Abstract
The research paper investigates the effect of friction stir welding on the tensile strength (MPa) and microhardness (HV) of prepared hybrid Mg-MMC. Magnesium metal is a highly flammable material and has to be processed in control conditions. Welding of hybrid Mg-MMC through friction stir welding is the best method of joining two composites having hard reinforced materials. In this work, a friction stir welding set-up has been designed and fabricated utilizing high carbon and high chromium steel tool with required shapes of pin profile. A number of experiments have been performed through varying the parameters such as tool rotational speed (900–1400 rpm), axial loading (2–5 kN), feed rate (45 m/min) and depth of cut 0.5 mm. From the experimentation, it has been found out that tool rotational speed 1400 rpm, feed rate 45 m/min and circular pin profile exhibited the highest values, i.e. 210 MPa ultimate tensile strength and 59 HV microhardness, amongst other FSW parameters.
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