The main function of the lubricant is to reduce the tensile or compressive stresses required in metal forming.

The main function of the lubricant is to reduce the tensile or compressive stresses required in metal forming. Correct Answer False

The main function of the lubricant is to control the frictional force that arises due to sliding contact between the sheet metal and cutting tool material during sheet metal forming operation. Lubricants are also used to prevent galling problems by protecting tool material from direct contact with the sheet material.
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