薄壁葉片精密數(shù)控加工變形分析與控制技術畢業(yè)設計論文-展示頁
2025-07-07 10:35本頁面
【正文】 變形進行了有限元數(shù)值模擬分析，提出了變形補償策略。在此基礎上，有提出了利用變形模擬值修正刀軸適量補償葉片加工變形的刀軌優(yōu)化策略。關鍵詞：UG建模；薄壁葉輪；有限元分析；誤差補償ABSTRACT In the aerospace industry, CNC milling is thin a typical parts machining processing technology, especially the most widely used high speed milling. However, due to the characteristics of thinwalled structure to stiffness, the actual process of workpiece and props processing error caused by deformation of the serious influence workpiece machining precision and surface quality, even cause ponents of the premium. Therefore, study machining deformation of thinwalled milling process to realize forecast and control, the manufacturing process scheme and processing parameters optimized rational selection of both the important meaning. Therefore, this article takes the thinwalled package flank milling process for research object prehensive use of timid uzziel basic principle, the finite element numerical simulation technology and nc machining technology, machining deformation prediction method of study, pensatory strategies and concrete work include:Thin blade, and the UG modeling from UG import ANSYS software.Establish liu wen mill cutter milling spiral mechanical model. On the analysis of milling characteristics is established, on the basis of milling force coefficients of polynomial model with cutting dosages, with four factors regression orthogonal experimental method is used to determine the model constants. Finally, used experimental results verify the correctness of the mechanical model.On airline blade lateral milling machining deformation finite element numerical simulation are analyzed, and the deformation pensation strategy. On the analysis of the characteristics of leaf surface based on the surface, using the coordinate transform realize milling force calculation and finite element model of loading, got processed surface shape error data. On this basis, have proposed to use deformation simulation value fixed cutter axis m
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