Methods for forming near net-shape metal parts from binderless metal powder
First Claim
1. A method for forming a near net-shape metal part, the method comprising:
- introducing binderless metal powder into a die cavity; and
compacting the binderless metal powder within the die cavity to form a green part within the die cavity;
wherein the binderless metal powder includes spheroidal metal particles and angular metal particles, and wherein a weight percentage of the angular metal particles in the binderless metal powder is greater than 50%.
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Accused Products
Abstract
Systems and methods for forming near net-shape metal parts from binderless metal powder are disclosed. Systems include a mold die that defines a die cavity and may include one or more ultrasonic transducers operatively coupled to the mold die. Systems may be configured to introduce binderless metal powder into a die cavity and/or to compact the binderless metal powder within the die cavity. Methods include introducing binderless metal powder into a die cavity of a mold die and compacting the binderless metal powder within the die cavity to form a green part within the die cavity. The binderless metal powder may include spheroidal metal particles and angular metal particles. The methods may further include separating the green part from the mold die and sintering the green part, after separating, to form a sintered near net-shape metal part.
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Citations
20 Claims
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1. A method for forming a near net-shape metal part, the method comprising:
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introducing binderless metal powder into a die cavity; and compacting the binderless metal powder within the die cavity to form a green part within the die cavity; wherein the binderless metal powder includes spheroidal metal particles and angular metal particles, and wherein a weight percentage of the angular metal particles in the binderless metal powder is greater than 50%. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 19)
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12. A method for forming a sintered near net-shape metal part, the method comprising:
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introducing binderless metal powder into a die cavity of a mold die; compacting the binderless metal powder within the die cavity by inducing ultrasonic vibrations in the mold die to form a green part within the die cavity; separating the green part from the mold die; and sintering, after the separating, the green part to form the sintered near net-shape metal part; wherein the binderless metal powder includes spheroidal metal particles and angular metal particles, and wherein a weight percentage of the angular metal particles in the binderless metal powder is greater than 50%. - View Dependent Claims (13, 14, 15, 16, 17, 18, 20)
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Specification