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Experimental investigations on abrasive water jet machining of nickel-based superalloy

Authors
  • Veerappan, G.1
  • Ravichandran, M.2
  • 1 Vickram College of Engineering, Department of Mechanical Engineering, Sivagangai, Tamil Nadu, 630 561, India , Sivagangai (India)
  • 2 K.Ramakrishnan College of Engineering, Department of Mechanical Engineering, Tiruchirapalli, Tamil Nadu, 621 112, India , Tiruchirapalli (India)
Type
Published Article
Journal
Journal of the Brazilian Society of Mechanical Sciences and Engineering
Publisher
Springer Berlin Heidelberg
Publication Date
Nov 01, 2019
Volume
41
Issue
11
Identifiers
DOI: 10.1007/s40430-019-2031-1
Source
Springer Nature
Keywords
License
Yellow

Abstract

Waspaloy is often used in aviation combustion chamber at extreme environments. Waspaloy is also a nickel-based superalloy with exceptional strength properties at a temperature of 980 °C. In this experimental investigation, waspaloy is used to analyse the kerf angle (KA), surface roughness (SR) and material removal rate (MRR) during abrasive water jet machining. The effect of various parameters such as traverse speed, abrasive flow rate, water pressure and stand-off distance on KA, MRR and SR was discussed. The striation formation was analysed for different set of process parameters. The striations were also analysed using atomic force microscopy. An attempt was done to relate the jet impinging angle and nature of striation formation. It was found that the increase in declination angle decreases the formation of striation during water jet process of waspaloy.

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