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Austempered ductile iron (Austempered Ductile Iron, referred to as the ADI) for its excellent mechanical properties, has been widely applied to the fields of aerospace, shipbuilding, vehicles and heavy. Austempering heat treatment process significantly improve the overall mechanical properties of ductile iron, also significantly reduced the mechanical cutting performance of the material, serious constraints ADI material widely used (this situation is particularly serious in China). The this thesis Austempering temperature of 250 ° C, 300 ° C, 350 ° C quenching time for the three groups of ADI material 1h. Produced by Misumi TiAlN and TiSiN, two coated cutter dry milling tests for each group ADI material, research the ADI material milling process medium temperature quenching temperature, knives, and cutting speed, feed per tooth is the amount, cutting width and depth of cut milling force, tool wear, surface roughness effects. Based on test data based on fuzzy Subtractive Clustering milling force prediction model, the model for the milling of the ADI material to provide reasonable cutting. The content of this paper is as follows: 1. For three groups ADI material, isothermal quenching temperature, cutting tools, milling force; First using orthogonal test method of cutting speed, feed per tooth and the cutting width and cutting depth of cutting four factors milling force, and then discussed the impact of various factors on the milling force with a single factor method. Two tool milling the three groups ADI material, record the process of cutting tool flank wear, analysis and isothermal quenching temperature and tool material on the flank wear; milling S-4700 scanning electron microscope After each milling tool flank wear the morphology (flank), analysis of the mechanism of the cutting tool wear. 2205 surface roughness measuring instrument measuring the the two Milling workpiece surface roughness, isothermal quenching temperature, cutting tool material and cutting parameters on the surface roughness. Based Fuzzy subtractive clustering model for the establishment of isothermal quenching temperature, cutting tools and cutting parameters predicted milling force model. In this paper, the isothermal quenching temperature 250 ° C, 300 ° C, 350 ° C three ADI material milling finishing cutting the amount of reference data. Milling force forecasting model based on fuzzy subtractive clustering for milling force with the heat treatment process parameters, cutting tools and cutting parameters change provides a theoretical basis; predicted milling force model test measured the milling force the error does not exceed 8.86%, indicating that milling force prediction model is reliable and can be used for the actual milling process of milling force prediction.
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