Manuscript Title:

RESPONSE SURFACE ANALYSIS AND OPTIMIZATION OF LASER PARAMETERS FOR MINIMUM WEAR RATE IN TUNGSTEN CARBIDE HARDFACED SURFACES

Author:

S.VIMALRAJ, Dr.R.VARAHAMOORTHI, Dr.C.SUNDARRAJ

DOI Number:

DOI:10.17605/OSF.IO/A6GR9

Published : 2021-12-10

About the author(s)

1. S.VIMALRAJ - Department of manufacturing engineering, Annamalaiuniversity, Tamilnadu, India.
2. Dr.R.VARAHAMOORTHI - Department of manufacturing engineering, Annamalaiuniversity, Tamilnadu, India.
3. Dr.C.SUNDARRAJ - Avc college of engineering, Mannampandal, Mayiladuthurai.

Full Text : PDF

Abstract

Process parameters are critical for laser hardfacing quality; nevertheless, these values are typicallyfound by trial and error, which incurs significant time and human expenses. In this study, the parameters of hardfaced surfaces were optimized to reduce the wear rate of tungsten carbide (WC)hardfaced on 316 L stainless steel (SS). The result of procedure parameters on wear rate is addressedin order to get the best possible condition. The trials were carried out by a response Surface methodology (RSM) based central composite design (CCD) with five levels and four factors. RSM was used to create the empirical relationship. The interplay effects of laser hardfaced surface input process factors on Wear Rate are addressed. The influencing parameter and the optimal process parameter for wear rate are identified. The laser power of 2.51 kW, travel speed 1066.96 mm/min,defocusing distance 50.00 mm, and powder feed rate 25.76 g/min were determined in this study toreach the minimal wear rate of 0.0062 mg. The provided parameter settings are shown to be beneficial in our results.


Keywords

Optimization,RSM,TungstenCarbide,LaserHardfacing,AISI316LSS