Milling is a common manufacturing process that involves removing material from a workpiece using a rotary cutter. The rotary cutter is typically a multi-point cutting tool that rotates at high speed and moves along the surface of the workpiece, cutting away material to create the desired shape or surface.
The milling process can be performed using a variety of machines, such as milling machines, routers, and machining centers, which vary in size, complexity and capabilities. These machines can be operated manually, using computer numerical control (CNC), or with other automated systems.
In addition, the milling process can produce a wide range of shapes and features, including flat surfaces, slots, holes, threads, and complex three-dimensional contours. It is commonly used in the production of metal parts; however, it can also be used to mill materials such as graphite, plastics, wood, and composites.
Milling Machining Types
There are several types of milling machining, each of which is used for specific applications. Here are some of the most common types of milling:
- Face Milling: In face milling, the cutting tool rotates perpendicular to the surface of the workpiece and removes material from the surface to create a flat surface.
- Peripheral Milling: In peripheral milling, the cutting tool rotates along the periphery of the workpiece, removing material to create a cylindrical or flat surface.
- End Milling: In end milling, the cutting tool rotates perpendicular to the surface of the workpiece, removing material from the side of the workpiece to create a slot or cavity.
- Drilling: In drilling, the cutting tool rotates and moves axially into the workpiece to create a hole.
- Chamfer Milling: In chamfer milling, the cutting tool is angled to create a beveled edge or chamfer on the workpiece.
- Thread Milling: In thread milling, the cutting tool follows a helical path to create threads on the workpiece.
- Gear Milling: In gear milling, the cutting tool is shaped like the gear being produced and rotates to cut the gear teeth into the workpiece.
These are just a few examples of the many types of milling machining available.
Overall, milling is a very versatile manufacturing process. The process can create a wide range of complex and precise parts for various industries. Some of these industries include aerospace, automotive, medical devices, electronics.