Method of manufacturing an article using pressurizing gas
AssigneeGM Global Technology Operations LLC
InventorsLiang Wang, Qigui Wang, Daniel J Wilson
Life of this patent
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Abstract
A method for additive manufacturing of an article using pressurizing gas in an enclosure including introducing additive manufacturing equipment into the enclosure before sealing and removing air from the sealed enclosure to obtain a predetermined oxygen threshold. Next, the sealed enclosure is pressurized to obtain a predetermined pressure threshold using an inert gas. When the predetermined pressure threshold is obtained, the article is constructed using additive manufacturing.
Claims17
A method for additive manufacturing (AM) of an article using pressurizing gas in an enclosure comprising:
- introducing additive manufacturing equipment into the enclosure before sealing;
- removing air from the sealed enclosure to obtain a predetermined oxygen threshold;
- injecting pressurized inert gas into the sealed enclosure to obtain a predetermined pressure threshold;
- and
- constructing the article using additive manufacturing when the sealed enclosure obtains the predetermined pressure threshold.
A method for additive manufacturing (AM) of an article using pressurizing gas in a vacuum chamber comprising:
- introducing additive manufacturing equipment into the vacuum chamber before sealing;
- removing air from the vacuum chamber to obtain a predetermined oxygen threshold;
- injecting pressurized inert gas into the vacuum chamber to obtain a predetermined pressure threshold;
- and
- constructing the article using additive manufacturing when the vacuum chamber obtains the predetermined pressure threshold.
Dependencies are inferred from the claim text.