numerical control

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numerical control:

see computer-aided manufacturingcomputer-aided manufacturing
(CAM), a form of automation where computers communicate work instructions directly to the manufacturing machinery. The technology evolved from the numerically controlled machines of the 1950s, which were directed by a set of coded instructions
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numerical control

A category of automated machine tools, such as drills and lathes, that operate from instructions in a program. Numerical control (NC) machines are used in manufacturing tasks, such as milling, turning, punching and drilling. Both NC and CNC (computerized NC) are used to describe this category.

First-generation machines were hardwired to perform specific tasks or programmed in a very low-level machine language. Today, they are controlled by microprocessors and are programmed in high-level languages, such as APT and COMPACT II, which automatically generate the tool path (physical motions required to perform the operation).

The term was coined in the 1950s when the instructions to the tool were numeric codes. Just like the computer industry, symbolic languages were soon developed, but the original term remained.
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References in periodicals archive ?
The five most frequently adopted stand-alone (single) technologies are: computer-aided design; numerically controlled machines; programmable logic controllers; computers used for control on the factory floor and intercompany computer networks.
Section II traces the adoption of numerically controlled machines by U.S.
Numerically controlled machine tools are expected to become more widely used in the nonelectric heating equipment industry, either as replacements of obsolete equipment or through retrofitting of older equipment.
Many numerically controlled machines are equipped with automatic tool changers, so operators have to load several tools in the proper sequence.
A family of 8-bit PIC microcontrollers from Microchip feature a high level of peripheral integration, including configurable logic cells, complementary waveform generators, and numerically controlled oscillators, enabling functionality that was not possible before with low-pincount MCUs.
Some 64% of the value of all machines shipped was in numerically controlled equipment (cutting and forming), as opposed to non-NC.
The workshop was called to foster interaction between computer-aided design and manufacturing and computational geometry, furthering interaction over the past few years in such areas as numerically controlled machining, casting, and injection molding; rapid prototyping and layered manufacturing; metrology; and mechanism/linkage design.
The plant, which produces as many as 600 game cabinets a day, is also equipped with a Giben panel saw, numerically controlled routers from C.O.
Abstract: One of the most important factors which influences the dynamical behavior of the feed drives for numerically controlled machine tools is position loop gain or Kv-factor.
With 26 CNC (computer numerically controlled) milling machines in-house, the company also makes hydraulic cylinders for a manufacturer serving the agricultural sector.
The manufacturer of industrial robots and numerically controlled equipment did not provide year-on-year comparisons because it is the first time for Fanuc to report earnings results for the quarter.
They coordinate the functions of multiple PLCs, DCSs, and other automated devices, such as robots, computer numerically controlled (CNC) machines, material handling systems, and machine vision systems.

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