Associate Professor

McMaster University
Department of Mechanical Engineering
Hamilton, Ontario, Canada L8S 4L7

Office: ETB 216 (Mail to JHE-310)
Email:
Voice: (905) 525-9140 x27916
Website: MMRI, MCMO


  • Dipl. Mech. Eng., Singapore Polytechnic, 1991
    B.Eng., University of Birmingham, 1995
    Ph.D., University of Birmingham, 2001

Research Interests

  • Machining processes and systems
  • Manufacturing processes and systems
  • Metal forming and cutting
  • Finite element analysis

Specific Research Activities

My current field of research is residual stresses, abrasive waterjet machining, micro-scale cutting, burr formation, chip curling, “green” machining and high speed/performance cutting. A key component of the research approach is to employ finite element analysis to a) study the highly complex deformation process under large strain and high strain rates at the macro and micro scale levels and b) process optimize to improve productivity and enhance part quality.

Topics that are of current interest include:

  • Modelling the effects of material properties, thermal and mechanical loading on residual stresses and fatigue performance
  • Numerical and experimental investigate the effects of workpiece microstructure during macro and micro scale cutting
  • Development of multi-physics model to simulate the abrasive water jet machining process
  • Experimentally investigate the effects of chemical composition and abrasive particle size on tool performance
  • Develop Arbitrary Lagrangian and Eulerian (ALE) technique to simulate conventional and Hard broaching operation


Industrial Sponsors

General Motors (Canada, USA), Sandvik Coromant (Canada, USA), DANA Long Manufacturing, Wescast,
United Technologies Research Centre, Pratt and Whitney USA, LINAMAR.


