Subtractive manufacturing is a process where material is removed from a solid block, or the “workpiece,” to form a final product, contrasting with additive processes like 3D printing that build objects layer by layer. This method includes a variety of techniques such as machining, where tools like drills and lathes cut away material to achieve the desired shape; laser cutting, which uses a high-powered laser beam to precisely melt, burn, or vaporize material; and grinding, a process that uses an abrasive wheel to smooth or alter the surface of the workpiece. Each technique offers unique advantages in terms of precision, finish quality, and suitability for different materials, making subtractive manufacturing a versatile choice for creating detailed and complex parts in industries ranging from aerospace to consumer electronics.