Numerical control processing refers to processing in nc machining tools. Index of the CNC control machine tool controlled by nc programming language, usually in the form of G code. Nc machining G code die casting parts language told CNC machine tool USES the cartesian coordinates, And controls the tool feed rate and spindle speed, and the tool changer, coolant, etc.
Nc machining relative manual processing has great advantages, such as CNC machining to produce parts very precise and repeatability. Nc machining can be Production manual processing can't do with complex shape parts. Nc machining technology has been widely adopted, most of the machining with CNC processing ability, the typical machining workshop, the most common way of nc machining with CNC milling, number Charged with car and CNC EDM wire cutting (wedm).
For nc milling tool is called numerical control Investment casting parts milling machine or numerical control machining center. To carry on the lathe of numerical control turning processing is called numerical control lathe work center. Can manual programming nc machining G code, but usually machining using CAM (computer-aided manufacturing) software Dynamic reading CAD (computer-aided design) files and generate G code program, to control the CNC machine CNC numerical control processing has the following advantages:
Number of (1) a substantial reduction in tooling, processing complicated shape parts does not need complex tooling. If you want to change the shape and size of the parts, only need to modify the parts processing procedures, apply to new product development and modification.
(2) stable machining quality, high machining accuracy, high repeat precision, aircraft to meet the demand of the processing.
(3) many varieties, small batch production situations production efficiency is high, can reduce the production preparation, machine tool adjustment and process the test of time, and due to the use of die casting parts optimal cutting quantity and reduces the cutting time.
Conventional methods can be processed (4) to the complexity of surface processing, can even machining parts of some cannot be observed.
Nc machine tools are the shortcomings of the equipment is expensive, require maintenance personnel with high level.