公开(公告)号：US11780160B2

公开(公告)日：2023-10-10

申请号：US17337863

申请日：2021-06-03

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Anil K Sachdev ,  Frederick E Pinkerton ,  Raja K Mishra ,  Tyson W Brown

IPC: B29C64/153 ,  H01F1/03 ,  B29C64/268 ,  B33Y70/00 ,  B22F10/28 ,  B22F10/38 ,  B22F10/50 ,  B33Y80/00 ,  C01B21/06 ,  B22F12/70 ,  B22F10/32 ,  B22F10/62

CPC classification number: B29C64/153 ,  B22F10/28 ,  B22F10/38 ,  B22F10/50 ,  B29C64/268 ,  B33Y70/00 ,  H01F1/0311 ,  B22F10/32 ,  B22F10/62 ,  B22F12/70 ,  B33Y80/00 ,  C01B21/0622

Abstract: A three-dimensional object may be manufactured using a powder bed fusion additive manufacturing technique. A layer of powder feed material may be distributed over a solid substrate and scanned with a high-energy laser beam to locally melt selective regions of the layer and form a pool of molten feed material. The pool of molten feed material may be exposed to gaseous nitrogen, carbon, or boron to respectively dissolve nitride, carbide, or boride ions into the pool of molten feed material to produce a molten nitrogen, carbon, or boron-containing solution. The molten nitrogen, carbon, or boron-containing solution may cool and solidify into a solid layer of fused nitride, carbide, or boride-containing material.

公开(公告)号：US20210296027A1

公开(公告)日：2021-09-23

申请号：US17337863

申请日：2021-06-03

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Anil K Sachdev ,  Frederick E Pinkerton ,  Raja K Mishra ,  Tyson W Brown

IPC: H01F1/03 ,  B29C64/268

Abstract: A three-dimensional object may be manufactured using a powder bed fusion additive manufacturing technique. A layer of powder feed material may be distributed over a solid substrate and scanned with a high-energy laser beam to locally melt selective regions of the layer and form a pool of molten feed material. The pool of molten feed material may be exposed to gaseous nitrogen, carbon, or boron to respectively dissolve nitride, carbide, or boride ions into the pool of molten feed material to produce a molten nitrogen, carbon, or boron-containing solution. The molten nitrogen, carbon, or boron-containing solution may cool and solidify into a solid layer of fused nitride, carbide, or boride-containing material.