Process Parameters Optimization of Fiber Laser Cladded SS316 Surface Using RSM Analysis

Year : 2025 | Volume : 13 | Special Issue 05 | Page : 186 201
    By

    Vikas Kumar,

  • Ravi Shankar Rai,

  • Rajeev Kumar,

  1. Assistant Professor, Department of Automation and Robotics Engineering, Sandip Institute of Technology and Research Centre, Nashik, Maharashtra, India
  2. Assistant Professor, Department of Automation and Robotics Engineering, Sandip Institute of Technology and Research Centre, Nashik, Maharashtra, India
  3. Assistant Professor, Department of Mechanical Engineering, Sandip Institute of Technology and Research Centre, Nashik, Maharashtra, India

Abstract

This paper presents the laser cladding experiments on the surface of SS316 to study the variations in process parameters, such as scanning speed (100-250 mm/min), laser power (50-250 W), and % volume of B4C (5- 25%) + SS316 powder on the mechanical, metallurgical and tribological performance of the modified surface. A central composite design (CCD) was used to develop the response surface methodology (RSM) to design the experiments and for analysis of the results. To correlate the input process parameters with the responses, regression equations were formulated. Field Emission Scanning Electron Microscopy (FESEM) observation indicated the uniform distribution of B4C particles with the absence of fine gaps at the interfaces of SS316 and B4C particles. X-ray Diffraction analysis revealed that different intermetallic compounds, such FEC, B4C, B2O3, FeNi, Mo2B, NiMn, FeB, and CrC, were formed during the laser interaction with the surface resulting from chemical reactions. The optimum values of different responses, such as average micro-hardness, coefficient of friction, and clad layer thickness, were found to be 322.05HV0.2 (maximum), 0.324(minimum), and 0.376 mm (maximum), respectively, for the predicted input process parameters, namely scanning speed: 172.72 mm/min; laser power: 200 W; and, the composition of B4C: 20% v/v.

Keywords: Fiber laser cladding; SS316; B4C; microstructure; microhardness; RSM

[This article belongs to Special Issue under section in Journal of Polymer and Composites (jopc)]

How to cite this article:
Vikas Kumar, Ravi Shankar Rai, Rajeev Kumar. Process Parameters Optimization of Fiber Laser Cladded SS316 Surface Using RSM Analysis. Journal of Polymer and Composites. 2025; 13(05):186-201.
How to cite this URL:
Vikas Kumar, Ravi Shankar Rai, Rajeev Kumar. Process Parameters Optimization of Fiber Laser Cladded SS316 Surface Using RSM Analysis. Journal of Polymer and Composites. 2025; 13(05):186-201. Available from: https://journals.stmjournals.com/jopc/article=2025/view=216604


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Special Issue Subscription Original Research
Volume 13
Special Issue 05
Received 16/01/2025
Accepted 18/03/2025
Published 10/07/2025
Publication Time 175 Days
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