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IJAT Vol.11 No.6 pp. 964-970
doi: 10.20965/ijat.2017.p0964
(2017)

Paper:

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

Kohei Ichikawa*,†, Hironobu Saito*, Jun’ichi Kaneko*, Yuki Okuma**, and Kenichiro Horio*

*Graduate School of Science and Engineering, Saitama University
255 Shimo-Ohkubo, Sakura-ku, Saitama-city, Saitama, Japan

Corresponding author

**Department of Engineering, Saitama University, Saitama, Japan

Received:
June 28, 2017
Accepted:
October 13, 2017
Online released:
October 31, 2017
Published:
November 5, 2017
Keywords:
CAM, blade cutting, FEM, simulation, low rigidity workpiece
Abstract

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.

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Last updated on Apr. 19, 2018