Tyson D Brown

US Patent:

20210296027, Sep 23, 2021

Filed:

Jun 3, 2021

Appl. No.:

17/337863

Inventors:

- Detroit MI, US
Frederick E Pinkerton - Warren MI, US
Raja K Mishra - Warren MI, US
Tyson W Brown - Royal Oak MI, US

Assignee:

GM GLOBAL TECHNOLOGY OPERATIONS LLC - Detroit MI

International Classification:

H01F 1/03
B29C 64/268

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.

US Patent:

20190348202, Nov 14, 2019

Filed:

May 11, 2018

Appl. No.:

15/977545

Inventors:

- Detroit MI, US
Frederick E. Pinkerton - Shelby Township MI, US
Raja K. Mishra - Shelby Township MI, US
Tyson W. Brown - Royal Oak MI, US

International Classification:

H01F 1/03
B29C 64/268

Abstract:

A three-dimensional object made of a bulk nitride, carbide, or boride-containing material 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. In one form, the three-dimensional object may comprise a permanent magnet made up of a plurality of solid layers of fused iron nitride material having a magnetic FeNphase.

US Patent:

20190291182, Sep 26, 2019

Filed:

Mar 23, 2018

Appl. No.:

15/934342

Inventors:

- DETROIT MI, US
Tyson W. Brown - Royal Oak MI, US
Anil K. Sachdev - Rochester Hills MI, US

International Classification:

B22F 3/105
B22F 1/00
C22C 21/02

Abstract:

A three-dimensional aluminum alloy part may be manufactured by a process in which a layer of aluminum alloy powder feed material is distributed over a substrate and scanned with a high-energy laser or electron beam in selective regions corresponding to a cross-section of the aluminum alloy part being formed. During the manufacturing process, the selective regions may melt and form a pool of molten aluminum alloy material. Thereafter, the pool of molten aluminum alloy material may cool and solidify into a solid layer of fused aluminum alloy material. During solidification of the pool of molten aluminum alloy material, solid phase particles may form within a solution of liquid phase aluminum prior to formation of solid phase aluminum dendrites. The resulting aluminum alloy part may exhibit a polycrystalline structure that predominantly includes a plurality of equiaxed grains, instead of columnar grains.

US Patent:

20190127828, May 2, 2019

Filed:

Oct 30, 2017

Appl. No.:

15/797034

Inventors:

- DETROIT MI, US
Anil K. Sachdev - Rochester Hills MI, US
Tyson W. Brown - Royal Oak MI, US

International Classification:

C22C 38/16
B22F 9/08
C21D 6/00
C22C 38/12
B33Y 10/00
B33Y 70/00
B23K 15/00
B23K 26/342

Abstract:

A powder material for an additive manufacturing process and a method of manufacturing a three-dimensional article via an additive manufacturing process. The powder material comprises an iron-based alloy including alloying elements of carbon (C) and copper (Cu). The iron-based alloy may be formulated to achieve a precipitation strengthened microstructure comprising a lath martensite matrix phase and a Cu precipitate phase. The iron-based alloy may have a Cu weight fraction and a nickel (Ni) weight fraction, and the Ni weight fraction may be less than the Cu weight fraction of the iron-based alloy.

US Patent:

20190115004, Apr 18, 2019

Filed:

Dec 7, 2018

Appl. No.:

16/213135

Inventors:

- Detroit MI, US
Raja K. Mishra - Shelby Township MI, US
Jon T. Carter - Farmington MI, US
Tyson W. Brown - Royal Oak MI, US
Blair E. Carlson - Ann Arbor MI, US
David R. Sigler - Shelby Township MI, US
Robert N. Saje - Shelby Township MI, US
Matthew P. Simonin - Ortonville MI, US

Assignee:

GM Global Technology Operations LLC - Detroit MI

International Classification:

G10K 11/168
B32B 15/01
B32B 27/08
B32B 27/32
B62D 25/04
B62D 25/10
B60R 13/08
B60R 7/06
B62D 21/00
F16M 13/02

Abstract:

A panel assembly is formed by a plurality of bonds between two sheet materials in a face to face relationship to form a preform. The plurality of bonds define a closed perimeter region between the two sheet materials and an open perimeter region between the two sheet materials. The preform may be formed into a predefined shape. Pressurized fluid is applied through an inlet into the open perimeter region to expand the preform. The pressurized fluid expands the open perimeter region such that the two sheet materials expand in an opposing direction, thereby defining an expanded open perimeter region. The closed perimeter region between the two sheet materials remains vacant of the pressurized fluid such that the closed perimeter region is not expanded. The expanded open perimeter region is filled with a filler material for improving a performance characteristic of the panel assembly, e.g., strength, sound absorption, or stiffness.

