|発明の名称||LUBRICANT AND METAL PROCESSING METHOD USING THE SAME|
PROBLEM TO BE SOLVED: To provide a lubricant requiring no special processing to tools, inexpensive and also having reduced loads given to the environment, and a metal processing method using the same.
SOLUTION: Provided is a lubricant fed into a mist shape to a working point (a part at which a processing object and a tool are contacted) when a metallic material is processed, is made of water and a surfactant and having a contact angle smaller than 30°. Further, provided is a metal processing method characterized in that the lubricant is fed, to the working point, in the ratio of 4 to 12 [cc/h] in the cutting of aluminum or an aluminum alloy and is fed in the ratio of 22 to 48 [cc/h] in the cutting of iron or an iron steel material.
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