Decoding grinding dynamics using experimental investigations of wet and dry conditions on D3 tool steel

Abstract

The study reports an important research gap, as identified from literature surveys revealed, where minimal studies about dry cylindrical grinding processes which require excessive specific energy. The present investigation intends to explore the effect of grinding variables on D3 tool steel in two diverse settings: dry condition and ideas of wet condition. Experimental research has evaluated heat generation levels in dry workpiece grinding compared to the wet grinding process. The Taguchi method has contributed to deriving optimal parameters for achieving favorable tool steel responses during dry and wet grinding processes. Scanning electron microscope evaluation has shown the ground surface of D3 tool steel displays a well-maintained topography. Investigative outcomes demonstrate dry grinding can produce precise surface finishes while maintaining the integrity of workpiece surfaces. The method minimizes adverse effects on the working environment by reducing the need for grinding fluids. When performing dry grinding operations proper feed rates vary from 5 mm/min to 25 mm/min. A feed rate lower than 25 mm/min protects the workpiece surface from thermal harm. Dry grinding with optimal parameters achieved a surface roughness of 0.25 µm, comparable to wet grinding, whereas in the case of roundness error wet grinding yield least value of 0.001 mm and returning a maximum material removal rate of 154.95 g/min. Wet grinding operation requires a coolant flow rate between 5 l/min and 7.5 l/min for optimal results. Wet grinding operations using lower coolant levels or adopting dry grinding methods both allow companies to decrease chemical waste exposure to the working environment, which will reduce the environmental impact.