Gene Zak

Journal Publications

M. Chen, G. Zak, P. Bates, “Description of transmitted energy during Laser Transmission Welding of polymers”, Welding in the World, IIW-2323-11, Vol. 57, No. 2, pp. 171-178, Jan/Feb 2013.

E. Azhikannickal, P. J. Bates, G. Zak, “Laser light transmission through thermoplastics as a function of thickness and laser incidence angle: Experimental and Modeling,” ASME Journal of Manufacturing Science and Engineering, Vol. 134, No. 6, pp. 061007-1 to 6, Dec 2012.

E. Azhikannickal, P. Bates, G. Zak, “Thermal Imaging Technique to Characterize Laser Light Reflection from Thermoplastics,” Optics and Laser Technology, Vol. 44, No. 5, pp. 1456-1462, Jul 2012.

E. Azhikannickal, P. Bates, G. Zak, “Use of Thermal Imaging to Characterize Laser Light Reflection from Thermoplastics as a Function of Thickness, Laser Incidence Angle and Surface Roughness,” Optics and Laser Technology, Vol. 44, No. 5, pp. 1491-1496, Jul 2012.

M. Chen, P. Bates, G. Zak, M. McLeod, B. Baylis, "Experimental study on gap bridging in contour Laser Transmission Welding of polycarbonate and polyamide," Polymer Engineering & Science, Vol. 51, No. 8, pp. 1626-1635, Aug 2011.

M. Chen, P. Bates, G. Zak, "Effect of carbon black on light transmission in laser welding of thermoplastics," Journal of Materials Processing Technology, Vol. 211, No. 1, pp. 43-47, Jan 2011.

C. Y. Wang, P. J. Bates, G. Zak, "Optical properties characterization of thermoplastics used in laser transmission welding: Scattering and Absorbance," Advanced Materials Research, Vols. 97-101, pp. 3836-3841, Mar 2010.


L.S. Mayboudi, A.M. Birk, G. Zak, P.J. Bates, "Finite volume model for laser-soot interaction for a laser transmission welding process," Journal of Laser Applications, Vol. 22, No. 1, pp. 22-28, Feb 2010.


A. Kritskiy, G. Zak, P.J. Bates, "Laser Transmission Welding of nylon tubes and plates - experimental," Journal of Manufacturing Science and Engineering, Vol. 132, pp. (051002)1-8, Oct 2010.


G. Zak, L. Mayboudi, M. Chen, P. J. Bates, M. Birk, "Weld line transverse energy density distribution measurement in Laser Transmission Welding of thermoplastics," Journal of Materials Processing Technology, Vol. 210, No. 1, pp. 24-31, Jan 2010.

M. Chen, G. Zak, P.J. Bates, "3D finite element modeling of contour laser transmission welding of polycarbonate," Welding in the World, Vol. 53, No. 7/8, Jul/Aug 2009.

L.S. Mayboudi, A.M. Birk, G. Zak, P.J. Bates, "A three-dimensional thermal finite element model of laser transmission welding for lap-joint," International Journal of Modelling and Simulation, Vol. 29, No. 2, pp. 149-155, 2009.

L.S. Mayboudi, A.M. Birk, G. Zak, P.J. Bates, " Infrared observations and finite element modeling of a laser transmission welding process," Journal of Laser Applications, Vol. 21, No. 3, pp. 111-118, 2009.

P. J. Bates, S. Tan, G. Zak, M. McLeod, "Shear strength and meltdown behavior of reinforced polypropylene assemblies made by resistance welding," Composites Part A: Applied Science and Manufacturing (Paper No. JCOMA-07-592), Vol. 40, No. 1, pp. 28-35, Jan 2009.

M. Chen, G. Zak, P.J. Bates, "Estimating contour Laser Transmission Welding start-up conditions using a novel non-contact method," Welding in the World, IIW-1912-08, Vol. 52, No. 11/12, pp. 71-76, Nov/Dec 2008.

M. Chen, J. Jeswiet, P.J. Bates, G. Zak, "Experimental study on sheet metal bending with medium-power diode laser," Proceedings of the Institution of Mechanical Engineers, Part B, Journal of Engineering Manufacture, Vol. 222, No. 3 , pp. 381-389, Mar 2008.

A. Alami, G. Zak, "Embedded capacitive displacement sensing within laminated metal structures," to be published in AES Technical Reviews International Journal, Part B: IJAMAIM - International Journal of Advances in Mechanics and Applications of Industrial Materials, Vol. 1, No. 1, pp. 27-34, 2008.

F. L-Y Yuen, G. Zak, S. Waldman, A. Docoslis, "Morphology of fibroblasts grown on substrates formed by dielectrophoretically aligned carbon nanotubes," Cytotechnology, Vol.56, No. 1, pp. 9-17, Jan 2008.

