Research On Technical Parameters And Cuttingtool Path Of NC Machining Process

With the development of science and technology, great changes have taken place in the manufacturing. Every kinds of advanced manufacture technology are applying in the manufacture system now. The manufacture system is developing in the direction of numeric, integration, parallelize, network and flexible. In the system of modern manufacture, NC machining equipment is the core of the manufacture system and the important subassembly of the modern manufacture system. The technology of NC machining is the based and key machining technology of the modem automatic, flexible and numeric. The optimization of NC machining process parameters and the cutting tool path is the available approach of exerting the NC machining equipment productivity.In this paper, we mostly discussed the cutting tool choice based on the feature of cutting process as belongs to the optimization of NC machining process parameters. Firstly we discussed and determined the feature of turning and milling process, based on which we set up the knowledge rules of the turning cutting tool and milling cutting tool choice. We applied the knowledge rules to the expert system of NC machining process parameters repository, which realized the cutting tool choice of NC machining. We also added the explaining implements of turning and milling tool and perfected the expert system of NC machining process parameters.Cutting tool path of NC machining is one of the important parts to determine NC machining process. Whether the tool path quality is good or bad will directly affect the machining and the machining cost of part. The milling cutting tool path creative method of representative part is studied in this paper .We optimized several cutting tool paths of the representative part aiming at little fluctuation of cutting force and high precision of superficial quality. Ball-end milling cutting tool is the key cutting tool of the complex surface. The cutting power of Ball-end milling cutting tool is the base of choosing machine tool, cutting tool, clamp tool and realizing the optimizing of milling technical parameters and the cutting force fluctuating is one of the main aims of the cutting tool choice. In this paper, we studied the cutting force ofBall-and milling based on theory and test, as realized the cutting tool choice based on the least cutting force fluctuating.