Computer Numerical controlled machines are very common when it comes to precision Machining. The term is often abbreviated to CNC and means that the machine is controlled by a computer. Precision machining is the act of creating detailed tools that are required to make parts for machines and technology. CNC machines are used to precision machine sophisticated tools that create complicated parts for modern day technology. CNCs are found in many different places these days including performing work as lathes, milling machines, laser cutters, abrasive jet cutters, punch presses, press brakes, and other industrial tools. In the past precision machines were built on a bespoke basis to suit the exact requirements of the tool builder customer. However today because the machine can perform many different operations they are built for stock or for later sale. A CNC machine costs approximately 50, 000 for a vertical centre and 5million for a flexible machine system for engine blocks. Precision Machining and quality control Precision machining is all about accuracy, the tools they are making needs to be perfect in shape, size, and dimensions down to the millionth of a cm. The quality control within a machining centre is built in from design through to delivery and set up. Not only is the precision machine highly quality controlled but the training and instruction to the operator is in-depth and controlled as well. The misuse of a precision machine can lead to an unintentional collision of work with the tool which leads to a crash, machine crashes can result in tool damage or machine failure. All CNCs are shipped and delivered with special handling from the manufacturer and are set up by qualified and fully trained technicians. The original correction factors are recorded for later reference and complete programming, operation, and maintenance manuals are provided. CNCs have changed the precision machining industry dramatically and the future of CNC machines is exploding. Source: hicow.com
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http://www.hicow.com/numerical-control/machining/business-2241786.html