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Functional Surface Modification by Forced Discharge Dispersion.

Research Project

Project/Area Number 06555041
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 InstitutionToyota Technological Institute

Principal Investigator

MOHRI Naotake  Toyota Technological Institute, School of Engineering, Professor, 大学院・工学研究科, 教授 (90126186)

Co-Investigator(Kenkyū-buntansha) OOIZUMI Toshiro  Mitsubishi Electric Corp., Nagoya Works, Mechatronics Div., Deputy Manager, 名古屋製作所メカトロ技術部, 次長
FURUYA Masanori  Toyota Motor Corp., Tool Management Div., Deputy Manager, 工機管理部, 室長
FURUTANI Katsushi  Toyota Technological Institute, School of Engineering, Lecturer, 大学院・工学研究科, 講師 (00238685)
TSUNEKAWA Yoshiki  Toyota Technological Institute, School of Engineering, Professor, 工学部, 教授 (50148350)
Project Period (FY) 1994 – 1996
Project Status Completed (Fiscal Year 1996)
Budget Amount *help
¥11,800,000 (Direct Cost: ¥11,800,000)
Fiscal Year 1996: ¥800,000 (Direct Cost: ¥800,000)
Fiscal Year 1995: ¥2,600,000 (Direct Cost: ¥2,600,000)
Fiscal Year 1994: ¥8,400,000 (Direct Cost: ¥8,400,000)
KeywordsElectrical discharge machining / Surface modification / Structure elements / Wear resistance / Discharge dispersion / Powder mixed oil / Silicon electrode / Dot-matirix method / 表面処理 / 圧粉体電極 / インチワ-ム機構 / ドットマトリクス / マシニングセンタ / ロボット / エンドエフェクタ / 形状創成 / 機能材料 / 部品加工 / 複合加工 / エンドエフエクタ / 工作機械 / 加工状態認識
Research Abstract

This study aism to generate a functional surface on a work piece or on the surface of structural elements by electrical discharge machining in whch discharges are forced to disperse.
In order to disperse discharges, a doped silicon plate is used as an elctrode or silicon powder mixed oil is used as working fluid. Bundled wires are also used as the electrode for the discharge dispersion. Crack less fine surface is realized on the work piece by means of those methods. Furthermore, a thin wire electrode or a green compact electrode is used for materials accretion on a work piece. The surfaces machined with these electrodes especially with a silicon electrode have remarkable corrosion resistance. The hardness of the modified surface by a TiC green compact electrode gets more than 2000Hv and it has high wear resistance in cutting process.
Some end effecters with inch worm mechanism are developed for electrical discharge machining by use of a robot or traditional machine tools. Dot matrix type machining unit with several thin wires are used for rapid prototyping process. Millimeter order crack less machining is realized by adequate pulse distribution onto each thin wire.
It has been confirmed that the surface of a cold forging die or a cutting tool edge can be modified by these methods in practical processes.

Report

(4 results)
  • 1996 Annual Research Report   Final Research Report Summary
  • 1995 Annual Research Report
  • 1994 Annual Research Report
  • Research Products

    (24 results)

All Other

All Publications (24 results)

