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<strong>What is CNC Machining?</strong>
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CNC 101: The term CNC stands for 'computer numerical control', and the <a
href="https://www.onestop-solution.com/cnc-vertical-machining-center/">CNC Vertical
Machining Center</a> definition is that it is a subtractive manufacturing process that
typically employs computerized controls and machine tools to remove layers of material
from a stock piece—known as the blank or workpiece—and produces a custom-designed part.
This process is suitable for a wide range of materials, including metals, plastics, wood,
glass, foam, and composites, and finds application in a variety of industries, such as
large CNC machining, machining of parts and prototypes for telecommunications, and CNC
machining aerospace parts, which require tighter tolerances than other industries. Note
there is a difference between the CNC machining definition and the CNC machine
definition- one is a process and the other is a machine. A <a href="https://www.onestop-
solution.com/cnc-lathe/">CNC Lathe</a> (sometimes incorrectly referred to as a C and C
machine) is a programmable machine that is capable of autonomously performing the
operations of CNC machining.
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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. While subtractive processes
remove layers of material from the workpiece to produce custom shapes and designs,
additive processes assemble layers of material to produce the desired form and formative
processes deform and displace stock material into the desired shape. The automated nature
of CNC machining enables the production of high precision and high accuracy, simple parts
and cost-effectiveness when fulfilling one-off and medium-volume production runs.
However, while CNC machining demonstrates certain advantages over other manufacturing
processes, the degree of complexity and intricacy attainable for part design and the
cost-effectiveness of producing complex parts is limited.
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<strong>Overview of CNC Machining Process</strong>
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Evolving from the numerical control (NC) machining process which utilized punched
tape cards, CNC machining is a manufacturing process which utilizes computerized controls
to operate and manipulate machine and cutting tools to shape stock material—e.g., metal,
plastic, wood, foam, composite, etc.—into custom parts and designs. While the<a
href="https://www.onestop-solution.com/cnc-compound-machining-center/">CNC Compound
Machining Center</a> process offers various capabilities and operations, the fundamental
principles of the process remain largely the same throughout all of them. The basic CNC
machining process includes the following stages:
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Designing the CAD model
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Converting the CAD file to a CNC program
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Preparing the CNC machine
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Executing the machining operation
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