ダイヤモンド砥粒や結合剤に対する改質と耐摩耗性に優れた極微粒レジンボンドホイールの開発

概要

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Experimental research on preventing wheel wear of a resin-bonded diamond wheel that was used for mirror grinding of die materials was carried out. The gripping strength of diamond grains was increased by modifying their surfaces using radio-frequency sputtering and surface active agents. Also, the wear resistance of a bonding material was strengthened by varying the pH of the hardening catalyst and by mixing inorganic micropowder with the bonding material. The grinding tests revealed that the gripping strength of SiO_2-sputtered diamond grains to the bonding material was highly strengthened by covering them with a silane coupling agent. This gripping strength increased proportionally with the density of SiO_2 particles attached to the grain surfaces. It was also shown that a tightly cross-linked molecular network was generated under acidic conditions; therefore the wear resistance of the bonding material was improved when sodium acid pyrophosphate was used as the hardening catalyst.
社団法人日本機械学会の論文
1998-08-25