US Patent:

20170247774, Aug 31, 2017

Filed:

Feb 26, 2016

Appl. No.:

15/054913

Inventors:

- Detroit MI, US
Tyson W. Brown - Royal Oak MI, US

Assignee:

GM Global Technology Operations LLC - Detroit MI

International Classification:

C21D 9/00
C22F 1/06
C22F 1/04
C21D 1/42
C21D 1/40
B60J 5/04
B23K 26/38
B62D 29/00
B62D 25/04
B62D 25/06
B62D 25/10
C22F 1/18
C21D 1/34

Abstract:

Processes for forming blanks having tailored properties in localized areas are provided. The blanks are then formed into three-dimensionally shaped components (e.g., high-strength automotive parts). A sheet of high-strength metal alloy may be selectively heated in a first region to a temperature below a melting point of the metal alloy with a heat source, while a second region of the sheet adjacent to the first region remains unheated. The selective heating creates a first region of the metal alloy having at least one material property distinct from the second region. After the sheet is cut to form a blank, the blank comprises a portion of the first region and a portion of the second region. In this manner, a plurality of distinct tailored regions may be formed on each blank. The process may be continuous or semi-continuous and further include cutting of blanks from the sheet. High-strength structural components are also provided.

US Patent:

20170106625, Apr 20, 2017

Filed:

Aug 31, 2016

Appl. No.:

15/252878

Inventors:

- Detroit MI, US
Raja K. Mishra - Shelby Township MI, US
Jon T. Carter - Farmington MI, US
Tyson W. Brown - Royal Oak MI, US
Blair E. Carlson - Ann Arbor MI, US
David R. Sigler - Shelby Township MI, US
Robert N. Saje - Shelby Township MI, US
Matthew P. Simonin - Ortonville MI, US

Assignee:

GM GLOBAL TECHNOLOGY OPERATIONS LLC - Detroit MI

International Classification:

B32B 7/02
B60R 13/02
B32B 37/10

Abstract:

A panel assembly is formed by a plurality of bonds between two sheet materials in a face to face relationship to form a preform. The plurality of bonds define a closed perimeter region between the two sheet materials and an open perimeter region between the two sheet materials. The preform may be formed into a predefined shape. Pressurized fluid is applied through an inlet into the open perimeter region to expand the preform. The pressurized fluid expands the open perimeter region such that the two sheet materials expand in an opposing direction, thereby defining an expanded open perimeter region. The closed perimeter region between the two sheet materials remains vacant of the pressurized fluid such that the closed perimeter region is not expanded. The expanded open perimeter region is filled with a filler material for improving a performance characteristic of the panel assembly, e.g., strength, sound absorption, or stiffness.

US Patent:

20160145731, May 26, 2016

Filed:

Feb 20, 2015

Appl. No.:

14/627579

Inventors:

- Detroit MI, US
Tyson W. BROWN - Royal Oak MI, US

Assignee:

GM Global Technology Operations LLC - Detroit MI

International Classification:

C23C 2/28
C22C 38/04
C22C 38/02
C21D 8/00
C21D 6/00

Abstract:

Methods for press hardening galvanized, pre-treated, optionally non-annealed steel alloys are provided. The press-hardened steel alloy may have an ultimate tensile strength (UTS) of at least about 1,000 MPa and is substantially free of liquid metal embrittlement (LME). The press-hardened steel alloy may be further quenched to below room temperature. The press-hardened steel may have a multi-phase microstructure of ferrite at greater than or equal to about 1% to less than or equal to about 60% by volume and a combined volume percentage of martensite, retained austenite, and other transformation products at greater than or equal to about 40% to less than or equal to about 99%.