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CNC Milling Machine: Bridgeport, Spectralight, Aciera And Fryer

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Published: November 30, 2006

Halfway through the 20th century, an advancement came along revolutionizing the manufacturing world. The CNC Milling Machine, developed by John T. Parsons and MIT Servomechanisms Laboratory, expedited and enhanced the machine tool process used in milling machines.

Its acronym standing for Computer Numerical Control, CNC milling machines refers to a kind of milling machine possessing an internal computer drive which reads instructions to drive the machine tool – used for the overall process of shaping metal parts.

Prior to the development of the CNC milling machine, an operator had to manually move a rotating cutter and the table, which held the object being worked on along a linear axis. CNC technology automated this process and the effects of this automation were incredibly useful; fabricating curves onto metal objects became significantly easier, creating complex three-dimensional structures suddenly was a reality rather than a fantasy, and the element of human error was drastically reduced. Rather than laboring over every step of the process, CNC milling machine operators could focus on additional tasks. Thus, not only did versatility and dependability rise with this innovation, but productivity enjoyed an all-time high.

When talking about milling machines, the conversation will not last long without mention of one particular company. Bridgeport Machines, a named after the Connecticut town where the company finds its roots, dominated the machine tool industry since its introduction in 1938. The company revolutionized the market with the introduction of the Series I Standard, a milling machine equipped with a revolving turret capable of moving the head from one end of the table to the other. This improvement vastly enhanced versatility and productivity, and its economical price tag made the machines a budget-conscious addition for any machine shop.

Fabulous fondue, fresh dairy products, skiing and beautiful scenery are not the only things Switzerland has made famous to the outside world. The Swiss-produced Aciera Mills are among the finest of its class of CNC milling machines. One of their known models, the F1, is a small milling machine popular with watch makers and other micro mechanics.

Fryer Machine Systems, based in Patterson, N.Y., found success in 1994 with its MB-14 bed type mill. This three-axis mill—as opposed to the traditional linear double-axis models—was developed with parts accessible for full manual use or complete automation with CNC milling machines. This model remains popular in milling machines today. The Spectralight tabletop CNC Mill is another three-axis milling machine which achieved a new level of success using CNC technology.




Sources:
Aciera Milling Machines. 29 November 2006. <http://www.anglo-swiss-tools.co.uk/AcieraMills .html.>
Bridgeport online. 2006. 29 November 2006. <http://www.bpt.com/.>
CNC. Wikipedia online encyclopedia. 29 November 2006. 29 November 2006. <http://en.wikipedia.org/wiki/CNC.>
CNC Machine Tool. 29 November 2006. <http://www.madehow.com/Volume-2/CNC-Machine-To ol.html.>
Fryer Machine Systems. 2006. 29 November 2006. <http://www.fryermachine.com/.>
MET 361 – Introduction to CNC Machining. Spring 2006. Colorado State University. 29 November 2006.
<http://ceeps.colostate-pueblo.edu/MET/MET361 /Spring06/PlateCNC/plateSMill.htm.>
Milling machine. Wikipedia online encyclopedia. 10 November 2006. 29 November 2006. <http://en.wikipedia.org/wiki/Milling_machine.& gt;
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