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US 5,706,684 AGranted
Metalworking process
AssigneeCincinnati Milacron Inc.
InventorsDeli Gong, Kevin H. Tucker
Life of this patent
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AssigneeCincinnati Milacron Inc.
InventorsDeli Gong, Kevin H. Tucker
Estimating the term…
There is provided a metalworking process, such as for example a punching process, wherein a shaping tool (eg. punch) contacts and applies a non-chip forming shaping force to a metallic workpiece (eg. blank) and there is supplied to the interface between the shaping tool and the metallic workpiece an aqueous fluid composition, having an alkaline pH, comprising water, a tall oil fatty acid, sulfurized lard oil, a sulfurized olefin, an oxyethylene/oxypropylene random or block copolymer diol having an average molecular weight in the range of from about 1000 to 8000 and an organic phosphate ester such as for example poly (1,2-ethanediyl) alpha-isodecyl-omega hydroxy phosphate. Reduced forces, lower friction and improved tool life are observed.
A metalworking process comprising the steps of contacting a metallic workpiece with a tool for mechanically shaping the workpiece, applying a mechanical force to the workpiece with said tool and supplying to the interface between the workpiece and the tool an aqueous fluid composition, having an alkaline pH, comprising water, at least 1.0% by weight, based on the total fluid, of a fatty acid, a sulfurized oil having sulfur to sulfur bonds, at least 0.5% by weight, based on the total fluid, of an oxyethylene/oxypropylene block or random copolymer having at least one terminal hydroxyl group and an average molecular weight of from about 1000 to 8000 and poly(oxy-1,2-ethanediyl) alpha-isodecyl-omega hydroxy phosphate wherein the aqueous fluid composition contains at least 0.4% by weight of chemically bound sulfur based on the total fluid.
Dependencies are inferred from the claim text.