Addman Intermediate Holdings, LLC (20240269745). METHODS FOR IN SITU FORMATION OF DISPERSOIDS STRENGTHENED REFRACTORY ALLOY IN 3D PRINTING AND ADDITIVE MANUFACTURING simplified abstract

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METHODS FOR IN SITU FORMATION OF DISPERSOIDS STRENGTHENED REFRACTORY ALLOY IN 3D PRINTING AND ADDITIVE MANUFACTURING

Organization Name

Addman Intermediate Holdings, LLC

Inventor(s)

Youping Gao of Thousand Oaks CA (US)

METHODS FOR IN SITU FORMATION OF DISPERSOIDS STRENGTHENED REFRACTORY ALLOY IN 3D PRINTING AND ADDITIVE MANUFACTURING - A simplified explanation of the abstract

This abstract first appeared for US patent application 20240269745 titled 'METHODS FOR IN SITU FORMATION OF DISPERSOIDS STRENGTHENED REFRACTORY ALLOY IN 3D PRINTING AND ADDITIVE MANUFACTURING

The patent application describes methods of fabricating objects using additive manufacturing with pretreated powders.

  • Pretreated powders are used to create in situ dispersoids within the object, increasing oxygen content to between 500 ppm and 3000 ppm or nitrogen content to between 250 ppm and 1500 ppm.
  • The pretreated powders are formed into layers in an environmentally controlled chamber of an additive manufacturing machine.
  • Refractory alloy powder is partially pretreated by exposure to the atmosphere or an inert atmosphere with oxygen and/or nitrogen, then further pretreated to raise oxygen and/or nitrogen levels.
  • The layers of pretreated powder are exposed to an energy source for melting and solidifying, creating in situ dispersoids in the layers.
  • Carbon dioxide is introduced into an inert atmosphere chamber with hafnium powder to create hafnium carbide dispersoids throughout the object.
      1. Potential Applications:

- Aerospace industry for lightweight, high-strength components - Medical field for customized implants - Automotive sector for complex parts with improved properties

      1. Problems Solved:

- Enhancing oxygen and nitrogen content in objects - Creating in situ dispersoids for improved material properties - Controlling atmosphere during additive manufacturing process

      1. Benefits:

- Increased strength and durability of fabricated objects - Customization of material properties for specific applications - Enhanced performance in extreme conditions

      1. Commercial Applications:
        1. Title: Advanced Additive Manufacturing for High-Performance Components

The technology can be used in aerospace, medical, and automotive industries for producing complex, high-quality parts with tailored material properties. This innovation opens up opportunities for creating innovative products with superior performance characteristics.

      1. Questions about Additive Manufacturing with Pretreated Powders:

1. How does the introduction of carbon dioxide in the inert atmosphere chamber contribute to creating hafnium carbide dispersoids? 2. What are the advantages of using in situ dispersoids in additive manufacturing processes?

      1. Frequently Updated Research:

Ongoing research focuses on optimizing the pretreatment process of powders to achieve specific material properties and exploring new applications in various industries. Stay updated on the latest advancements in additive manufacturing with pretreated powders for cutting-edge innovations.


Original Abstract Submitted

methods of fabricating objects using additive manufacturing are provided using pretreated powders. in a first aspect, the methods create in situ dispersoids within the object to increase the oxygen content to between 500 ppm and 3000 ppm or to increase the nitrogen content to between 250 ppm and 1500 ppm. the pretreated powders are then formed into layers in an environmentally controlled chamber of an additive manufacturing machine. the quantity of refractory alloy powder is partially pretreated by exposure to the atmosphere for a selected period of time or in an inert atmosphere having oxygen and/or nitrogen introduced thereinto. the partially pretreated quantity of powder is then further pretreated in an inert atmosphere controlled chamber to raise the oxygen and/or nitrogen level to between about 250 ppm and 1000 ppm for nitrogen and between about 500 ppm and 2000 ppm for oxygen. the layers of pretreated powder are then exposed to a transient moving energy source or stationary energy source for melting and solidifying the layers; and creating in situ dispersoids in the layers. in a second aspect, carbon dioxide is introduced into an inert atmosphere controlled chamber having hafnium powder therein for creating hafnium carbide dispersoids throughout the object.

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