Experimental study on optimization of CO2 laser welding parameters for polypropylene-clay nanocomposite welds
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- 作者：M. R. Nakhaei (1109)
N. B. Mostafa Arab (1109)
Gh. Naderi (2109)
M. Hoseinpour Gollo (1109) - 关键词：CO2 laser ; Optimization ; Polypropylene ; clay nanocomposite ; Taguchi method ; Weld strength
- 刊名：Journal of Mechanical Science and Technology
- 出版年：2013
- 出版时间：March 2013
- 年：2013
- 卷：27
- 期：3
- 页码：843-848
- 全文大小：992KB
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N. B. Mostafa Arab (1109)
Gh. Naderi (2109)
M. Hoseinpour Gollo (1109)
1109. Faculty of Mechanical Eng., Shahid Rajaee Teacher Training University, Tehran, Iran
2109. Iran Polymer and Petrochemical Institute, Tehran, Iran - ISSN：1976-3824
文摘
In this paper, polypropylene-clay nanocomposite sheets of 2 mm thickness with 0 wt%, 3 wt% and 5 wt% nanoclay are butt welded using a CO2 laser to determine the effect of clay content and laser process parameters on weld tensile strength. For this purpose, Taguchi parametric design and optimization method was used to design experiments and develop a model to predict weld tensile strength as a function of clay content and laser process parameters such as laser power, welding speed and focal position. The adequacy of the model was checked using analysis of variance and by conducting extra confirmation tests. Using Taguchi optimization approach, the optimum levels of parameters were determined. The results indicated that an increase in clay content and welding speed decreased the weld strength, whereas increasing laser power increased weld strength. Furthermore, increase in focal position showed an increasing and then a decreasing effect on weld strength.