Efficient Process For Multi-Axis CNC Machining And Parameter Optimization Techniques

This paper searches a strategy for the CNC manufacturing process, which aims at achieving efficient cutting in the conventional CAM system, especially in condition that there is lack of efficient CAM system.It looks on the processing of complex surface as research object, including the development of cutting template, the planning of tool path, the determination of tool vector, virtual manufacturing technology, and cutting parameter optimization. As follows:(1)It focuses on all sorts of surfaces characteristic, Develop hi-efficient 3D modeling and programming template system based on the CAD/CAM software platform. After analysed and contrasted, it was proved that the technology can shorten the prepared period significantly.(2)It puts forward efficient planning technology of tool path for rough and finish machining. The former adopts tool path planning based on IPW; and the latter adopts parameter curve algorithm to generate tool path. In the same time, it gives a solution to generating the hard cutting area's tool path by using border points interpolate algorithm, what's more, achieved the area divide by utilizing the border interpolate vector.(3)Virtual machining technology optimizes tool path, and inspects the scientific of CNC machining process, and raises the ratio of utilization of CNC machine.(4) As for tool path planning scheme which point at the category of blade components, sets up cutting parameter optimization database based on VERICUT software, realizes cutting parameter optimization during every machining phase.(5)Finish an integral turbine manufacturing on the 5-axis CNC machine, which verifies the feasibility of this technology as above, it also gives a proof that combining with this technology, the turbine machining ratio can be increased by 30～50%.In conclusion, this paper presents a set of hi-efficient multi-axis machining technology, which has been applied on many CNC cutting of hydraulic turbine components. The results of quality and efficiency would be satisfied with R&D and produce. What's more, some technology in the project possesses generality, which could be used on the other multi-axis machining of product.