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31.发明授权公开(公告)号：US11155907B2
公开(公告)日：2021-10-26
申请号：US15856543
申请日：2017-12-28
Applicant: California Institute of Technology
Inventor： Douglas C. Hofmann , Scott N. Roberts
IPC: C22C45/10
Abstract: Systems and methods in accordance with embodiments of the invention advantageously shape sheet materials that include metallic glass-based materials. In one embodiment, a method of shaping a sheet of material including a metallic glass-based material includes: heating a metallic glass-based material within a first region within a sheet of material to a temperature greater than the glass transition temperature of the metallic glass-based material; where the sheet of material has a thickness of between 0.1 mm and 10 mm; where at least some portion of the sheet of material does not include metallic glass-based material that is heated above its respective glass transition temperature when the metallic glass-based material within the first region is heated above its respective glass transition temperature; and deforming the metallic glass-based material within the first region while the temperature of the metallic glass-based material within the first region is greater than its respective glass transition temperature.
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公开(公告)号：US20210268585A1
公开(公告)日：2021-09-02
申请号：US17202092
申请日：2021-03-15
Applicant: California Institute of Technology
Inventor： Douglas C. Hofmann
Abstract: Ti-based metal matrix composites, methods of their additive manufacture, and parts manufactured therefrom and thereby are provided. Method include layer-by-layer additive manufacturing for fabricating Ti-based metal matrix composite parts thicker than 0.5 mm, in layers with thickness between 10-1000 micrometers. The parts formed may have one or more of the following properties: a tensile strength greater than 1 GPa, a fracture toughness greater than 40 MPa m1/2, a yield strength divided by the density greater than 200 MPa cm3/g, and a total strain to failure in a tension test greater than 5%.
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公开(公告)号：US20200284146A1
公开(公告)日：2020-09-10
申请号：US16813391
申请日：2020-03-09
Applicant: California Institute of Technology
Inventor： Christopher R. Yahnker , Mark S. Anderson , Douglas C. Hofmann , Morgan Hendry , Samad A. Firdosy , Andre M. Pate , Luis C.F. Tosi
IPC: E21B49/08 , G01N21/3563 , G01N33/24
Abstract: A cutting tool with a cutting region and a connecting support region where the support region is designed to connect to an external motor assembly. The cutting tool is also has a porous region that is integrated within a portion of the tool such that as the tool cuts material the porous region can allow samples of the cut material to permeate into an internal chamber of the tool. Once in the internal chamber material samples can be analyzed in-situ for direct composition analysis.
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公开(公告)号：US10151377B2
公开(公告)日：2018-12-11
申请号：US15062902
申请日：2016-03-07
Applicant: California Institute of Technology
Inventor： Douglas C. Hofmann , Brian H. Wilcox
Abstract: Systems and methods in accordance with embodiments of the invention implement tailored metallic glass-based strain wave gears and strain wave gear components. In one embodiment, a method of fabricating a flexspline of a strain wave gear includes: forming a MG-based composition into a flexspline using one of a thermoplastic forming technique and a casting technique; where the forming of the MG-based composition results in a formed MG-based material; where the formed flexspline is characterized by: a minimum thickness of greater than approximately 1 mm and a major diameter of less than approximately 4 inches.
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公开(公告)号：US20180339342A1
公开(公告)日：2018-11-29
申请号：US15991854
申请日：2018-05-29
Applicant: California Institute of Technology
Inventor： Douglas C. Hofmann
Abstract: Ti-based metal matrix composites, methods of their additive manufacture, and parts manufactured therefrom and thereby are provided. Method include layer-by-layer additive manufacturing for fabricating Ti-based metal matrix composite parts thicker than 0.5 mm, in layers with thickness between 10-1000 micrometers. The parts formed may have one or more of the following properties: a tensile strength greater than 1 GPa, a fracture toughness greater than 40 MPa m1/2, a yield strength divided by the density greater than 200 MPa cm3/g, and a total strain to failure in a tension test greater than 5%.
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Patent Agency Ranking
36.发明申请公开(公告)号：US20180257141A1
公开(公告)日：2018-09-13
申请号：US15918831
申请日：2018-03-12
Applicant: California Institute of Technology
Inventor： Douglas C. Hofmann , Andre M. Pate
IPC: B22F3/105 , F16H55/06 , B23F5/16 , B33Y10/00 , B33Y80/00 , B22F3/00 , B22F5/08 , B23K26/34 , B23K26/354
Abstract: Methods for the fabrication of metal strain wave gear flexsplines using a specialized metal additive manufacturing technique are provided. The method allows the entire flexspline to be metal printed, including all the components: the output surface with mating features, the thin wall of the cup, and the teeth integral to the flexspline. The flexspline may be used directly upon removal from the building tray.
