Parametric Design Of Plunge Milling Cutter And Optimization Of Cutting Parameters

As the world’s high-end power generation technologies, nuclear powergeneration provides the efficient and clean energy output for many countries. Thehead of water chamber is one of the key components of the nuclear evaporator,produced by only a few developed countries in the world, whose technologies arecontrolled strictly for China. Therefore, studying efficient milling technology on thehead of water chamber as typical machining parts that will have an importantpractical and strategic significance for China’s major chemical and nuclearengineering projects.Firstly, by taking A508-3steel of the head of water chamber as workpiecematerial, tools design and cutting tests of plunge milling were carried on, providingresearch data for processing the head of water chamber. According to the difficultmachining characteristics of the material, such as toughness, high thermalstrength,producing the adhesive wear with tools easily and so on, carrying ondesigning the structure of plunge milling cutter, including the type of tools, materialsof tools, geometry characteristics of tools,,etc.Secondly, based on parametric design of plunge milling cutter of UG NX, theefficiency of the modeling could be improved. Through this platform, three-dimensional model of the difference cutting edge angle would be generated,facilitating late ANSYS and DEFORM simulation.Then, by analyzing the influence of the cutting edge angle to cutting force, thesize of cutting force was obtained. Using ANSYS on static analysis for plungemilling cutter that the cutting edge angle affects the deformation of the plungemilling cutter.Finally, by using the method of orthogonal test and collecting data withLabVIEW, the model of cutting was established. Cutting speed, feed per tooth andradial cutting width for the influence of cutting force were studied. Finishing regression analysis based on test results, and then regression coefficients werecalculated by SPSS software. For materials with A508-3steel and the plunge millingcutter of φ20mm, the optimal cutting parameters were selected by the method ofrange analysis and allowable deflection of tools.