Dynamics of High-speed Machining of Aerospace Structures using Finite-element Analysis

Defence Science Journal

P. Radhakrishnan¹  V. Prabhu Raja¹  J. Kanchana¹  R. Prakash¹ 

[1] PSG College of Technology, Coimbatore

关键词: High-speed machining;    finite-element analysis;    thin ribs;    harmonic analysis;    end-milling;    kqumcy response;    aerospace structures;    aircraft components;    m 4re moval me;   

DOI  :  

学科分类：社会科学、人文和艺术（综合）

来源: Defence Scientific Information & Documentation Centre

【 摘 要 】

"The study is aimed to investigate certainaspects of high-speed machining for improving the accuracy ofthin-walled aerospace components. The approach used involved thedevelopment of finite-element model of the workpiece to be machined andits subsequent frequency response analysis. The response of theworkpiece subjected to dynamic cutting force gives an indication of thebest possible speeds from the point of view of accuracy. Based on theresults of the analysis, it is possible to predict the range of spindlespeeds at which the workpiece demonstrates very high dynamic rigidity.In addition, this study has established the superiority of high-speedmachining to produce aerospace structures with high stiffness-to-weightratio and also throws some light on the capability of high speed inmachining of low rigidity sculptured-surface components. "

【 授权许可】

Unknown