👉 An impressed fluid, also known as an impressed die or die-stamping fluid, is a specialized lubricant and press-fluid mixture used in the die-stamping process of manufacturing. This fluid is typically a combination of water, oil, and additives designed to reduce friction and wear between the die and the material being stamped. When high-pressure fluid is forced through a narrow channel (impressed die) onto the workpiece, it creates a thin, uniform film that acts as a lubricant, preventing direct metal-to-metal contact and minimizing heat generation. This results in smoother, more precise stamping operations with extended tool life and improved surface finish of the stamped parts.