The effect of double side technique in friction stir welding of polyethylene blanks has been studied. Experiments have been designed and analyzed with the full factorial method. The process parameters were rotation speed and tool tilt angle. The optimum welding condition has been determined. It has been demonstrated that double side FSW can improve the weld quality by decreasing the problem of stress concentration in the root of the joint. By applying this technique, 80% of the base material strength is achieved. Considerable reduction in elongation and toughness of the seam weld is due to crystallinity changes of the weld zone which are indicated in the DSC test results.

This content is only available via PDF.
You do not currently have access to this content.