MINIMIZATION OF DEFLECTION ERROR IN FIVE AXIS MILLING OF IMPELLER BLADES

IF 10.1 2区工程技术 Q1 ENGINEERING, MECHANICAL

Facta Universitatis-Series Mechanical Engineering Pub Date : 2023-08-10 DOI:10.22190/fume210822069s

Mohsen Soori, Mohammed Asmael

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引用次数: 4

Abstract

The 5-axis CNC machine tools are used for manufacturing free form surfaces of sophisticated parts such as turbine blades, airfoils, impellers, and aircraft components. The virtual machining systems can be used in order to analyze and modify the 5-axis CNC machine tools operations. Cutting forces and cutting temperatures induce deflection errors in thin-walled structures such as impeller blades through machining operations. Thin-walled impeller blades' flexibility can result in machining errors such as overcutting or undercutting. So, decreasing the deflection error during machining operations of impeller blades can achieve the desired accuracy in produced parts. Optimized machining parameters can be obtained to minimize the deflection of machined impeller blades. In terms of precision and efficiency enhancement in component production processes, a virtual machining system is developed to predict and minimize deflection errors of 5-axis milling operations of impeller blades. The deflection error in machined impeller blades is calculated by using finite element analysis. The optimization methodology based on the genetic algorithm is applied to minimize the deflection error of impeller blades in machining operations. To validate the integrated virtual machining system in the study, the impeller is milled by using a 5-axis CNC machine tool. The CMM machine is used in order to measure and analyze deflection error in the machined impeller blades. As a result, by using the developed virtual machining system in the study, accuracy and efficiency in 5-axis milling operations of impellers can be increased.

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叶轮叶片五轴铣削时偏转误差最小化

五轴数控机床用于制造复杂零件的自由曲面，如涡轮叶片，翼型，叶轮和飞机部件。虚拟加工系统可以用于分析和修改五轴数控机床的操作。切削力和切削温度会引起薄壁结构(如叶轮叶片)在加工过程中的偏转误差。薄壁叶轮叶片的柔性会导致过切或下切等加工误差。因此，减小叶轮叶片在加工过程中的偏转误差，可以达到生产零件所要求的精度。优化加工参数，使加工后的叶轮叶片挠度最小。为了提高零件生产过程的精度和效率，开发了一种虚拟加工系统，以预测和最小化叶轮叶片五轴铣削加工的偏转误差。采用有限元方法计算了叶轮加工叶片的挠度误差。采用基于遗传算法的优化方法，使加工过程中叶轮叶片的偏转误差最小。为了验证研究中的集成虚拟加工系统，在五轴数控机床上铣削叶轮。利用三坐标测量机对加工后的叶轮叶片的偏转误差进行测量和分析。因此，利用所开发的虚拟加工系统，可以提高叶轮五轴铣削加工的精度和效率。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Facta Universitatis-Series Mechanical Engineering ENGINEERING, MECHANICAL-

CiteScore

14.40

自引率

2.50%

发文量

审稿时长

6 weeks

期刊介绍： Facta Universitatis, Series: Mechanical Engineering (FU Mech Eng) is an open-access, peer-reviewed international journal published by the University of Niš in the Republic of Serbia. It publishes high-quality, refereed papers three times a year, encompassing original theoretical and/or practice-oriented research as well as extended versions of previously published conference papers. The journal's scope covers the entire spectrum of Mechanical Engineering. Papers undergo rigorous peer review to ensure originality, relevance, and readability, maintaining high publication standards while offering a timely, comprehensive, and balanced review process.