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US 10,207,312 B2Granted
Lubrication processes for enhanced forgeability
AssigneeATI Properties, Inc.
InventorsScott Oppenheimer, Robin M. Forbes Jones, John Mantione, Ramesh Minisandram, Jean-Philippe Thomas
Life of this patent
Estimating the term…
Abstract
Forge lubrication processes are disclosed. A solid lubricant sheet is placed between a workpiece and a die in a forging apparatus. Force is applied to the workpiece with the die to plastically deform the workpiece. The solid lubricant sheet decreases the shear factor for the forging system and reduces the incidence of die-locking.
Claims20
A forge lubrication process comprising:
- heating a die in a forging apparatus;
- positioning a solid lubricant sheet between a metal or alloy workpiece and the heated die in the forging apparatus, wherein the solid lubricant sheet consists of at least one solid-state lubricant material and, optionally, ash, wherein the at least one solid-state lubricant material is selected from the group consisting of graphite, molybdenum disulfide, and tungsten disulfide;
- and
- applying force to the workpiece with the die to plastically deform the workpiece in air and at a workpiece temperature greater than 1000° F., wherein a shear factor between the die and the workpiece during deformation is less than 0.50.
1 more element
A forge lubrication process comprising:
- heating a die in a forging apparatus;
- positioning a solid lubricant sheet, the solid lubricant sheet consisting of a graphite sheet, between a workpiece and the heated die in the forging apparatus, the workpiece comprising titanium, a titanium alloy, zirconium, or a zirconium alloy;
- and
- applying force to the workpiece to plastically deform the workpiece with the die in air,
- wherein the workpiece is at a temperature in the range of 1000° F. to 2000° F. during deformation, and a shear factor between the die and the workpiece during deformation is less than 0.50.
2 more elements
Dependencies are inferred from the claim text.