numerical control

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Related to NC machining: Computer numeric control

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.
References in periodicals archive ?
NC machining, in fact, was the manufacturing industry standard until CNC fabrication came along in the late 1960s.
NC machining directly from a solid model with no translation provides exceptional accuracy, resulting in little or no benchwork.
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net can meet virtually every need for precision CNC machining, fabrication, retread molds, CNC & NC machining, die work, plastic, steel & aluminum castings, prototypes, innovative design, engineering, reverse engineering, tooling, sheet metal work and a wide range of other custom manufacturing services.
But low-volume patterns can be economically machined from a wax that was first developed for use in proofing NC machining programs.
The company's manufacturing capabilities include complete turnkey electronic, mechanical, electromechanical, and final assembly and test services, including surface mount technology (SMT) and plated through-hole (PTH) printed circuit board assembly services, traditional and NC machining services, and precision welding.
net, the website includes offerings for CNC & NC machining, Swiss-style machining, lathe work, fabrication, general machine work & repair, gearing, welding, sand blasting, stress relieving, coating, anodizing, metal & industrial finishing, light assembly, casting manufacturing, plastic & steel fabricating, CAD/CAM design, material consultation and other custom manufacturing services.
This landmark exhibition will reveal how STEP (Standard for Product Data Exchange) is growing beyond CAD (Computer-aided Design) into CAM (Computer- aided Manufacturing) and NC machining.
Market trends and observations by CIMdata including trends in the NC software market, software programming, NC machining operations, and software marketing and sales.
Other improvements include NC machining and human task simulation improvements.