CNC machining is a production process that allows for complete automation of the manufacturing process using computer controlled equipment. CNC stands for computer numerical control and has been in use since 1950s. It is used to cut, carve and shape different types of materials.
There are five main types of CNC machines: milling, turning, grinding, laser machining and routing
Milling
The mill is a machine tool that can be used to create holes, slots, threads and other features into metal parts. The mill is similar to a pillar drill but with the added ability to move the table and cutter axis automatically via a program.
Mill mills are often referred to as vertical machining centers (VMCs) because they are commonly placed vertically on towers above the working table. Though horizontal milling machines also exist, but are less common.
Turning
Turning is a form of machining that uses a cutter to remove material from the workpiece. The workpiece rotates on a single axis, while the tool rotates on two axes. This allows the tool to make a profile or surface that is curved in one direction while remaining flat in another.
Turning is similar to boring, except that turning creates an external shape with its conical cutting edge removed from the workpiece at all times, whereas boring creates an internal hole with its conical cutting edge always engaged with and rotating within the material of interest.
Turning has been used since ancient times and was known as “turning” then as now; however, it did not have such great importance until recently when machining became more precise due to new technologies such as CNC machines (Computer Numerical Control).
Grinding
Grinding is a machining process that uses an abrasive wheel to remove material. It can be used for finishing parts, removing burrs and smoothing surfaces. In order to grind effectively, a grinding machine must be configured with the proper tooling and workholding fixtures that ensure the part remains in contact with the abrasive surface while it is being machined.
Laser Machining and Other Machining Technology
Laser machining is a process that uses a laser as a heat source to melt and cut materials. Laser-based technologies are used in both small and large scale manufacturing processes. In fact, you will see them at your local grocery store when you buy food packaged in bags with laser-cut holes that are designed to allow air pressure to escape while keeping the bag sealed shut.
Laser machining can be used to cut through a variety of materials, including metal, plastic, rubber, glass and more
Routing
Routing is the process of cutting a groove, channel or shape into a material using a router. Routing typically involves using a small tool called a router. The shape of the material will determine what type of router bit is needed for routing to take place. Common shapes include grooves for making flush joints between two surfaces; channels for separating different types of materials; as well as complex profiles that may be used on woodworking projects.
CNC machining is a production process that allows for complete automation of the manufacturing process using computer controlled equipment.
In the past, the idea of computer-controlled machines was a science fiction fantasy. Today, however, CNC Machining is a reality and has revolutionized the manufacturing industry by automating many manual processes.
CNC Machining (Computer Numeric Control) is an automated machining process that uses Computer Aided Design (CAD) software to create instructions for a machine tool to follow. The instructions are then converted into code that can be understood by the machine’s controller and executed automatically to produce parts with repeatable accuracy and precision.
Unlike manually controlled equipment which requires operators or specialized personnel to set up each part and tool path on their own, CNC machines use numerical control systems that allow for automatic programming of motion paths as well as other functions like loading/unloading tools and changing feed rates.
CNC machining is a production process that allows for complete automation of the manufacturing process using computer controlled equipment.
The machine tool industry has been around for over 100 years, but it wasn’t until the 1990s that these machines were able to be integrated into a company’s workflow with software programs like AutoCAD and SolidWorks. Nowadays, many different industries use CNC machines including aerospace, medical devices and even toys!
