Estimation Method of Machining Error on Low Rigidity Workpiece for Tool Posture Planning

During cutting of low rigidity workpieces, avoiding elastic deformation due to machining forces is important. In multi-axis cutting of jet engine blades, tool posture is typically determined by trial and error based on the computer-aided machining operator’s experience. In this study, we developed a...

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Bibliographic Details
Published in:International journal of automation technology 2017-11, Vol.11 (6), p.964-970
Main Authors: Ichikawa, Kohei, Saito, Hironobu, Kaneko, Jun’ichi, Okuma, Yuki, Horio, Kenichiro
Format: Article
Language:English
Subjects:
Cutting force
Deformation analysis
Elastic deformation
Finite element method
Jet engines
Machining
Posture
Rigidity
Surface finishing
Workpieces
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Summary:During cutting of low rigidity workpieces, avoiding elastic deformation due to machining forces is important. In multi-axis cutting of jet engine blades, tool posture is typically determined by trial and error based on the computer-aided machining operator’s experience. In this study, we developed a system of quantitative evaluation of machining error for blade surface finishing process by estimating the cutting force at each cutting point of the blade with different relative tool postures, and analyzing the deformation at each point with a finite element analysis. With the system, we become be able to perform simulations to evaluate tool posture with less shape error, maintaining the machining efficiency.
ISSN:1881-7629
1883-8022
DOI:10.20965/ijat.2017.p0964