Investigation of surface grinding on Inconel under distinct cooling conditions

ABSTRACT

Nickel-based alloys are used in marine and aerospace applications due to their mechanical strength and chemical stability at high temperatures. Inconel 800 resists high-temperature corrosion such oxidation and carburization. Inconel 800 is utilised in deaerators, heaters, valves, heat exchangers, pumps, and more. Grinding responses was investigated since these applications demand a clean surface finish. In this study, surface grinding was performed on Inconel 800 under three different cooling conditions: dry, wet, and Nano-MQL. Wheel Speed(v_s), feed(f), and Depth of cut(a_e) were taken as input parameters, while Surface roughness(r_a), the microhardness of the Workpiece, and temperature were taken as output parameters.  .NMQL circumstances yielded 0.42 μm surface finish and 60–62°C cutting temperature. The microhardness values on the machined surface under different cooling conditions reflect residual stress, which depends on the machining zone temperature. The material's surface residual stresses were tested to determine how grinding affected its mechanical qualities and performance.

KEYWORDS:

• Surface grinding
• N-MQL
• surface finish
• micro hardness
• residual stress
• Al2o3

Acknowledgments

The experimental apparatus used in the research was provided by St. Joseph’s College of Engineering, which the authors would like to thank.

Disclosure statement

No potential conflict of interest was reported by the authors.