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US 4,795,333 AGranted
Rotary forging
AssigneeNational Research Development Corporation
InventorPeter M. Standring
Life of this patent
Estimating the term…
Abstract
Rotary forging of a component from powder is accomplished in a single forging operation without any sintering or other processing by firstly pressing the powder in a closed die situation to produce an initial compressed form and then subjecting this compressed form to a rotary forging process.
Claims10
Apparatus for directly producing a component from loose powder by rotary forging including:
- first die means for holding a quantity of loose powder to be made into the component,
- second die means for pressing the quantity of loose powder in a closed die situation to produce an initial comprssed form, and
- means for tilting the second die means relative to the first die means to automatically sequentially subject the initial compressed form, while it is still held within said first die means to a rotary forging process which includes progressively tilting the axis of the first die means with respect to the axis of the second die means to produce a final component.
A method of producing a component from a loose powder mixture including the steps of:
- initially compressing the powder in a press between first and second die apparatus to achieve a low density component, and
- then subjecting the low density component to a rotary forging action, the steps being carried out sequentially in the same press and wherein an axis of the first die is progressively tilted with respect to an axis of the second die to achieve the rotary forging action.
Dependencies are inferred from the claim text.