Cutting fluids:
It serves the purposes of coolant as well as lubricant. The cutting fluids are used in metal machining operations. The function of cutting fluid is to
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Flushing away the chips from work piece or job
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It cools the tool and the work piece.
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To decrease the friction between the tool and work piece. It also increases the tool life.
Characteristics of a good cutting fluid:
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It should have high flash point.
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It should provide the lubrication between work piece and tool.
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It should have anti corrosion constituents.
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It should carry away the heat generated during the process.
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It should be non toxic, nonflammable and transparent.
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It should have a long life.
Types of cutting fluids:
Soluble oils – It consists of mineral oil and emulsifier.
Semi-synthetic oils – It consists of both mineral oils and synthetic chemicals.
Synthetic oils – It contains synthetic chemicals.
Straight cutting oils – These are petroleum based mineral oils.