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H1

Percentage of oil concentrate to water ratio in a water soluble cutting oil

【英】困ったときの知恵袋詳細
Cutting TapsRoll (Forming) Taps Basic Knowledge
We carry out our tapping processing using a water soluble coolant type cutting oil. I have heard there can be a severe change in the taps performance using different types of coolants and cutting oils. What should I be careful of when selecting a coolant and cutting oil?
I think the most important point is to control the percentage of oil concentrate to water ratio in a water soluble cutting oil. As the concentrate ratio decreases, the tap wear happens faster and problems of chip welding develop. There are various types of measuring devices to check the oil concentrate to water ratios, but I think that a hand held refractometer works best for an onsite inspection. Also if the cutting fluid spoils and becomes rancid or is contaminated, it should be replaced immediately.

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