What is the function of kerosene in an EDM machining process?

In the EDM (Electrical Discharge Machining) process, kerosene functions primarily as a dielectric fluid. This is critical because, in EDM, a spark generates between the electrode and the workpiece, resulting in localized heating that removes material. The dielectric fluid plays a significant role in this process by serving multiple purposes: it acts as an insulator to prevent continuous sparking, allows for the controlled spark discharge necessary for material removal, and helps to flush away the eroded material (or "chips") from the machining area.

By using kerosene as the dielectric fluid, the EDM process can achieve efficient machining with better surface finishes and tighter tolerances. The properties of kerosene, such as its relatively low viscosity, help maintain optimal conditions for electrical discharge while providing an effective medium for cooling and flushing away debris produced during the operation.

Other options, while related to machining, do not accurately describe the role of kerosene in EDM. For instance, while cooling the workpiece and lubricating might be relevant in other machining processes, they are not the primary functions of kerosene in EDM. Additionally, the removal of chips is indeed important, but that duty is more a function of the overall fluid dynamics in the machine rather than the