L.S. Mayboudi, A.M. Birk, G. Zak, P.J. Bates, "Effect of Soot Particles on the Laser Absorption by Thermoplastics in Laser Welding," AES Technical Reviews International Journal, Part A: IJNAEM - International Journal of Nano and Advanced Engineering Materials, Vol. 1, No.1, pp. 47-55, 2008.

Y.Z. Wan, G. Zak, S. Naumann, S. Redekop, I. Slywynska, Y. Jiang, "Study of 2.5-D glass-fabric-reinforced light-curable resin composites for orthotic applications," Composites Science and Technology, Vol. 67, No. 13, pp. 2739-2746, Oct 2007.

L.S. Mayboudi, A.M. Birk, G. Zak, P.J. Bates, "Thermal imaging studies and 3-D thermal finite element modelling of laser transmission welding of thermoplastics for a lap-joint configuration," ASME Journal of Heat Transfer, Vol. 129, No. 9, pp. 1177-1186, Sep 2007.

T. Gilbert, V. Krstic, G. Zak, "Machining of aluminium nitride with ultra-violet and near-infrared Nd:YAG lasers," Journal of Materials Processing Technology, Vol.189, Nos. 1-3, pp.409‑417, Jul2007.

C. Y. Wang, P.J. Bates, M. Aghamirian, G. Zak, R. Nicholls, M. Chen, "Quantitative morphological analysis of carbon black in polymers used in laser transmission welding," Welding in the World, Vol. 51, No. 3/4, pp. 85-90, Mar/Apr 2007.

L.S. Mayboudi, A.M. Birk, G. Zak, P.J. Bates, "A 3-D thermal model for spot laser transmission welding of thermoplastics," Welding in the World, Vol. 51, Nos. 1/2, pp.74-78, 2007 (IIW-1774-06).

C.A. Bellemare-Davis, K. Karan, J.G. Pharoah, G. Zak, "The analysis and design of microchannel reactors," Advanced Materials Research, Vols. 15-17, pp. 321-326, 2007.

L.S. Mayboudi, A.M. Birk, G. Zak, P.J. Bates, "A 2-D thermal model for Laser Transmission Welding of thermoplastics," Journal of Laser Applications, Vol. 18, No. 3, pp. 192-198, Aug.2006.

R. Prabhakaran, M. Kontopoulou, G. Zak, P. Bates, B. Baylis, "Contour laser-transmission welding of glass reinforced nylon 6," Journal of Thermoplastic Composite Materials, Vol. 19, No. 4, pp.427-439, Jul 2006.

R. Prabhakaran, M. Kontopoulou, P. Bates, G. Zak, V. Sidiropoulous, "Simulation of heat transfer in laser transmission welding," International Polymer Processing, Vol. 20, No. 4, pp. 410-416, 2005.

Conference Publications

P.J. Bates, G. Zak,  M. Chen, “In contour Laser Transmission Welding – How fast is fast enough,” ANTEC 2013, April 22-25, Cincinnati, OH, Society of Plastics Engineers, 2013.

E. Azhikannickal, P. Bates, G. Zak, "Laser light transmission through thermoplastics as a function of thickness and laser incidence angle: Experimental," ANTEC 2011, May 1-5, Boston, MA, Society of Plastics Engineers, Paper PENG-01-2011-0638, 2011.


P. Bates, S. Khosravi, G. Zak, "Polymer degradation during contour Laser Transmission Welding," ANTEC 2011, May 1-5, Boston, MA, Society of Plastics Engineers, Paper PENG-11-2010-0168, 2011.


X. Cao, P. Bates, G. Zak, "Weld Read-Through Defects in Laser Transmission Welding," SAE 2011 Congress, Apr 12-14, Detroit, MI, Paper 11M-0373 (2011-01-0476), 2011.

M. Furlan, G. Zak, "Effect of grain size on the laser machinability of alumina," ICALEO 2009, Nov 2-5, Orlando, FL, pp. 1086-1091.

C. Y. Wang, P. J. Bates, G. Zak, "Optical properties characterization of thermoplastics used in laser transmission welding: transmittance and reflectance," ANTEC 2009, Jun 22-24, Chicago, IL, Society of Plastics Engineers, 2009.

M. Chen, G. Zak, P.J. Bates, M.R. Kamal, M. Al-Wohoush, "Finite element modeling and microstructure analysis for contour laser transmission welding of glass fibre reinforced nylon 6," ANTEC 2009, Jun 22-24, Chicago, IL, Society of Plastics Engineers, Paper ANTEC- 0430-2009.

A. Kritskiy, G. Zak, P.J. Bates, "Laser welding of nylon tubes to plates using conical mirrors," ANTEC 2009, Jun 22-24, Chicago, IL, Society of Plastics Engineers, Paper ANTEC- 0434 -2009.

L.S. Mayboudi, A.M. Birk, G. Zak, P.J. Bates, " Infrared observations of a laser transmission welding process and finite element modeling," Paper #605, ICALEO 2008, Oct 20-23, Temecula, CA, pp. 303-310.

