysuz and Y. Altintas, “Frequency domain updating of thin-walled workpiece dynamics using reduced order substructuring method in machining,” Journal of Manufacturing Science and Engineering139(7), p.071013, April 2017.
  • C. Sun and Y. Altintas, “Chatter free tool orientations in 5-axis ball-end milling,” International Journal of Machine Tools and Manufacture106, pp.89-97, July 2016.
  • A. Comak, O. Ozsahin, and Y. Altintas, “Stability of Milling Operations With Asymmetric Cutter Dynamics in Rotating Coordinates,” Journal of Manufacturing Science and Engineering138(8), p.081004, March 2016.
  • S. Xiang and Y. Altintas, “Modeling and compensation of volumetric errors for five-axis machine tools,” International Journal of Machine Tools and Manufacture101, pp.65-78, February 2016.
  • Y. Altintas, “Virtual high performance machining,” Procedia CIRP46, pp.372-378, 2016.
  • A. Yuen, and Y. Altintas, “Trajectory generation and control of a 9 axis CNC micromachining center,” CIRP Annals65(1), pp.349-352, 2016.
  • M.R. Khoshdarregi and Y. Altintas, “Generalized modeling of chip geometry and cutting forces in multi-point thread turning,” International Journal of Machine Tools and Manufacture98, pp.21-32, November 2015.
  • S. Tulsyan and Y. Altintas, “Local toolpath smoothing for five-axis machine tools,” International Journal of Machine Tools and Manufacture96, pp.15-26, September 2015.
  • C. Islam, I. Lazoglu, and Y. Altintas, “A three-dimensional transient thermal model for machining,” Journal of Manufacturing Science and Engineering138(2), p.021003, September 2015.
  • J. Yang, J.R.R. Mayer, and Y. Altintas, “A position independent geometric errors identification and correction method for five-axis serial machines based on screw theory,” International Journal of Machine Tools and Manufacture95, pp.52-66, August 2015.
  • M. Wan, Z.M. Kilic, and Y. Altintas, “Mechanics and dynamics of multifunctional tools,” Journal of Manufacturing Science and Engineering137(1), p.011019, February 2015.
  • F. Chen, M. Hanifzadegan, Y. Altintas, and X. Lu, “Active damping of boring bar vibration with a magnetic actuator,” IEEE/ASME Transactions on Mechatronics20(6), pp.2783-2794, February 2015.
  • J. Yang and Y. Altintas, “A generalized on-line estimation and control of five-axis contouring errors of CNC machine tools,” International Journal of Machine Tools and Manufacture88, pp.9-23, January 2015.
  • X. Lu, M. Dyck, and Y. Altintas, “Magnetically levitated six degree of freedom rotary table,” CIRP Annals64(1), pp.353-356, 2015.
  • M. Wan and Y. Altintas, “Mechanics and dynamics of thread milling process,” International Journal of Machine Tools and Manufacture87, pp.16-26, December 2014.
  • M.R. Khoshdarregi, S. Tappe, and Y. Altintas, “Integrated five-axis trajectory shaping and contour error compensation for high-speed CNC machine tools,” IEEE/ASME Trans. Mechatronics19(6), pp.1859-1871, December 2014.
  • Y. Altintas, “Adaptive Control,” CIRP Encyclopedia of Production Engineering, pp. 17–19, 2014.
  • F. Chen, X. Lu, and Y. Altintas, “A novel magnetic actuator design for active damping of machining tools,” International Journal of Machine Tools and Manufacture, vol. 85, pp. 58–69, 2014.
  • Y. Altintas, “Computer Numerical Control,” CIRP Encyclopedia of Production Engineering, pp. 249–252, 2014.
  • X. Lu, F. Chen, and Y. Altintas, “Magnetic actuator for active damping of boring bars,” CIRP Annals-Manufacturing Technology, 2014.
  • J. Yang and Y. Altintas, “Generalized kinematics of five-axis serial machines with non-singular tool path generation,” International Journal of Machine Tools and Manufacture, vol. 75, pp. 119–132, 2013.
  • M. Law, A. S. Phani, and Y. Altintas, “Position-Dependent Multibody Dynamic Modeling of Machine Tools Based on Improved Reduced Order Models,” Journal of Manufacturing Science and Engineering, vol. 135, no. 2, p. 021008, 2013.
  • K. Zhang, A. Yuen, and Y. Altintas, “Pre-compensation of contour errors in five-axis CNC machine tools,” International Journal of Machine Tools and Manufacture, vol. 74, pp. 1–11, 2013.
  • O. Tuysuz, Y. Altintas, and H.-Y. Feng, “Prediction of cutting forces in three and five-axis ball-end milling with tool indentation effect,” International Journal of Machine Tools and Manufacture, vol. 66, pp. 66–81, 2013.
  • M. Law, Y. Altintas, and A. Srikantha Phani, “Rapid evaluation and optimization of machine tools with position-dependent stability,” International Journal of Machine Tools and Manufacture, vol. 68, pp. 81–90, 2013.
  • A. Yuen, K. Zhang, and Y. Altintas, “Smooth trajectory generation for five-axis machine tools,” International Journal of Machine Tools and Manufacture, vol. 71, pp. 11–19, 2013.

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