METHODS FOR FORMING NEAR NET-SHAPE METAL PARTS FROM BINDERLESS METAL POWDER
First Claim
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1. A method for forming a near net-shape metal part, the method comprising:
- transporting a binderless metal powder mixture to a die cavity with ultrasonic energy;
introducing the binderless metal powder mixture into the die cavity; and
compacting the binderless metal powder mixture within the die cavity with ultrasonic energy to form a green part within the die cavity;
wherein the binderless metal powder mixture consists essentially of metal particles.
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Abstract
Methods for forming near net-shape metal parts include transporting a binderless metal powder mixture to a die cavity with ultrasonic energy, introducing the binderless metal powder mixture into the die cavity, and compacting the binderless metal powder mixture within the die cavity with ultrasonic energy to form a green part within the die cavity. The binderless metal powder mixture includes essentially no plastic or binder, and may consist essentially of 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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20 Claims
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1. A method for forming a near net-shape metal part, the method comprising:
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transporting a binderless metal powder mixture to a die cavity with ultrasonic energy; introducing the binderless metal powder mixture into the die cavity; and compacting the binderless metal powder mixture within the die cavity with ultrasonic energy to form a green part within the die cavity; wherein the binderless metal powder mixture consists essentially of metal particles. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method for forming a sintered near net-shape metal part, the method comprising:
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transporting a binderless metal powder mixture to a die cavity of a mold die with ultrasonic energy; introducing the binderless metal powder mixture into the die cavity; compacting the binderless metal powder mixture 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 mixture includes essentially no plastic or binder. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification