Investigation and characterization of brass joint fabricated by microwave hybrid heating process

Microwave energy is a novel technique for joining metals and composites in the field of manufacturing. In this paper, joining of bulk metallic material (Brass) is successfully carried out using microwave hybrid heating. Joint is formed at 480 sec exposure time with power 900 W and frequency 2.45 GHz. The joint is studied by using microstructural analysis, XRD, SEM, Tensile strength, Hardness and % elongation. Microstructural analysis reveals that small amount of porosity is observed and joint is clearly visible. Formations of various compounds which improve the mechanical properties of the joint are shown in XRD analysis. SEM analysis indicates the formation of dense joint with no cracks and voids. Tensile strength, hardness and percentage elongation were measured i.e. 292.67 MPa, 50 Hv and 7.30% respectively.