Study of cutting force in turning of AISI- 304 steel using mono and hybrid graphene nanoparticles enriched cutting fluid

Abstract

In manufacturing industries turning hard materials like AISI 304 steel is very challenging because of its low ability to heat dissipation. When these kinds of materials are perform machining, heat builds up on the tool tip, this raises the temperature of the tool tip which speeds up the rate of tool wear. So present investigation based on turning of hard material AISI-304 strain-free steel using Al-GrP based hybrid nanofluids and graphene-based nanofluids in vol. concentration 0.25, 0.5 & 0.75 vol% with the base oil sunflower oil. RSM with Box-Behnken was utilized in this experiment's design and response analysis. It was observed that the hybrid nanofluids made of Al-GrP (with nanoparticles fraction 80:20) and graphene had a reduced wettability, which affected the heat dissipation rate. This supports by the DSA test results of several nanofluids on tooltip surfaces. In Drop shape analyzer (DSA) results show that the contact angle at the tool insert in Al-GrP nanofluids is smaller than that of graphene-based nanofluids at the same concentration. During the experiment, it was discovered that Al-GrP and graphene have the shortest contact angles at 38.9° and 41.9° at 0.75 vol%.The use of (Al-GrP) hybrid nanofluids with MQL lowers surface finishing by 10%, as well as the force on cutting direction is 7.25 percent, respective compared to graphene-based nanofluids, and Graphene also demonstrates a high rate of tool wear, which forms a built-up edge on the tool during machining of AISI-304 strain-free steel.