Investigations into the improvement of the metal grinding process: application of a sub‐zero temperature cutting fluid

Abstract

Purpose -The purpose of this paper is to investigate the effects of liquid carbon dioxide (LCO 2 ) on grinding of stainless steel. Design/methodology/approach -A factorial experimental approach was used to compare the LCO 2 's performance against grinding under dry air and emulsion coolants. Findings -The experimental results have a great use to practitioners. It was found that under special conditions, LCO 2 proves to be an alternative coolant for grinding of temperature sensitive materials. Furthermore, grinding under LCO 2 conditions produced the lowest tangential force, while the normal forces were close to the values found under emulsion fluid environment. When compared to grinding under dry conditions, LCO 2 coolant was successful in reducing the work piece temperatures. LCO 2 and emulsion conditions inhibit work hardening by reducing material deformation at the grinding zone. Originality/value -The paper shows that sub-zero temperature coolants have the ability to bring about lower grinding temperatures than what is typically achieved under conventional fluids.

Influence of nanofluid application on wheel wear, coefficient of friction and redeposition phenomenon in surface grinding of Ti-6Al-4V

“…Further research still has to be done with the applications of nanofluids in difficult to machine materials such as ceramics, aerospace alloys and so on to achieve the combined effect of good thermal and tribological properties of nanofluids. 15,[21][22][23][24] Nevertheless, there have been many findings and improvements that identified the characteristics of nanofluids and researchers a step closer to developing methods that are more efficient with the nanofluid application.…”