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1996 Fiscal Year Final Research Report Summary

Development of Machine Tool Table Systems with Variable Damper Mechanisms by Applying Electrorheological Fluids

Research Project

Project/Area Number 07555044
Research Category

Grant-in-Aid for Scientific Research (A)

Allocation TypeSingle-year Grants
Section試験
Research Field 機械工作・生産工学
Research InstitutionKeio University

Principal Investigator

INASAKI Ichiro  Keio University, Faculty of Science and Technology, Professor, 理工学部, 教授 (30051650)

Co-Investigator(Kenkyū-buntansha) ANZAI Hidenobu  Fujikura Kasei Co.Ltd., Technical Development Division, Manager, 技術開発部, 研究職
TSUZUKI Yoshihiko  Brother Industries Ltd., Quality Technical Center, Director, 品質技術センター, 部長
AOYAMA Hideki  Keio University, Faculty of Science and Technology, Associate Professor, 理工学部, 助教授 (40149894)
AOYAMA Tojiro  Keio University, Faculty of Science and Technology, Professor, 理工学部, 教授 (70129302)
Project Period (FY) 1995 – 1996
KeywordsElectrorheological Fluid / Table System / Machine tools / Damping Force / Chatter Vibration / Machining
Research Abstract

Rolling guide ways are widely applied to machine tool table systems these days because of their low frictional resistance and high maintainability. Rolling-guided tables have, however, some demerits such as low dampling ability, which causes chatter vibraions in maching process. The dynamic characteristics of the table system is one of the important factors which decide machining accuracy and Productivity of machine tools. It is desirable to improve the dynamic performance of the rolling-guided tables.
An effective method to improve the dynamic performance of rolling-guided tables is to apply an additional damping force to the tables. However, the additional damping force will also deny the low frictional resistance, therefore, it is necessary to control the additional damping force according to the table motions. In this study, a variable damping system (electrorheological fluid film damper) has been developed andattached to a rolling-guided table system. The electrorheological fluid was applied to control the damping force generated by the fluid film damper. The electrorheological fluid is a kind of colloidal suspension, whose apparent viscosity can be adjusted depending on the applied electric field. The performance of the developed table system was evaluated by means of the impulse force response method and the cutting tests. The conclusions are summarized as follows.
(1) The additional damping force generated by the electrorheological fluid film damper was controll able by changing the applied electric field.
(2) The dynamic performance of the developed rolling-guided table was improved by the effect of the electrorheological fluid film damper, especially in the direction of the table feed.
(3) Chatter vibrations during machining were suppressed by the electrorheological fluid film damper, and the roughness of the machined surface was improved.

  • Research Products

    (8 results)

All Other

All Publications (8 results)

  • [Publications] 石山 誠: "ER流体を応用した工作機械テーブルシステムの動特性向上(基本構造モデルによる動特性解析)" 日本機械学会論文集(C編). 60・577. 2964-2970 (1994)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] M.Ishiyama: "Application of Electrorheological Fluid for the Improvement of Dynamic Characteristics of Machine Tool Table Systems(Basic Analysis of the Dynamic Characteristics of Tabel Systems)" Proceedings of the 9th ASPE Annual Meeting. Oct.53-56 (1994)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] T.Aoyama: "Increase of the Dynamic Stiffness of Machine Tool Table Systems by Applying the Electrorheological Fluid Film Dampers" Proceedings of the International Conference on Precision Engineering ′95(2nd ICMT). Nov.106-109 (1995)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 石山 誠: "ER流体を応用した工作機械テーブルシステムの動特性向上(テーブルシステムの試作と切削試験による性能評価)" 日本機械学会論文集(C編). 62・593. 326-332 (1996)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Makoto Ishiyama, Tojiro Aoyama, Kazuya Edamura: "Application of Electrorheological Fluid for the Dynamic Performance Enhancement of Machine Tool Table Systems (Analysis of the Dynamic Characteristics of a Simple Table System)" Transactions of the Japan Society of Mechanical Engineers. 60,577. 2964-2970 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Makoto Ishiyama, Tojiro Aoyama, Kazuya Edamura: "Application of Electrorheological Fluid for the Improvement of Dynamic Characteristics of Machine Tool Table Systems (Basic Analysis of the Dynamic Characteristics of Table Systems)" Proceedings of the 9th ASPE Annual Meeting. 53-56 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Tojiro Aoyama, Makoto Ishiyama, Kazuya Edamura, Yoshihiko Tsuzuki: "Increase of the Dynamic Stiffness of Machine Tool Table Systems by Applying the Electrorheological Fluid Film Dampers" Proceedings of the International Conference on Precision Engineering '95 (2nd ICMT). 106-109 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Makoto Ishiyama, Tojiro Aoyama, Kazuya Edamura, Yoshihiko Tsuzuki: "Application of Electrorheological Fluids for the Dynamic Performance Enhancement of Machine Tool Table Systems (Trial Manufacture of a Table System and Performance Evaluation by Means of Cutting Tests)" Transactions of the Japan Society of Mechanical Engineers. 62,593. 326-332 (1996)

    • Description
      「研究成果報告書概要(欧文)」より

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Published: 1999-03-09  

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