Selected Publications

  • Nasr M., Ng E. , Elbestawi M.A., 2007, ‘Effects of Strain Hardening and Initial Yield Strength on Machining-Induced Residual Stresses', Accepted for publication in the Transactions of the ASME, Journal of Engineering Materials and Technology
  • Aspinwall D.K., Dewes R.C., Ng E. , Sage C., Soo S.L., 2007, ‘The Influence of Cutter Orientation and Workpiece Angle on Machinability when High Speed Milling Inconel 718 under Finishing Conditions', International Journal of Machine Tools and Manufacture, Vol. 47, No. 12-13, p. 1839-1826
  • Simoneau A., Ng E. , Elbestawi M.A., 2007, ‘Grain Size and Orientation Effects when Microcutting AISI 1045 Steel', Annals of the CIRP, Vol. 56, No. 1, p. 57-60
  • Omar E.E., El-Wardany T.I., Ng E. , Elbestawi M.A., 2007, ‘Surface Prediction in High Speed Machining', International Journal of Machine Tools and Manufacture, Vol. 47, No. 7-8, p. 1263-1275
  • Coelho R.T., Ng E. , Elbestawi M.A., 2007, ‘Tool wear when Turning Hardened AISI 4340 with Coated PCBN Tools using Finishing Cutting Conditions', International Journal of Machine Tools and Manufacture, Vol. 47, No. 2, p. 263-272
  • Iver R., Koshy P., Ng E. , 2007, ‘Helical Milling: An Enabling Technology for Hard Machining Precision Holes in AISI D2 Tool Steel', International Journal of Machine Tools and Manufacture, Vol. 47, No. 2, p. 205-210.
  • M. Nasr, Ng E. , Elbestawi M.A., 2007, “Modelling the Effects of Tool-Edge Radius on Residual Stresses when Orthogonal Cutting AISI 316L”, International Journal of Machine Tools and Manufacture, Vol. 47, No. 2, p. 401-411
  • Simoneau A., Ng E. , Elbestawi M.A., 2007, ‘Modelling the effects of Microstructure in Metal Cutting', International Journal of Machine Tools and Manufacture, Vol. 47, No. 2, p. 368-375
  • Aly M.F., Ng E. , Veldhuis S.C., Elbestawi M.A., 2006, ‘Prediction of Cutting Forces in the Micro-Machining of Silicon using a “Hybrid Molecular Dynamic-Finite Element Analysis” Force Model', International Journal of Machine Tools and Manufacture, Vol. 46, No. 14, p. 1727-1739
  • Simoneau A., Ng E. , Elbestawi M.A., 2006, ‘The Effect of Microstructure on Chip Formation and Surface Defects in Microscale, Mesoscale, and Macroscale Cutting of Steel', Annals of the CIRP, Vol. 55, No. 1, p. 97-102
  • Coelho R.T., Ng E. , Elbestawi M.A., 2006, ‘A Study of Wear on Coated PCBN Tools when Turning Hardened AISI 4340 using FEM Simulation', Industrial Diamond Review, Vol. 4/06, p. 60-67
  • Simoneau A., Ng E. , Elbestawi M.A., 2006, ‘Surface Defects During Microcutting', International Journal of Machine Tools and Manufacture, Vol. 46, No. 12-13, p. 1378-1387
  • Simoneau A., Ng E. , Eblestawi M.A., 2006, ‘Chip Formation during Microscale Cutting of a Medium Carbon Steel', International Journal of Machine Tools and Manufacture, Vol. 46, No. 5, p. 467-481
  • El-Tobgy M., Ng E. , Elbestawi M.A., 2005, ‘Modelling of Abrasive Waterjet Machining', Annals of the CIRP, Vol. 54, No. 1, p. 285-288
  • El-Tobgy M., Ng E. , Elbestawi M.A., 2005, ‘Finite Element Modelling of Erosive Wear', International Journal of Machine Tools and Manufacture, Vol. 45, No. 11, p. 1337-1346
  • Kishawy H.A., Dumitrescu M., Ng E. , Elbestawi M.A., 2004, ‘Effect of Coolant Strategy on Tool Performance, Chip Morphology and Surface Quality During High Speed Machining of Aluminum Alloys', International Journal of Machine Tools and Manufacture, Vol. 45, p. 219-227
  • El-Tobgy M., Ng E. , Elbestawi M.A., 2004, ‘3D Finite Element Modelling of the Residual Stress Induced by Shot Peening Process', Journal of Engineering Manufacturing, Vol. 218, p. 1471-1481
  • Ng E. , Szablewski D., Dunitrescu M., Elbestawi M.A., Sokolowski J.H., 2004, ‘High Speed Face Milling of a Aluminium Silicon Alloy Casting', Annals of the CIRP, Vol. 53/1, p. 69-72
  • Ng E. , El-Wardany T.I., Elbestawi M.A., 2003, ‘Influence of Flank Wear Length on Residual Stress and Workpiece Quality in Machined Surfaces', International Journal of Mechanical Production Systems, April issue, p. 10-21
  • Soo S.L., Ng E. , Dewes R.C., Aspinwall D.K., Burrows J.M., 2002, ‘Point Grinding of Nickel Based Superalloys', Industrial Diamond Review, Vol. 62, p. 109-116
  • Ng E. , El-Wardany T.I., Dumitrescu M., Elbestawi M.A., 2002, ‘Physics – Based Simulation Of High Speed Machining', International Journal of Machining Science and Technology, Vol. 6, No. 3, p. 301-329
  • Ng E. , Aspinwall D.K., 2002, ‘Modelling of the Hard Part Machining Process', Journal of Material Processing Technology, Vol. 127, p. 222-229
  • Ng E. , Aspinwall D.K., 2002, ‘The Effect Of Workpiece Hardness And Cutting Speed On Machinability Of AISI H13 Hot Work Die Steel When Using PCBN Tooling', Transaction Of The American Society of Mechanical Engineering, Journal of Manufacturing Science and Engineering, Vol. 124, p. 588-594
  • Lee C.M., Kim S.W., Lee D.W., Ng E. , Aspinwall D.K., 2002, ‘Evaluation of Machinability under Various Cutting Conditions in High Speed Machining Using Ball Nose End Mills – Effects of Cutter Orientation and Cutting Environments', Key Engineering Materials, Vol. 233-236, p. 483-488
  • Book Chapter: Elbestawi M.A., Dumitrescu M., Ng E. , 2006, ‘Tool Condition Monitoring In Machining', Springer Series in Advanced Manufacturing: Condition Monitoring and Control for Intelligent Manufacturing, Springer London , ISBN: 978-1-84628-268-3, p. 55-82