Mechanical finishes refer to surface treatments applied to materials, typically metals, to enhance their appearance and performance. These processes include methods like grinding, polishing, and brushing, which remove imperfections and create a smoother surface. Mechanical finishes can improve corrosion resistance, reduce friction, and prepare surfaces for further treatments like painting or coating. These finishes are commonly used in various industries, including automotive, aerospace, and manufacturing. The choice of mechanical finish depends on the desired properties of the final product, such as aesthetics, durability, and functionality. Properly applied mechanical finishes can significantly extend the lifespan of components.