The Effect of Power and Maximum Cutting Speed on the Material Removal Rate and Cutting Volume Efficiency in CO2 Laser Cutting of Polycarbonate Sheets

Subject Areas :

Majid Hashemzadeh ¹ , Mehdi Mahammadi ²

1 - Department of Mechanical Engineering, Najafabad Branch, Islamic Azad University, Najafabad, Iran
2 - Department of Mechanical Engineering, Najafabad Branch, Islamic Azad University, Najafabad, Iran

Received: 2020-01-06 Accepted : 2020-03-15 Published : 2020-02-01

Keywords: CO2 Laser Cutting, Polycarbonate (PC), Material Removal Rate (MRR), Cutting Volume Efficiency,

Abstract :

In the laser cutting process some well-known parameters, e.g. laser power and cutting speed, play major roles in the performance of the process. Each parameter or a combination of parameters can affect the material removal volume and cutting volume efficiency. The purpose of this research is to study the effect of power and maximum cutting speed on the material removal rate (MRR) and cutting volume efficiency (αVol) in CO2 laser cutting of polycarbonate (PC) sheets. A CO2 laser cutting machine with a maximum power of 130 W was used to cut PC sheets with thicknesses of 2 to 8 mm. The spot size of the focused beam was 0.1 mm on the upper surface of the sheet. The cutting experiments were carried out by varying the laser power from 20 to 100 W and the maximum cutting speed was found for each power. In the range of applied laser parameters for cutting of PC sheets, the results show that the MRR increases with power. The results also indicate that the MRR increases with maximum cutting speed and thickness. The cutting volume efficiency (αVol) increases with power until it reaches the apex of efficiency then, it slightly reduces with increasing power.

References:

[1] Riveiro, A., Quintero, F., Lusquiños, F., del Val, J., Comesaña, R., Boutinguiza, M. and Pou, J. 2012. Experimental study on the CO₂ laser cutting of carbon fiber reinforced plastic composite. Composites Part A: Applied Science and Manufacturing. 43(8), 1400–1409.

[2] Caiazzo, F., Curcio, F., Daurelio, G. and Minutolo, F. M. C. 2005 Laser cutting of different polymeric plastics (PE, PP and PC) by a CO2 laser beam, J. Mater. Process. Technol. 159(3):279–285.

[3] Steen, W. M. 1991. Laser Material Processing. Springer.

[4] Powell, J. 1998. CO2 laser cutting, Second edition, Springer, London.

[5] Davim, J. P., Barricas, N., Conceição, M. and Oliveira, C. 2008. Some experimental studies on CO2 laser cutting quality of polymeric materials. J. Mater. Process. Technol.198(1–3):99–104.

[6] Kurt, M., Kaynak, Y., Bagci, E., Demirer, H. and Kurt, M. 2009. Dimensional analyses and surface quality of the laser cutting process for engineering plastics, Int. J. Adv. Manuf. Technol. 41(3–4):259–267.

[7] Caiazzo, F., Curcio, F., Daurelio, G. and Minutolo, F. M. C. 2005. Laser cutting of different polymeric plastics (PE, PP and PC) by a CO2 laser beam, J. Mater. Process. Technol.159(3):279–285.

[8] Schwartz, S. S. and Goodman, S. H. 1982. Plastic Materials and Processes, Van Norstrand Retnhold.

[9] Vogel, C., Mueller, A., Lehmann, D. and Taeger, F., 2012. Characterization of the Burning Behaviour of Plastics by a New Method. Open Journal of Polymer Chemistry.2(2):86-90.

[10] Haddadi, E., Moradi, M., Karimzad Ghavidel, A., Karimzad Ghavidel, A. and Meiabadi, S. 2019. Experimental and Parametric Evaluation of Cut Quality Characteristics in CO2 Laser Cutting of Polystyrene. Optik. 184:103-114.

[11] Dubey, A. and Yadava, V. 2008. Robust parameter design and multi-objective optimization of laser beam cutting for aluminium alloy sheet. The International Journal of Advanced Manufacturing Technology. 38: 268–277.

[12] Dubey, A. K. and Yadava, V. 2008 Optimization of kerf quality during pulsed laser cutting of aluminium alloy sheet. Journal of Materials Processing Technology. 204:412–418.

[13] Müller, M. C. R., Hendriks R. and Chall, H P. 2006. Significant step in wafer yield optimization and operation cost reduction due to dicing innovation. Proceedings on The International Conference on Compound Semiconductor Manufacturing Technology, CS ManTeCH Conference. Vancouver, Canada. pp 141–144.

[14] DeIorio, I., DiIlio, A. and Tagliaferri, V. 1987. Cut edge quality of GFRP by pulsed laser-material interaction analysis. Proceedings of LAMP, high Temperature Society of Japan. 279–284.

[15] Cenna, A.A. and Mathew, P. 1997. Evaluation of cut quality of fibre reinforced plastics –a review. International Journal of Machine Tools and Manufacture. 37(6):723–736.

[16] Lawrence, J., Pou, J., Low, D. K. Y. and Toyserkani, E. 2010. Advances in laser materials processing, Woodhead Publishing.

[17] Davari, M. and Hashemzadeh, M. 2018. The effect of bronze particles on CO2 laser cutting of reinforced polytetrafluoroethylene. Int J Adv Manuf Technol. 96:4029–4039.

[18] Al-Sulaiman, F.A., Yilbas, B.S. and Ahsan, M. 2006. CO2 laser cutting of a carbon/carbon multi-lamelled plain-weave structure. J Mater Process Technol. 173(3):345–351.

[19] Moradi, M., Mehrabi, O., Azdast, T. and Benyounis, K.Y., 2017. Enhancement of low power CO2 laser cutting process for injection molded polycarbonate. Optics & Laser Technology. 96: 208–218.

[20] Moradi, M., Mehrabi, O., Azdast, T. and Benyounis, K.Y. 2017. The effect of low power CO2 laser cutting process parameters on polycarbonate cut quality produced by injection molding. Modares Mechanical Engineering. 17(2):93-100.

[21] Hashemzadeh, M., Suder, W., Williams, S., Powell, J., Kaplan, A.F.H., Voisey, K.T. 2014. The Application of Specific Point Energy Analysis to Laser Cutting with 1μm Laser Radiation. Physics Procedia. 56:909-918.

[22] Brydson, J. A. 1989. Plastic Materials, Fifth edition. Butterworth.

[23] Campo, E. A. 2006. The Complete Part Design Handbook for Injection Molding of Thermoplastics, Hanser.

[24] Walter, R. N., Hackett, S. M. and Lyon, R. E. 2000. Heats of combustion of high temperature polymers, Fire and Materials, Volume 24, Issue 5, pp 245-252.