Influence of the welding parameters on the structure and mechanical properties of vibration welded joints of dissimilar grades of nylons

• Autorzy: Węglowska A. , Pietras A.
• Języki publikacji: EN

Abstrakty

EN

Because of very attractive mechanical properties, nylons make interesting group of materials, used in many engineering applications. Vibration welding is a welding method used to join various kinds of thermoplastics. Almost 15% of all welds of thermoplastics are made with the use of vibration welding. The ability of vibration welding of different kind of polymers may present cost advantage over the other welding techniques and may allow to produce elements of lower weight and of a high quality. This work presents results of vibration welding of dissimilar materials joints made of nylon 66 (PA66) and 30% glass fibres nylon 66 (PA66 GF30). The aim of the studies was to determine the influence of the welding conditions on the quality of vibration welded joints. The quality assessment was done on the base of tensile tests and microscopy examination, conducted on light microscopy and scanning electron microscopy (SEM). Results of the tensile test indicate that it is possible to achieve good quality of joints at the proper welding conditions. The light microscopy examination showed that the welding parameters influence the orientation of the glass fibres in the weld zone, on the continuity of the material in the weld and on the thickness of the weld. The results of the SEM indicate that the vibration welded joint is formed as a result of joining of the matrixes of two welded nylons.

Słowa kluczowe

EN

vibration welding; nylon; microstructure; tensile strength

PL

spawanie; nylon; mikrostruktury; wytrzymałość na rozciąganie

• Wydawca: Springer ; Wrocław University of Science and Technology
• Czasopismo: Archives of Civil and Mechanical Engineering
• Rocznik: 2012
• Tom: Vol. 12, no. 2
• Strony: 198--204
• Opis fizyczny: Bibliogr. 14 poz., rys., tab., wykr.

Twórcy

autor

Węglowska A.

• Instytut Spawalnictwa, ul. Bł. Czesława 16-18, 44-100 Gliwice, Poland

autor

Pietras A.

• Instytut Spawalnictwa, ul. Bł. Czesława 16-18, 44-100 Gliwice, Poland

Bibliografia

• [1] V.K. Stokes, Welding of thermoplastics. Part I: Phenomenology of the welding process, Polymer Engineering and Science 28 (11) (1988) 718–727.
• [2] V.K. Stokes, Vibration welding of thermoplastics. Part II: Analysis of the welding process, Polymer Engineering and Science 28 (11) (1988) 728–739.
• [3] C.J. Nonhof, M. Riepen, A.W. Melchers, Estimates for process conditions during the vibration welding of thermoplastics, Polymer Engineering and Science 36 (11) (1996) 2018–2028.
• [4] V.K. Stokes, Analysis of the friction (spin) welding process for thermoplastics, Journal of Materials Science 23 (1998) 2772–2785.
• [5] K.Y. Tsang, D.L. DuQuesnay, P.J. Bates, Fatigue properties of vibration welded nylon 6 and nylon 66 reinforced with glass fibers, Composites: Part B 39 (2008) 396–404.
• [6] V. LeBlanc, B. Baylis, Vibration welding of dissimilar nylons, in: Annual Technical Conference ANTEC, 2001.
• [7] P.J.Bates,J.C.Mah,H.Liang,Microstructureofvibrationwelded nylon 66 joints, in: Annual Technical Conference ANTEC, 2001.
• [8] P.J.Bates,C.Dyck,M.Osti,Vibrationweldingofnylon6tonylon 66, Polymer Engineering and Science 44 (4) (2004) 760–771.
• [9] K.Y. Tsang, D.L. DuQuesnay, P.J. Bates, Fatigue strength of vibration welded unreinforced nylon butt joints, Polymer Engineering and Science 45 (7) (2005) 935–944.
• [10] Handbook of Plastics Joining. A Practical Guide, first ed., Plastics Design Library, New York, 1998.
• [11] Young-Mi Chung, M.R. Kamal, Morphology of PA–6 vibration welded joints and its effect on weld strength, Polymer Engineering and Science 48 (2) (2008) 240–248.
• [12] Ch. Krisham, D. Toussant, A. Benatar, Comparison of weld morphology of polycarbonate and polypropylene for hot plate, vibration and ultrasonic welding, in: Annual Technical Conference ANTEC, 2004.
• [13] C. Dyck, M. Osti, P.J. Bates, Strength of vibration welds made from dissimilar nylons, in: Annual Technical Conference ANTEC, 2002.
• [14] H. Seatchling, Tworzywa sztuczne Poradnik, fifth ed., WNT, Warsaw, 2000.