Powdered metal compacting

a technology of powdered metal and compacting, which is applied in the field of powdered metal compacting, can solve the problems of difficult manufacturing large components from mixed powders, limited dimensions of components that can be manufactured from mixed powders, and inability to meet the requirements of high-pressure manufacturing,

Inactive Publication Date: 2017-03-09
CATERPILLAR INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Benefits of technology

[0005]In one aspect of the present disclosure, a method of making an object from powdered metal is provided. The method includes feeding the powdered metal into a first end of a die, and rotating the die to pull a first portion of the powdered metal into a pressing zone. The method further includes pressing the first porti

Problems solved by technology

This causes non-uniform pressing of the mixed powders which leads to a difference in density that can occur in different parts of the resulting component.
Due to such inconsistency in the density of components, manufacturing large components from mixed powders poses a diff

Method used

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Embodiment Construction

[0011]Reference will now be made in detail to specific embodiments or features, examples of which are illustrated in the accompanying drawings. Wherever possible, corresponding or similar reference numbers will be used throughout the drawings to refer to the same or corresponding parts.

[0012]FIG. 1 illustrates a schematic view of a system 100 for compacting powdered metal, according to an embodiment of the present disclosure. In the present embodiment, the system 100 is configured to manufacture a ring gear. The system 100 may include a feeder 102, a die 104, and a roller 106. The feeder 102 may feed the powdered metal 108 to a pressing zone 110 between the die 104 and the roller 106 for the pressing operation.

[0013]The powdered metal 108 may be, for example, of any conventional or known powdered metal formulation. The powdered metal 108 may include a single alloyed or unalloyed metallurgical powder or a blend of one or more such powders. In one example, the powdered metal 108 may i...

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Abstract

A system and a method of making an object from powdered metal are provided. The method includes feeding the powdered metal into a first end of a die. The die is rotated to pull a first portion of the powdered metal into a pressing zone. The first portion of the powdered metal is pressed using high pressure. The die is further rotated to release the first portion of the powdered metal from a second end of the die. A second portion of the powdered metal is then pulled into the first end of the die.

Description

TECHNICAL FIELD[0001]The present disclosure relates to compacting of powdered metal, and more particularly relates to a system and a method for compacting powdered metal.BACKGROUND[0002]Powder metallurgy has been gaining widespread popularity in the realm of manufacturing processes. Powder metallurgy is a highly developed method of manufacturing precision metal components, and can be understood as a methodology that produces components from metallic powders. Usually, powder metallurgy includes mixing metal powders, compacting or pressing the mixed powders in a die, and sintering the compacted powder for bonding the particles of the compacted powder.[0003]The process of compacting or pressing the mixed powders into a geometrical form is commonly referred to as powder pressing. Generally, the mixed powders are pressed in a press-type machine by using a punch-and-die arrangement at room temperature. In the punch and die arrangement, pressure applied by a press on powders is not focused...

Claims

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Application Information

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IPC IPC(8): B22F3/12B22F3/00B22F3/24B22F3/06B22F3/17
CPCB22F3/12B22F3/06B22F2003/247B22F3/24B22F3/004B22F3/17B22F3/03B22F2003/145B22F2005/004B22F2998/10B22F3/10B22F5/003
Inventor BIRKY, ZACHARY S.
Owner CATERPILLAR INC
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