We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
INVESTIGATION OF SURFACE CHARACTERISTICS IN PRECISION HOLE MACHINING OF INCONEL-625 USING ABRASIVE AQUA JET DRILLING.
- Authors
VIJAYA KUMAR, R.; SRIRANGARAJALU, N.; SANTHANAKUMAR, M.; ADALARASAN, R.
- Abstract
Inconel-625 is a high-performance nickel-based superalloy which offers exceptional properties such as extensive resistance to corrosion, high strength-to-weight ratio, hardness, and impressive heat tolerance. Machining precise holes with required dimensional accuracy is challenging in Inconel-625 using conventional drilling processes. The investigation aims to improve the quality characteristics of hole machined on Inconel-625 by using the abrasive aqua jet drilling (AAJD) process. The influence of jet pressure ( J P ), table feed ( T F ), mass flow rate ( M FR ) and gap distance ( G D ) on the erosion rate ( E R ), surface roughness ( R a ), circularity error (CIerror) and striation zone ( S Z N ) are investigated. The weighted principal component analysis (WPCA)-based response surface methodology (WPC-RSM) is employed to analyze and optimize process parameters. The optimal parameter settings ( J P -300 MPa, G D -1.5 mm, T F -64 mm/min, M FR -0.55 kg/min) are observed to produce substantial improvement in response. Comparing initial and optimal conditions, the surface roughness ( R a ) is decreased by 10.15% from 3.25 μ m to 2.92 μ m. The CIerror and S Z N are also reduced by 38.02% and 12.74%, respectively. The erosion rate ( E R ) is improved by 8.79% with the optimal settings. J P is found to be the most influential parameter, followed by M FR . Scanning electron microscopy (SEM) pictures and 3D roughness plots are used in the surface topography analysis.
- Subjects
ABRASIVES; RESPONSE surfaces (Statistics); SURFACE topography; PRINCIPAL components analysis; MACHINING; INCONEL; ELECTROCHEMICAL cutting; ENGINEERED wood
- Publication
Surface Review & Letters, 2024, Vol 31, Issue 8, p1
- ISSN
0218-625X
- Publication type
Article
- DOI
10.1142/S0218625X24500665