Materials that can be CNC milled

Milling is a very general process that is suitable for many materials. When selecting materials for CNC milling, many factors should be considered, such as cost and material characteristics. Material properties include tensile strength, heat resistance, hardness, chemical resistance, and shear strength.
Similarly, the selected material determines many aspects of the milling process, including part design, cutting tools, cutting speed and feed, cutting fluid, and cutting depth. The following are some commonly used materials for CNC milling:
metal
Metals and metal alloys are the most commonly used grinding materials. This is because they are widely used in multiple industries. The commonly ground metals are aluminum and its alloys, various types of steel, brass, copper, titanium, and bronze.
plastic
Next is plastic, as it is very popular in the paper industry. They also have expected properties and are widely used. Polymers such as ABS, PEEK, polycarbonate, and nylon are commonly used in CNC milling of plastics.
Other materials
Wood, glass, and elastomers are also materials suitable for CNC milling.