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Optimization of Process Parameters in Finishing of Weld Bead using WEDM


Prakash Kumar , Ganga institute of Technology and Management, Kablana (Jhajjar),Delhi NCR; Parvesh Dahiya, Ganga institute of Technology and Management, Kablana (Jhajjar),Delhi NCR


WEDM, Weld Bead


Accompanying the development of mechanical industry, the demand for alloy materials having high hardness, toughness and impact resistance are increasing. However, these materials are difficult to machine by traditional machining methods. Hence, non-traditional machining methods including electrochemical machining, laser beam machining and electrical discharge machining (EDM) are applied. Wire electrical discharge machining (WEDM) is widely accepted non-traditional material removal process used to manufacture components with intricate shapes and profile. It is a specialized thermal machining process capable of accurately machining parts with varying hardness and complex shapes, which have sharp edges that are very difficult to be machined by the main stream machining processes. This principal of the WEDM process is based on the conventional EDM sparking phenomenon utilizing the widely accepted non-contact technique of material removal. However, WEDM utilizes a continuously travelling thin wire electrode made of copper, brass or tungsten of diameter 0.05-0.30 mm, which is capable of achieving very small corner radii. The wire is kept under tension using a mechanical tensioning device, reducing the tendency of producing inaccurate parts. During WEDM process, the material is eroded ahead of the wire and there is no direct contact between the workpiece and the wire. In addition, WEDM process is able to machine exotic and high strength and temperature resistive materials.

Other Details

Paper ID: IJSRDV7I50466
Published in: Volume : 7, Issue : 5
Publication Date: 01/08/2019
Page(s): 768-769

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