The acronym CNC stands for Computer(ized) Numerical(ly) Control(led), and refers specifically to the computer control of machine tools for the purpose of (repeatedly) manufacturing complex parts in metal as well as other materials, using a program written in a notation called G-code.CNC was developed in the late 1940s and early 1950s by the MIT Servomechanisms Laboratory .
1 Tools with CNC variants
- Drills
- EDMs
- Lathes
- Milling machines
- Wood routerA wood CNC Router is similar to a metal CNC mill with the following differences: The wood router typically spins faster — 18,000 RPM It typically uses smaller tools — max shank size 20 or at most 25mm. It typically uses smaller toolholders iso-30 or the ts
- Sheetmetal work s
2 Description
The introduction of CNC machines radically changed the manufacturing industry. Curves were as easy to cut as straight lines, complex 3-D structures were relatively easy to produce, and the number of machining steps that required human action went way down.
In a production environment, all of these machines may be combined into one station to allow the continuous creation of a part involving several operations. CNC machines are nowadays driven directly from files created by CADThis article is about computer-aided design. For other meanings, see CAD (disambiguation). Computer-aided design CAD is the use of a wide range of computer-based tools that assist engineers in their design activities. It involves both software and special software packages, so that an assembly or part can go from design to production without any intermediate paper drawing work being required. In one sense, CNC machines may be said to represent special industrial robotAn industrial robot is officially defined by ISO (Standard 8373:1994, Manipulating Industrial Robots Vocabulary) as an automatically controlled, reprogrammable, multipurpose manipulator programmable in three or more axes''. The field of industrial robotic systems, as they are programmable to perform any kind of machining operation (within certain physical limits, like other robotic systems).
CNC machines were relatively briefly preceded by the less advanced NC, or Numerical(ly) Control(led), machines.
3 External link
Embedded systems
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