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Multiobjective Optimization of Chemically Assisted Magnetic Abrasive Finishing (MAF) on Inconel 625 Tubes Using

Gurpreet Singh¹, Harish Kumar¹, Harmesh Kumar Kansal²

¹Department of Mechanical Engineering, Chandigarh University, Mohali 140413, India.

|July 27, 2022

Summary

This summary is machine-generated.

Optimizing the chemically assisted MAF process for Inconel 625 tubes significantly enhances surface integrity. Genetic algorithms identified optimal parameters for improved surface finish and material removal in aerospace and automotive applications.

Keywords:

Inconel 625 SEM chemical-assisted MAF genetic algorithm material removal (MR)multiresponse optimization surface finish

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Area of Science:

Materials Science and Engineering
Manufacturing Processes
Surface Engineering

Background:

Increasing demand for high surface integrity in aerospace, marine, and automotive sectors.
Inconel alloy offers superior attributes suitable for surface integrity enhancement.
Process optimization is crucial for achieving precise surface finish and improved performance.

Purpose of the Study:

To optimize chemically assisted Magnetic Abrasive Finishing (MAF) process parameters for Inconel 625 tubes.
To enhance internal and external surface finish and material removal rates.
To identify optimal processing conditions using a genetic algorithm (GA) approach.

Main Methods:

Utilized a genetic algorithm (GA) for process parameter optimization.
Developed regression models for surface finish and material removal using Design Expert software.
Analyzed surface microstructure using Scanning Electron Microscopy (SEM).

Main Results:

ANOVA indicated processing time and abrasive size as key factors influencing surface finish and material removal.
Optimal parameters identified: 75 min processing time, 60 RPM rotational speed, 30% abrasive weight, 500 gm/lt chemical concentration, and 40 microns abrasive size.
Achieved significant improvements in internal surface finish (PIISF), external surface finish (PIESF), and material removal (MR).

Conclusions:

The optimized MAF process effectively improves the surface integrity of Inconel 625 tubes.
The GA approach provides a robust method for optimizing complex manufacturing processes.
Findings are applicable to industries requiring high-performance surface finishes on Inconel components.