Effect of nanoclay and process parameters on weld strength and seam width for CO2 laser welding of polypropylene - clay nanocomposite

In the present research, the tensile strength and seam width of butt welds in CO2 laser welding of polypropylene-clay nanocomposite are investigated. Polypropylene-clay nanocomposite sheets with 0 wt%, 3 wt% and 5 wt% nanoclay are welded to determine the effect of clay content and process parameters such as laser power, welding speed and focal position on weld tensile strength and seam width. According to the obtained results, as amount of nanoclay increases, the weld strength and weld seam width decrease. As a result, in samples with 0%, 3%, and 5% clay, the weld strength was found to be 94%, 58%, and 42% of base material, respectively. Increase in laser power increases the strength and width of the welds but increases in welding speed decreases the welds strength and width

کلیدواژه ها:

Polypropylene-clay nanocomposites ، Laser welding ، weld strength ، weld width