Plastic article or earthenware shaping or treating: apparatus – Means for molding powdered metal
Patent
1979-05-18
1981-03-10
Flint, Jr., J. Howard
Plastic article or earthenware shaping or treating: apparatus
Means for molding powdered metal
425405H, 75201, B22F 302, B22F 314, B22F 704, B30B 1100
Patent
active
042551030
ABSTRACT:
An assembly and method for hot consolidating powder metal by heat and pressure in a container. The container is a mass of material substantially fully dense and incompressible with at least a portion which is capable of plastic flow at pressing temperatures and forming a closed cavity of a predetermined shape and volume for receiving a quantity of powder metal with the interior walls being movable to reduce the volume of the cavity for compacting powder metal into an article. A shaping insert is disposed in the cavity for defining a void in the article as the powder metal is compacted against the shaping insert. A force-responsive means allows relative movement between the shaping insert and at least a portion of the interior walls of the cavity as powder metal is compacted in response to a force reducing the volume of the cavity. In one embodiment the force-responsive means takes the form of a deformable projection extending from the shaping insert into a recess in the cavity whereby the projection will be deformed in response to a predetermined force to allow the shaping insert to move relative to the interior cavity walls. In another embodiment the shaping insert is supported by a press fit whereby the shaping insert is allowed to move in response to a predetermined compacting force. The force applied to the container may be applied by gas pressure in a gas autoclave or by pressing the container between the dies of a press while restraining the container to cause plastic flow of the container mass.
REFERENCES:
patent: 4085790 (1978-04-01), Withmoser
patent: 4097977 (1978-07-01), Pollner
patent: 4142888 (1979-03-01), Rosmus
Flint, Jr. J. Howard
Kelsey-Hayes Company
LandOfFree
Hot consolidation of powder metal-floating shaping inserts does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Hot consolidation of powder metal-floating shaping inserts, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hot consolidation of powder metal-floating shaping inserts will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1292079