Investigations on Mechanical Properties of Weldments Developed under Assistance of Vibratory Treatment
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Abstract
Advancements in conventional manufacturing methods become inevitable to produce high quality products. Assistance of vibratory treatment to the traditional welding process is proven successful over the reduction of weld defects. Optimal setting of vibratory parameters can produce maximum enhancement in the weld strength and its identification is very crucial. The current research examines the influence of electrode frequency at different voltages over the yield and flexural strength of the weldment. Experimental analysis is performed over the butt joint made from gas metal arc welding (GMAW) process by keeping time, amplitude as constant and varying the frequencies of electrode, workpiece together. The greatest improvement in the yield and flexural strength are observed as 652 and 800 MPa at electrode frequencies of 810, 1820 Hz at voltages of 2, 6V. The further increase of frequency brought significant drop in the increment of the studied mechanical properties. Microstructural characterization is performed to record the evidence over the grain refinement to support the maximum enhancement in mechanical properties of weld joint.
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