WHAT MAKES A COOLANT GREEN? by ProQuest

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Metalcutting fluids are ubiquitous in machining, and almost every manufacturing professional has seen advertisements for "green" metalcutting fluids. Suppliers to manufacturers insist that environmentally responsible coolants and lubricants can function just as well as conventional products, without requiring extensive modification of the equipment now operating on your shop floor. There are no real limitations to the types of operations green fluids can be used for, according to Unist Inc, but results may vary. For example, the company says that as far as Coolube 2210 is concerned, when it comes to general machining work, the key is the ability to apply it correctly, so that there is a protective layer of lubricant at the interface between the tooling and the workpiece. Hangsterfers' Missile Lube waterbased vegetable emulsion, its PC-Series pure vegetable oil, and the new S-700 series water-based vegetable semisynthetic are all green technologies targeted specifically to machining Inconel and titanium. At Cimcool Fluids, "green technology fluids" use plant-derived raw materials to replace mineral oil.

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