L.S. Mayboudi, A.M. Birk, G. Zak, P.J. Bates, " A finite volume model for laser-soot interaction for a laser transmission welding process," Paper #604, ICALEO 2008, Oct 20-23, Temecula, CA, pp. 294-302.

M. Chen, G. Zak, P.J. Bates, "3D finite element modeling of contour laser transmission welding of polycarbonate," International Institute of Welding Annual Assembly (IIW 2008), Jul 6-11, Graz, Austria.

M. Chen, G. Zak, P.J. Bates, "Prediction of gap bridging in laser transmission welding of amorphous polymers," ANTEC 2008, May 4-8, Milwaukee, Wisconsin, Society of Plastics Engineers, Paper ANTEC-0266-2008.

A. Alami, G. Zak, "Embedded capacitive displacement sensing within laminated metal structures," AES-ATEMA 2007 conference, Montreal, Canada, Aug 6-10, 2007.

L.S. Mayboudi, A.M. Birk, G. Zak, P.J. Bates, "Effect of Soot Particles on the Laser Absorption by Thermoplastics in Laser Welding," AES-ATEMA 2007 conference, Montreal, Canada, Aug 6-10, 2007.

M. Chen, G. Zak, P.J. Bates, M. McLeod, D. Rouison, "Surface damage threshold in laser transmission welding of polycarbonate," ANTEC2007, May 6-11, Cincinnati, OH, Society of Plastics Engineers, pp. 2798-2802.

M. Chen, G. Zak, P.J. Bates, B. Baylis, "Gap bridging in laser transmission welding of PA6," ANTEC2007, May 6-11, Cincinnati, OH, Society of Plastics Engineers, pp. 2788-2792.

L.S. Mayboudi, A.M. Birk, G. Zak, P.J. Bates, "A 3-D thermal model of laser transmission contour welding for a lap joint," ANTEC 2007, May 6-11, Cincinnati, OH, Society of Plastics Engineers, pp. 2813-2817.

M. Chen, G. Zak, P.J. Bates, B. Baylis, M. McLeod, "Method of evaluating shear strengths in contour laser transmission welding," 2007 SAE World Congress, Paper # 2007-01-0571.

L.S. Mayboudi, A.M. Birk, G. Zak, P.J. Bates, "Thermal imaging studies and 3-D finite element modeling for laser transmission welding of thermoplastics in a lap-joint," ASME International Mechanical Engineering Congress and Exposition, Chicago, IL, Nov 5-10, 2006, Paper # IMECE2006-13780.

L.S. Mayboudi, A.M. Birk, G. Zak, P.J. Bates, "A three-dimensional finite element thermal model for laser transmission welding of thermoplastics," The 15th IASTED International Conference on Applied Simulation and Modelling, June 26-28, 2006, Rhodes, Greece, pp.531-536.

C.A. Bellemare-Davis, K. Karan, J.G. Pharoah, G. Zak, "The analysis and design of microchannel reactors," submitted to THERMEC' 2006, Vancouver, BC, Feb 2006.

S. Tan, G. Zak, P. Bates, J. Mah, "Resistance welding of glass-fiber-reinforced PP: modeling and experiments," Proceedings of ANTEC 2006, May 7-11, Charlotte, NC, Society of Plastics Engineers, pp. 2236-2240.

L.S. Mayboudi, M. Chen, G. Zak, A.M. Birk, P.J. Bates, "Characterization of beam profile for high-power diode lasers with application to laser welding of polymers," Proceedings of ANTEC 2006, May 7-11, Charlotte, NC, Society of Plastics Engineers, pp. 2274-2278.

M. Chen, G. Zak, P.J. Bates, "Laser absorption coefficient measurement of amorphous polymers for Laser Transmission Welding," Proceedings of ANTEC 2006, May 7-11, Charlotte, NC, Society of Plastics Engineers, pp. 2291-2295.

S. Tan, G. Zak, P. Bates, J. Mah, "Resistive Implant Welding of Glass Fiber Reinforced Polypropylene Compounds," Paper # 06M-217, 2006 SAE World Congress, April 3-6, Cobo Center, Detroit, Michigan.

L.S. Mayboudi, A.M. Birk, G. Zak, P.J. Bates, "A 2-D thermal model for Laser Transmission Welding of thermoplastics," Paper #805, ICALEO 2005, Oct 29- Nov 4, Miami, Florida, pp. 402-409.

A. Al-Alami, G. Zak, "Finite Element Model of the Laminated Metal Tooling injection mould insert," Proceedings of 14th International Conference on Flexible Automation & Intelligent Manufacturing - FAIM2004, Ryerson University, Toronto, Ontario, Jul 12-14, 2004, Vol. 2, pp. 1025-1032.

T. Gilbert, V. Krstic, G. Zak, "Laser machining of single-layer pockets in Aluminum Nitride plates," Symposium on Materials in Mechanical Engineering - CSME Forum 2004, London, Ontario, Jun2004.