渦電流形センサを用いた転造加工を施した焼結歯車の良否判定

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  • 水野 勉
    Electrical and Electronic Engineering, Faculty of Engineering, Shinshu University
  • 安里 優一
    Electrical and Electronic Engineering, Faculty of Engineering, Shinshu University
  • 後藤 聖
    Electrical and Electronic Engineering, Faculty of Engineering, Shinshu University
  • 渡辺 隆志
    Electrical and Electronic Engineering, Faculty of Engineering, Shinshu University
  • 竹増 光家
    Department of Mechanical Systems Engineering, Faculty of Systems Engineering, Tokyo University of Science, Suwa
  • 新仏 利仲
    Nissei Co., Ltd.
  • 天野 秀一
    Nissei Co., Ltd.
  • 吉川 紘
    Nissei Co., Ltd.

書誌事項

タイトル別名
  • Inspection of Surface Rolled Sintered Gears using Eddy-Current Sensor
  • ウズデンリュウケイ センサ オ モチイタ テンゾウカコウ オ ホドコシタ ショウケツ ハグルマ ノ リョウヒ ハンテイ

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抄録

A inspection regarding surface rolled sintered gears performed in-line is required. The authors have proposed a inspection method using an eddy-current sensor. Since this method uses the eddy-current, a inspection of gears is possible in a nondestructive manner with a short time. In this paper, in order to perform a inspection using an eddy-current sensor, porosity, residual stress, resistivity, and relative permeability of the surface rolled sintered steel are measured. Furthermore, output voltage characteristics of surface rolled sintered gears that the amounts of surface rolling differ are measured. As a result, it is clarified that porosity and resistivity decrease and relative permeability increase with increasing residual stress. Moreover, it is clarified that over surface rolled gear can be judged with output voltage.

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