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37.发明申请公开(公告)号：US20180119259A1
公开(公告)日：2018-05-03
申请号：US15856543
申请日：2017-12-28
Applicant: California Institute of Technology
Inventor： Douglas C. Hofmann , Scott N. Roberts
IPC: C22C45/10
CPC classification number: C22C45/10 , Y10T428/12479
Abstract: Systems and methods in accordance with embodiments of the invention advantageously shape sheet materials that include metallic glass-based materials. In one embodiment, a method of shaping a sheet of material including a metallic glass-based material includes: heating a metallic glass-based material within a first region within a sheet of material to a temperature greater than the glass transition temperature of the metallic glass-based material; where the sheet of material has a thickness of between 0.1 mm and 10 mm; where at least some portion of the sheet of material does not include metallic glass-based material that is heated above its respective glass transition temperature when the metallic glass-based material within the first region is heated above its respective glass transition temperature; and deforming the metallic glass-based material within the first region while the temperature of the metallic glass-based material within the first region is greater than its respective glass transition temperature.
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38.发明申请公开(公告)号：US20170144225A1
公开(公告)日：2017-05-25
申请号：US15424410
申请日：2017-02-03
Applicant: California Institute of Technology
Inventor： Douglas C. Hofmann
IPC: B22F3/115 , B33Y10/00 , B33Y70/00 , B33Y80/00 , B33Y40/00 , B32B15/20 , C23C4/10 , C23C4/134 , C23C4/131 , C23C4/129 , C22C45/00 , B32B15/01 , B22F3/10 , C23C4/06
CPC classification number: B22F3/115 , B22D23/003 , B22F3/1028 , B22F3/1055 , B22F2003/247 , B22F2301/052 , B22F2301/10 , B22F2301/15 , B22F2301/20 , B22F2301/25 , B22F2301/35 , B22F2998/10 , B32B15/01 , B32B15/20 , B33Y10/00 , B33Y40/00 , B33Y70/00 , B33Y80/00 , C22C33/003 , C22C45/00 , C22C45/001 , C22C45/003 , C22C45/02 , C22C45/04 , C22C45/08 , C22C45/10 , C22C2200/02 , C23C4/06 , C23C4/08 , C23C4/10 , C23C4/129 , C23C4/131 , C23C4/134 , C23C4/185 , Y02P10/295
Abstract: Systems and methods in accordance with embodiments of the invention fabricate objects including amorphous metals using techniques akin to additive manufacturing. In one embodiment, a method of fabricating an object that includes an amorphous metal includes: applying a first layer of molten metallic alloy to a surface; cooling the first layer of molten metallic alloy such that it solidifies and thereby forms a first layer including amorphous metal; subsequently applying at least one layer of molten metallic alloy onto a layer including amorphous metal; cooling each subsequently applied layer of molten metallic alloy such that it solidifies and thereby forms a layer including amorphous metal prior to the application of any adjacent layer of molten metallic alloy; where the aggregate of the solidified layers including amorphous metal forms a desired shape in the object to be fabricated; and removing at least the first layer including amorphous metal from the surface.
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公开(公告)号：US09610650B2
公开(公告)日：2017-04-04
申请号：US14259608
申请日：2014-04-23
Applicant: California Institute of Technology
Inventor： Douglas C. Hofmann , Scott N. Roberts
CPC classification number: B23K20/22 , B23K20/10 , B23K20/103
Abstract: Systems and methods in accordance with embodiments of the invention fabricate objects including metallic glass-based materials using ultrasonic welding. In one embodiment, a method of fabricating an object that includes a metallic glass-based material includes: ultrasonically welding at least one ribbon to a surface; where at least one ribbon that is ultrasonically welded to a surface has a thickness of less than approximately 150 μm; and where at least one ribbon that is ultrasonically welded to a surface includes a metallic glass-based material.
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40.发明授权Systems and methods for implementing bulk metallic glass-based strain wave gears and strain wave gear components 有权用于实施大块金属玻璃基应变波齿轮和应变波齿轮部件的系统和方法公开(公告)号：US09328813B2
公开(公告)日：2016-05-03
申请号：US14177608
申请日：2014-02-11
Applicant: California Institute of Technology
Inventor： Douglas C. Hofmann , Brian Wilcox
CPC classification number: F16H49/001 , B22D13/00 , B22D25/02 , B22D25/06 , C22C45/00 , F16H2049/003 , Y10T29/49467 , Y10T74/19642
Abstract: Bulk metallic glass-based strain wave gears and strain wave gear components. In one embodiment, a strain wave gear includes: a wave generator; a flexspline that itself includes a first set of gear teeth; and a circular spline that itself includes a second set of gear teeth; where at least one of the wave generator, the flexspline, and the circular spline, includes a bulk metallic glass-based material.
Abstract translation: 大量基于金属玻璃的应变波齿轮和应变波齿轮组件。 在一个实施例中，应变波齿轮包括：波发生器; 其本身包括第一组齿轮齿; 以及圆形花键，其本身包括第二组齿轮齿; 其中波发生器，柔性线和圆形花键中的至少一个包括块状金属玻璃基材料。
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