Effect of Double Shoulder Tool Rotational Speed on Thermo-Physical Characteristics of Friction Stir Welded 16mm Thick Nylon6

Abstract:

Friction stir welding (FSW) of polymers is relatively a new concept among modern polymer joining techniques. This study demonstrates the applicability of FSW on 16mm thick nylon-6 plates at constant welding rate of 25mm/min and varying rotational speed between 300 to 1000RPM. A special designed tool was fabricated which has double shoulder and right-hand threaded pin profile. It has shown excellent results at relatively lower rotation speeds. Visual inspection and microstructural examination of cross sections showed that the cavities and tunnel defects appeared only at higher rotational speeds. A linear relationship was observed between temperature and rotation speed.

• Periodical: Applied Mechanics and Materials (Volumes 799-800)
• Pages: 251-255
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.799-800.251
• Online since: October 2015
• Authors: Adeel Zafar*, Mokhtar Awang, Sajjad Raza Khan, Sattar Emamian
• Keywords: Friction Stir Welding, Nylon-6, Polymer, Thermocouple, Threaded pin

References

[1] S. T. Amancio-Filho and J. F. dos Santos, Joining of polymers and polymer–metal hybrid structures: Recent developments and trends, Polymer Engineering & Science, vol. 49, pp.1461-1476, (2009).

DOI: 10.1002/pen.21424

[2] A. B. Abibe, S. T. Amancio-Filho, J. F. Dos Santos, and E. Hage, Development and Analysis of a New Joining Method for Polymer-Metal Hybrid Structures, Journal of Thermoplastic Composite Materials, vol. 24, pp.233-249, March 1, 2011 (2011).

DOI: 10.1177/0892705710381469

[3] F. C. Liu, J. Liao, and K. Nakata, Joining of metal to plastic using friction lap welding, Materials & Design, vol. 54, pp.236-244, 2/ (2014).

DOI: 10.1016/j.matdes.2013.08.056

[4] T. C. Z. Kiss, Applicability of friction stir welding in polymeric materials., Polytech. Mech. Eng., vol. (51), pp. pp.15-18, (2007).

DOI: 10.3311/pp.me.2007-1.02

[5] A. Arici and T. Sinmazçelýk, Effects of double passes of the tool on friction stir welding of polyethylene, Journal of Materials Science, vol. 40, pp.3313-3316, 2005/06/01 (2005).

DOI: 10.1007/s10853-005-2709-x

[6] M. Pirizadeh, T. Azdast, S. Rash Ahmadi, S. Mamaghani Shishavan, and A. Bagheri, Friction stir welding of thermoplastics using a newly designed tool, Materials & Design, vol. 54, pp.342-347, 2/ (2014).

DOI: 10.1016/j.matdes.2013.08.053

[7] P. H. F. Oliveira, S. T. Amancio-Filho, J. F. dos Santos, and E. Hage Jr, Preliminary study on the feasibility of friction spot welding in PMMA, Materials Letters, vol. 64, pp.2098-2101, 10/15/ (2010).

DOI: 10.1016/j.matlet.2010.06.050

[8] M. Aydin, Effects of Welding Parameters and Pre-Heating on the Friction Stir Welding of UHMW-Polyethylene, Polymer-Plastics Technology and Engineering, vol. 49, pp.595-601, 2010/05/19 (2010).

DOI: 10.1080/03602551003664503

[9] Z. Kiss and T. Czigány, Effect of welding parameters on the heat affected zone and the mechanical properties of friction stir welded poly(ethylene-terephthalate-glycol), Journal of Applied Polymer Science, vol. 125, pp.2231-2238, (2012).

DOI: 10.1002/app.36440

[10] M. K. Bilici and A. İ. Yükler, Influence of tool geometry and process parameters on macrostructure and static strength in friction stir spot welded polyethylene sheets, Materials & Design, vol. 33, pp.145-152, 1/ (2012).

DOI: 10.1016/j.matdes.2011.06.059

[11] H. Ahmadi , N.B. Mostafa Arab, F. Ashenai Ghasemi, R. Eslami Farsani, Influence of Pin Profile on Quality of Friction Stir Lap Welds in Carbon Fiber Reinforced Polypropylene Composite, International Journal of Mechanics and Applications, (2012).

DOI: 10.5923/j.mechanics.20120203.01

[12] A. Bagheri, T. Azdast, and A. Doniavi, An experimental study on mechanical properties of friction stir welded ABS sheets, Materials & Design, vol. 43, pp.402-409, 1/ (2013).

DOI: 10.1016/j.matdes.2012.06.059

[13] N. Mendes, A. Loureiro, C. Martins, P. Neto, and J. N. Pires, Effect of friction stir welding parameters on morphology and strength of acrylonitrile butadiene styrene plate welds, Materials & Design, vol. 58, pp.457-464, 6/ (2014).

DOI: 10.1016/j.matdes.2014.02.036

[14] S. Inaniwa, Y. Kurabe, Y. Miyashita, and H. Hori, Application of friction stir welding for several plastic materials, in Proceedings of the 1st International Joint Symposium on Joining and Welding: Osaka, Japan, 6-8 November 2013, 2014, p.137.

DOI: 10.1533/978-1-78242-164-1.137

[15] K. Panneerselvam and K. Lenin, Joining of Nylon 6 plate by friction stir welding process using threaded pin profile, Materials & Design, vol. 53, pp.302-307, 1/ (2014).

DOI: 10.1016/j.matdes.2013.07.017

[16] R. S. Lehrle, I. W. Parsons, and M. Rollinson, Thermal degradation mechanisms of nylon 6 deduced from kinetic studies by pyrolysis-g. c, Polymer Degradation and Stability, vol. 67, pp.21-33, 1/ (2000).

DOI: 10.1016/s0141-3910(99)00112-3