As a machining method, CNC has been around for a while, but many in the industry are still not familiar with its true definition and benefits. This is primarily due to the initial equipment cost, but as the cost of these machines approach the cost of established conventional machines, the interest in this equipment is growing. Machines that are controlled by a computer are an advancement of machines that used cards in their operation. There are many different kinds of these machines with different capabilities, but the process of machining is very similar between them.
- CNC machining means computer numerical control and its a process that uses computer controls and machine tools to remove layers of material.
- CNC machining is great for many different types of materials including metal, wood, foam, plastic and composites.
- Subtractive manufacturing processes are presented instead of additive manufacturing processes which include 3D printing of liquid injection molding.
“Subtractive manufacturing processes, such as CNC machining, are often presented in contrast to additive manufacturing processes, such as 3D printing, or formative manufacturing processes, such as liquid injection molding.”