渦電流法による鋳造カムシャフトのチル化率評価

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書誌事項

タイトル別名
  • A Method of Non-destructive Inspection for Chilled Structures in Cam-shafts Using the Eddy Current Technique
  • 渦電流法による鋳造カムシヤフトのチル化率評価
  • ウズデンリュウホウ ニ ヨル チュウゾウ カムシヤフト ノ チルカリツ ヒョウカ

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抄録

Cam-shafts used for internal-combustion engines need to be chilled at the foundry stage to increase the cam hardness, however, unexpected chilled structures may occur on the sensor plate surface. Chilled structures on the sensor plate may break a grinding tool during the grinding process and may also hinder the fabrication of a specified shape due to resistance arising from the hyper-hardness of the chilled structure. For this reason, developing an inspection technique and a device for detecting unnecessary chilled structures before the grinding process of cam-shafts is needed to determine the rejection and removal of a sample with chilled structures. This paper reports on a recently developed non-destructive method employing the Eddy Current method to detect chilled structures on a cam-shaft sensor plate accurately.

収録刊行物

  • 非破壊検査

    非破壊検査 63 (7), 360-364, 2014

    一般社団法人 日本非破壊検査協会

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