Please use this identifier to cite or link to this item: http://idr.nitk.ac.in/jspui/handle/123456789/10895
Title: Effect of wire diameter on surface integrity of wire electrical discharge machined Inconel 706 for gas turbine application
Authors: Sharma, P.
Chakradhar, D.
Narendranath, S.
Issue Date: 2016
Citation: Journal of Manufacturing Processes, 2016, Vol.24, , pp.170-178
Abstract: Inconel 706 superalloy has established itself in the field of gas turbine industry because of its easy fabricability combined with high mechanical strength. Due to its high stress rupture and tensile yield strength, conventional machining of this superalloy exhibits poor surface and low dimensional accuracy of the machined components. It is well known that most of the gas turbine components include complex shaped profile with high precision and hence, wire electrical discharge machining (WEDM) of Inconel 706 has been performed to achieve the feasibility in manufacturing of complex shaped components for gas turbine application. In the current investigation, the effect of wire diameter on WEDM performance characteristics such as cutting speed, surface roughness, surface topography, recast layer formation, microhardness, microstructural and metallurgical changes have been evaluated. It was investigated that smaller diameter wire is advantageous over the larger diameter wire since it improves productivity as well as surface quality of the machined components under the same settings of control parameters. In addition, smaller diameter wire has shown comparatively lower recast layer thickness, minimum hardness alteration and shorter manufacturing time. The XRD result has confirmed the presence of residual stress within WED machined component. 2016 The Society of Manufacturing Engineers
URI: http://idr.nitk.ac.in/jspui/handle/123456789/10895
Appears in Collections:1. Journal Articles

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