薄壁叶片五轴加工的虚拟动力学模型

IF 2.4 3区 工程技术 Q3 ENGINEERING, MANUFACTURING
B. Karimi, Y. Altintas
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引用次数: 0

摘要

介绍了薄壁叶片的五轴球头铣削动力学。切削力是根据沿刀具路径的球头立铣刀-刀片几何啮合图预测的。薄壁叶片的频率响应函数(FRF)使用有限元壳体单元进行预测,并随着金属的去除而沿着刀具路径进行更新。预测的切削力施加在工件和刀具FRF上,以预测每个刀具位置的强迫振动和颤振稳定性。使用一种更新刀具-工件接合(CWE)的简化方法来获得叶片上每个所需点的三维稳定凸角图。该集成模型用于在数字环境中模拟薄壁叶片的五轴加工。通过加工一系列薄壁矩形板和一个扭曲的风扇叶片,对所提出的数字模型进行了实验验证。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Virtual Dynamics Model for 5-axis Machining of Thin-Walled Blades
The five-axis ball-end milling dynamics of thin-walled blades is presented. The cutting forces are predicted from the ball end mill–blade geometry engagement maps along the tool path. The Frequency Response Function (FRF) of the thin-walled blade is predicted using Finite Element shell elements, and it is updated along the toolpath as the metal is removed. The predicted cutting forces are applied on both the workpiece and tool FRFs to predict the forced vibrations and chatter stability at each tool location. A simplified method to update the cutter–workpiece engagement (CWE) is used to obtain the three-dimensional stability lobe diagram at each desired point on the blade. The integrated model is used to simulate the 5-axis machining of thin-walled blades in the digital environment. The proposed digital model is experimentally validated by machining a series of thin-walled rectangular plates and a twisted fan blade.
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来源期刊
CiteScore
6.80
自引率
20.00%
发文量
126
审稿时长
12 months
期刊介绍: Areas of interest including, but not limited to: Additive manufacturing; Advanced materials and processing; Assembly; Biomedical manufacturing; Bulk deformation processes (e.g., extrusion, forging, wire drawing, etc.); CAD/CAM/CAE; Computer-integrated manufacturing; Control and automation; Cyber-physical systems in manufacturing; Data science-enhanced manufacturing; Design for manufacturing; Electrical and electrochemical machining; Grinding and abrasive processes; Injection molding and other polymer fabrication processes; Inspection and quality control; Laser processes; Machine tool dynamics; Machining processes; Materials handling; Metrology; Micro- and nano-machining and processing; Modeling and simulation; Nontraditional manufacturing processes; Plant engineering and maintenance; Powder processing; Precision and ultra-precision machining; Process engineering; Process planning; Production systems optimization; Rapid prototyping and solid freeform fabrication; Robotics and flexible tooling; Sensing, monitoring, and diagnostics; Sheet and tube metal forming; Sustainable manufacturing; Tribology in manufacturing; Welding and joining
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