Discussion
A cutting fluid in machining serves chiefly to
Answer: A
Correct answer: cool the tool and lubricate the chip interface
A cutting fluid does two things at once, and both are needed: it removes the heat generated at the cutting zone, which preserves the tool’s hardness, and it lubricates the sliding contact between the chip and the tool face, which reduces the heat generated in the first place. It also flushes the chips away.
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