Development of conductive-rubber bonded wheel for ELID-grinding and its grinding characteristics

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  • ELID研削用導電性ラバーボンド砥石の開発と加工特性
  • ELID研削用導電性ラバーボンド砥石の開発と加工特性(第2報)導電性ラバーボンド砥石のELIDメカニズム
  • ELID ケンサクヨウ ドウデンセイ ラバー ボンド トイシ ノ カイハツ ト カコウ トクセイ ダイ2ホウ ドウデンセイ ラバー ボンド トイシ ノ ELID メカニズム
  • 第２報：導電性ラバーボンド砥石のELIDメカニズム
  • 2<SUP>nd</SUP> Report: ELID mechanism of electro-conductive rubber bonded wheel

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Abstract

The ELID mechanism of conductive rubber bonded wheel unclear/incomplete developed to enhance the finish in ELID grinding was investigated. Electrolytic dressing was carried out under various electrolytic conditions, and the results of observation of the bond material surface and friction wear experiments showed that by setting appropriate electrolytic conditions, an altered layer that decreases specific wear of the bond material surface is formed. The altered layer was analyzed, and oxygen generated in the electrolysis reaction following electrolytic dressing was found to cause oxidative cross-linking of rubber molecules and harden the grinding wheel surface. In addition, it decreased the carbon black maintaining conductivity of the grinding wheel, thereby insulating the grinding wheel surface. Based on these results, the conductive rubber bond ELID cycle was proposed. Grinding experiments were performed and the ELID cycle was confirmed to function.

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