CNC Machining Process Analysis
Introduction
Computer numerical control (CNC) machining is a manufacturing process that requires specialized equipment and competent personnel to dictate the movements of the machine. CNC machining is used in a wide array of industrial applications, such as making tools, creating components and even architectural structures. CNC machining consists of a variety of processes and it’s important to understand each of these, in order to ensure a successful machining process. This paper provides an overview of the CNC machining process and details its main components.
CNC Machining Process
CNC machining is a computer-controlled subtractive process used for material removal. It is commonly used for machining metal components and parts, as well as plastic and wood. The process consists of data input in the form of a program, which the CNC machine interprets and then proceeds to execute. There are a number of different types of CNC machines that can be used for varied applications.
CNC machining is comprised of several stages. It begins with the development of a digital program containing instructions, which is then fed into the CNC machine. This program is typically developed using a Computer Aided Design (CAD) program such as Autodesk Fusion 360. It’s then transferred to the machine so that it can interpret its instructions.
Once the program has been sent to the CNC machine, it is ready to begin the production process. The machine then moves the tooling to where each specific cutting operation is required, based on the program. This is known as toolpath generation.
The tooling used in CNC machining is typically carbide, as it is capable of withstanding high cutting temperatures. This tooling is manipulated by the machine to cut the relevant material. As the material is cut, the heat produced is dissipated using coolant or cutting fluids.
The last step in CNC machining is known as gaging. This stage involves the use of an inspection system to ensure that the part produced meets the desired dimensional requirements. This is typically done using a Coordinate Measuring Machine (CMM), which is used to check for accuracy against the program.
Conclusion
In conclusion, CNC machining is an effective process used to produce a wide range of components and parts. The process requires a well-developed program, tooling and machining operations, as well as an effective gaging operation. CNC machining provides a cost-effective, repeatable and efficient machining process when done correctly.
