Groove Design And Reconstruction Of Milling Insert With 3D Complex Groove

Indexable milling insert with 3D complex groove has better cutting performance than that with plane face and has the tendency to replace it. However, the types of milling insert with 3D complex groove are few. The groove has been modeled by experience and lacks theory basis. To get better groove with cutting performance and better coupling field, the theoretical and experimental researches of heating density function of milling insert with 3D complex groove under the irregular hot source, prediction of temperature field and stress field, evaluation of complex groove, groove parameters optimization and development of groove reconstruction system have been conducted comprehensively and profoundly.1.The heating density function of milling insert with 3D complex groove under the irregular hot source is established by heat source method based on heat transfer theory, and the model of heating density function and surface heating density function of milling insert whose groove parameters are known have been achieved, which establishes the target function for the groove function and the boundary condition for finite element analysis of temperature field.2.Aiming at the transient characteristic of temperature field and stress field of milling insert, based on artificial neural network theory, predictive models of temperature field and stress field of milling insert with 3D complex groove have been established with the assistance of Levenberg-Marquardt algorithm of BP neural network, which provide data support for the evaluation of complex groove and the groove parameters optimization.3.The system of fuzzy comprehensive evaluation for waved-edge milling insert has been developed with the assistance of fuzzy mathematics theory in VC++ environment which is aided by machining requirements and expert's analysis. This system can be used to evaluate temperature field and stress field and coupling field of waved-edge milling insert under the actions of multi-factor as a whole, which provides technical support for the groove parameters optimization of milling insert with 3D complex groove.4.Mathematics model of multiobjective optimization of groove parameters has been built, optimizing groove parameters on fixed cutting parameters and given restriction based on genetic algorithm have been resolved, the coupling field of milling insert after groove optimization is better than the coupling field of milling insert with other groove parameters.5.The model of waved-edge milling insert has been established in the Pro/E environment, a parametric groove reconstruction system for milling insert with 3D complex groove has been accomplished by asynchronous mode in the Visual C++ 6.0 environment, with the assistance of Pro/TOOLKIT that is the further development tool provided by Pro/ENGINEER. A key technology that controlling the building of complex groove of milling insert by inputting the groove design parameters based on friendly graphical user interface has been accomplished.