Study on relationships between surface quality and contaminations in coolant

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  • クーラント汚染度とワーク表面品位との相関研究
  • クーラント汚染度とワーク表面品位との相関研究(第1報)スラッジおよび砥粒のスクラッチ形成に及ぼす影響
  • クーラント オセンド ト ワーク ヒョウメン ヒンイ トノ ソウカン ケンキュウ ダイ1ポウ スラッジ オヨビ トリュウ ノ スクラッチ ケイセイ ニ オヨボス エイキョウ
  • 第1報：スラッジおよび砥粒のスクラッチ形成に及ぼす影響
  • 1st report: The effects of sludge and abrasive grain contents on the formations of scratches

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Abstract

In this study, the correlations between surface quality and contamination in coolant were investigated on the assumption that chips produced in grinding and abrasive grains released from a wheel affect the work surface. The number of scratches, which is one of the most important problems in production fields, in relation to sludge and abrasive contents was systematically summarized. The experimental results showed that the number of scratches increased monotonically with increasing sludge contents, and remained constant at 50×107/l. Meanwhile, abrasive grains in coolant were dominantly involved in the formation of scratches, and had a 40-fold impact on the number of scratches rather than sludge. Moreover, optical microscopy indicated that configurations of scratches could be categorized as linear-type or curve-type. Whereas the former was observed with increasing sludge contents, the latter emerged with contamination of abrasive grains.

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