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All You Need To Know About CNC Machining

by mtelec

You must have a million questions. What is CNC Machining? What is CNC Machining Capabilities? You do not need to worry; we will discuss all those in this article. In the modern manufacturing industry, CNC machining refers to computer numerical control. CNC machining is defined as subtractive manufacturing, a term that means to create three-dimension objects by chipping away at a solid block either manually or using a machine.

Note, CNC machining uses computerized controls and machine tools to strip layers from a blank or workpiece to create a custom design. One of the advantages of this manufacturing process is that you can work with any material, including plastics, wood, metal, glass, and foam. 

CNC is applicable in many industries, including large CNC machining services and CNC machining of aerospace parts. CNC usage evolved from numerical control machining, which utilized punched tape cards, an analog form of data storage, and it takes place through the following stages:

1.Creating a computer-aided design

The CNC process commerces with the preparation of a solid 3D part or 2D vector with the help of CAD design. This is done by the manufacturing company or outsourced. Computer-aided design software allows manufacturers to produce a working model program using the provided dimensions and geometric specifications.

2.Converting the computer-aided design file into a CNC program

Using a CNC compatible file format like STEP or IGES, the configured CAD design runs through a computer-aided manufacturing software to generate the program used controlling CNC aided machines. The program’s code is used to manipulate/command the integrated machines to make a custom-designed product or a specific product part.

CNC machines use a variety of programming languages, including G-code and M-code. Geometric code (G-code) is the most commonly used programming language. The program is designed to control when, where, and how the machine tools move over the target mold.

3.Preparing the CNC machine

Setting up the CNC machine is an essential step in CNC manufacturing. This step involves the engineers preparing the CNC machine for operation. The workpiece is placed in the right position, as well as the working tools. Once the CNC machine is configured, the CNC program runs through the machine.

4.Executing the machining operation

The CNC program acts as the instructor for the CNC machine, telling it how to cut, when to cut, and how long. The program also instructs the CNC machine when to stop and when to start up again. Since the CNC machine is computer-integrated, the process is seamless, and the attending engineer can keep a close eye on the process to spot any mistakes that might be in the program and correct them.

The process is fast and accurate. The resulting part or product does not have any marks that would have occurred if the cutting is done manually.

In conclusion

Computer Numerical Control machining can work on various materials, including glass, wood, foam, composite, glass, plastic, and metal, giving the client a variety of materials to use in designing. CNC machining is also incredibly fast and precise. The manufacturing industry benefits exponentially form CNC manufacturing as it is perfect for both small scale and large scale production of parts and products.

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