CNC Machining

- Jan 30, 2018-

         CNC is also called a computer gong, CNCCH or CNC machine tool is actually a Hong Kong side of the name, and later spread to the mainland PRD, in fact, CNC milling machine, in Canton, Jiangsu, Zhejiang and Shanghai called "CNC Machining Center".

         General CNC machining usually refers to the precision machining, CNC lathe, CNC milling machine, CNC milling machine, etc.

CNC machining route to determine 

        CNC lathe feed machining route refers to the tool from the knife point (or machine fixed origin) from the start, until the return to this point and the end of the machining process by the path, including the cutting path and cut into the tool, cut out and other non-cutting Empty travel path. Finishing the feed route is basically along the order of the parts contour, therefore, to determine the feeding route is to determine the focus of roughing and empty travel of the feeding route. In CNC lathe processing, the processing route to determine the general follow the following principles. ① should be able to ensure the accuracy of the workpiece and the surface roughness. ② the shortest route to processing, reducing empty travel time and improve processing efficiency. ③ try to simplify the numerical calculation of the workload, simplifying the processing procedures. ④ For some reusable programs, subprograms should be used.

CNC advantages and disadvantages 

         CNC machining has the following advantages: ① a substantial reduction in the number of tooling, machining complex parts do not require complex tooling. To change the shape and size of parts, only need to modify the parts processing procedures, for new product development and modification. ② processing stable quality, high precision, high repetition accuracy, adapt to the aircraft processing requirements. ③ multi-species, small batch production under higher production efficiency, reduce production preparation, machine adjustment and process inspection time, and because of the use of the best cutting and reduce the cutting time. ④ Machinable conventional methods difficult to process complex profiles, and even can process some unobservable processing sites. 

       The disadvantage of CNC machining is the high cost of machine tools and equipment, requiring maintenance personnel with a high level.