Milling Path Of Thin-Walled Component

With the development of modern industry,the demand of transport capacity of the space rocket is increased.The fuel tank is the main bearing components and the tank of rockets is typically weak rigidity thin-walled structures.Therefore,the manufacturing demand of the thin-walled components is higher and higher.In this paper,The grid milling path planning of the large thin-walled components is studied.In this paper,the parametric modeling of thin-walled component is completed by using the finite element analysis software.A matrix,which each element corresponding to each grid of the thin-walled component,is established.The dynamic characteristics analysis and deformation analysis of the component are completed.The optimal clamping way of the component is determined.The change of the dynamic characteristics with the different processing group is analyzed.The optimal combination of grids is obtained.Thus,grid milling path planning of thin-walled component contains grids machining path planning and groups machining sequence planning.Grids in group machining path planning is analyzed by using harmonic response analysis.Because of the different position of the group,the entire group and half a group were analyzed respectively.In this paper,four specified grid milling paths are used in analysis and the change of the dynamic characteristics of the component is obtained with different grid milling paths.On the basis of that,the best processing sequence is obtained.Finally,grid milling experiment of shrinkage ratio thin-walled components is completed.The experimental results are consistent with the analysis results.The optimal grid milling path planning method is confirmed by grid milling experiment.In this paper,the optimal grid milling path planning method provided theoretical basis for further research.Meanwhile,it provides an effective processing route for the processing and manufacturing of thin-wall components.