Design Of Solid Carbide End Milling Cutter For High-Speed Cutting And Study Of Its Property

High-speed machining (HSM) has become the main trend in the machining field, high-speed milling cutter is one of the crucial technologies to achieve high-speed machining. As a result of its many advantage as good cutting property, excellent machining, surface quality and so on, helical end milling cutter is applied in high-speed machining widely, especially in complicated surface, and large-scale integrated part in aircraft. It is very difficult to design and manufacture helical end milling cutter because its intricate geometry configuration.Firstly, the end milling cutters are classified by their head figure, on the basis of their sort, the geometry parameters are depicted, the curve expressions of edges and sections are founded. By the powerful expression function and some skills as sweep, boolean of UG, the proper geometry model of end milling cutter is achieved. Three-dimensional model can be created into planar engineering drawing and guided into finite element software ABAQUS to actualize analysis, Base on the property of cutter in HSM as force and vibration, refer to classics literature and handbook of overseas, contacting material property, establish proper configuration parameters adapt to HSM.Secondly, cutting force is one of the important physical in machining. The changing of cutting force affects appearing and distributing of cutting heat and wear of cutting tools, and it is the indispensability condition of the design of cutting tools. It is usually that the experiential formula is the basis to forecast cutting force, but in the high-speed machining especially in aluminium alloy machining, there are no perfect theory. So to study cutting force of machining aluminium alloy by carbide end milling cutter, experiment is the most dependable method. The regression-orthogonal experimental method is applied to study the effect of cutting force by many factors. The mathematics model was deduced of four factors and four standards. The models were not only used in this thesis, but also can be used in similar experimental study for interrelated fields.Thirdly, milling cutters were machined in the machining tools, so the property of cutters has relation with machine tools and fixture. To study its property by experiment is wasteful and unpractical. In the environment of Abaqus, the load of cutter and its dynamic property were simulated, The results of loading condition and fixed frequency are achieved. These conclusions can give the help of choosing cutting parameters and configuration design of cutter as handle, edge, helical angle, width of blade.Fourthly, in high-speed machining, cutting force, cutting heat and vibration of machining tools are studied usually, but the chip is studied little. Aim at the character of high-speed machining, the figuration of chip was studied. By the theory, the figure of chip was drawed in UG, theory results were agree with experimental results. The study of chip can be feed back to the design of cutters. The method is dependable.The design of cutters was the key point in this paper, any tache as experiment and simulation are service. It can be looked as a closed loop. The conclusions of paper were validated by compared analysis example distortion with the real part distortion. The results from the test examples have demonstrated the feasibility and veracity of the proposed methods.