  • [Publications] N.Mohri et al.: "Detection of Discharge dispersion in Electrical Discharge Machining" Proc.of 3rd International Conference on Die and Mold Technology. 341-352 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] N.Mohri et al.: "Time Dependcnce of Electrode Wear in EDM" Prc.,ISEM-11. 447-453 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] H.Morita et al.: "Electrical Discharge Device with Direct Drive Method for Thin Wire Electrode" Proceedings of IEEE International Confercnce on Roboties and Automation,Magoya,Japan. 73-78 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] H.Morita et al.: "Electrode Wear Process in Electrical Discharge Machining" Annals of CIRP,44/1. 165-168 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] 鈴木政幸ほか: "放電加工における電極低消耗の研究(第4報) 電極へのカーボン付着現象" 電機加工学会誌. 29. 1-10 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] 古谷克司ほか: "ドットマトリクス方式を用いた放電加工による3次元形状創成加工法(第1報)-加工法の提案-" 精密工学会誌. 63. 211-215 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] K.Furutani, N.Mohri, T.Higuchi: "Direct Drive Method of EDM Electrode Utilizing Impulsive Force" Proceedings of Japan-France Congress on Mechatronics, vol.1, Takamatsu, Japan. 184-187 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] H.Moronuki, N.Mohri, K.Furutani: "Detection of Discharge Position in Finish Machining by EDM" Proc.of 2nd Japan France Congress on Mechatronics. Vol.1. 310-313 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] N.Mohri, K.Tanaka, M.Suzuki, K.Furutani: "Detection of Dischage dispersion in Electrical Discharge Machining" Proc.of 3rd International Conterence on Die and Mold Technology. 341-352 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] N.Mohri, M.Suzuki, N.Saito: "Time Dependence of Electrode Wear in EDM" Proc.ISEM-11 Lausanne, Switzerland. 447-453 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] K.Furutani, N.Mohri, T.Higuchi: "Miniaturized Electrode Feeding Devices Using Piezoelectric Elements" Proc.of ISEM-11. 621-628 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] H.Morita, K.Furutani, N.Mohri: "Electrical Discharge Device with Direct Drive Method for Thin Wire Electrode" Proc.of IEEE International Conference on Robotics and Automation Nagoya, Japan. 73-78 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] N.Mohri, Suzuki, K.Furuya, N.Saito: "Electrode Wear Process in Electrical Discharge Machining" Annals of CIRP. 41/1. 165-168 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] K.Furutani, T.Enami, N.Mohri: "3D Profile Generation by Dot-matrix Method Using Miniaturized Electrode Feeding Devices" Proc.of 11th Annual Meeting of the American Society for Precision Engineering. 86-90 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] T.Enami, K.Furutani, N.Mohri: "EDM for 3D Profile Fabrication by Dot-matrix Method" Proc.of the 4th International Conference on Control, Automation, Robotics and Vision (ICARCV '96), Singapore. 339-343 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] K.Furutani, T.Enami, N.Mohri: "Dot-matrix Electrical Discharge Machining for Shaping Fine structure" Proc.of IEEE the 10th International Workshop on Micro Electro Mechanical Systems, Nagoya, Japan. 180-185 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] 島本講平,毛利尚武 他: "細線電極による放電表面処理" 1997年精密工学会春季大会講演論文集. 第2分冊. 727-728 (1997)

    • Related Report
      1996 Annual Research Report
  • [Publications] 白井一久,毛利尚武 他: "超小型電極送り機構を用いたドットマトリクス方式による三次元形状創成加工法(第4報)" 1997年精密工学会春季大会講演論文集. 第1分冊. 261-262 (1997)

    • Related Report
      1996 Annual Research Report
  • [Publications] 白井一久,毛利尚武 他: "ドットマトリクス方式放電加工における放電分散現象の観察" 1996年精密工学会秋季大会講演論文集. 第1分冊. 9-12 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] 毛利尚武,古谷克司 他: "Forced Discharge Dispersion by Dot-matrix method" Annals,CIRP(International Institution for Production Engineering Rearch. Vol.46 No.1(in press). (1997)

    • Related Report
      1996 Annual Research Report
  • [Publications] 江南俊夫,毛利尚武 他: "超小型電極送り機構を用いたドットマトリックス方式による三次元形状創成加工法(第3報)" 1996年精密工学会春季大会講演論文集. 第1分冊. 233-234 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] 古谷克司,毛利尚武 他: "3-D Profile Generation by Dot-matrix Method Using Miniturized Electrode Feeding Devices" Proc.of 11th Amual Meeting of ASME. 86-90 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] Naotake Mohri et al.: "Time Dependance of Electrode Wear in EDM" Proc. of International Symposium for Electromachining (ISEM-11). 447-454 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] Naotake Mohri et al.: "Electrode Wear Process in Electrical Discharge Machining" Annals of the CIRP. 44. 165-168 (1995)

    • Related Report
      1995 Annual Research Report

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Published: 1994-04-01   Modified: 2016-04-21  

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