EXPERIMENTAL INVESTIGATIONS FOR MECHANICAL AND METALLURGICAL PROPERTIES OF FRICTION STIR WELDED RECYCLED DISSIMILAR POLYMER MATERIALS WITH METAL POWDER REINFORCEMENT by Vinay Kumar
Abstract
Friction stir welding (FSW) is an established process for joining of plastics, polymers materials and alloys. Many applications of this process have been investigated by introducing different milling setups. No work has been reported so far on morphological properties of friction stir welded process in which dissimilar plastic materials are welded after some sort of reinforcement in joining material. In the present work an experiment has been performed to do friction stir welding of low density poly ethylene and high density poly ethylene. These dissimilar plastic (DP) based materials are welded by improving the melt flow index (MFI) of polymers and by reinforcement of Fe metal powder. The present study of friction stir welding for dissimilar plastic LDPE and HDPE is carried on Vertical Milling Machine under the consideration of three input parameters (specimen thickness, tool feed rate and tool rotational speed to perform welding). The effect of FSW process parameters on the morphological properties such as Shore D hardness, tensile strength and porosity of weld joint is investigated and optimization of welding parameters is performed by Minitab software whose outcomes are well explained using photomicrographs.
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