Numerical control processing comes from processing with numerical handle processing tools. CNC index-controlled device tools are programmed in addition to controlled by CNC machining 'languages', usually G codes. The CNC machining F code language tells the Cartesian position coordinates with the machining tool of your CNC machine tool, and controls the supply speed and spindle speed in the tool, as well as the tool changer, coolant along with functions. Compared with guide book machining, CNC machining includes great advantages. For model, the parts produced by CNC machining are extremely accurate and repeatable; CNC machining can manufacture parts with complex shapes that can't be completed by manual machining. Numerical control machining technology has become widely promoted. Most machining training courses have CNC machining features. The most common CNC machining techniques in typical machining courses are CNC milling, CNC rotating, and CNC EDM insert cutting (electric discharge line cutting).
The tools for CNC milling are called CNC milling machines or maybe CNC machining centers. The lathe that functions numerical control turning processing is termed a numerical control rotating center. The CNC machining G code is often programmed manually, but usually the machining class uses CAM (computer made it simpler for manufacturing) software to immediately read the CAD (computer assisted design) file and crank out the G code program to control the CNC machine instrument
CNC machining has the following advantages:
①The number connected with tooling is greatly lowered, and complex tooling is not required for processing areas with complex shapes. If you wish to change the shape and size from the part, you only must modify the part canning program, which is worthy of new product development plus modification.
②The processing quality is stable, the running precision is high, along with the repeat accuracy is substantial, which is suitable to the processing requirements of the actual aircraft.
③The production efficiency is higher individual multi-variety and small order production, which can reduce any time of production preparation, machines tool adjustment and method inspection, and reduce the cutting time because of the use of the finest cutting amount.
④It can process complex profiles which might be difficult to process by means of conventional methods, and actually process some unobservable canning parts.
The disadvantage of CNC machining is the cost of machine applications is expensive and requires a superior level of maintenance employee.
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