公开(公告)号：US20190193154A1

公开(公告)日：2019-06-27

申请号：US15850330

申请日：2017-12-21

Applicant: Delavan Inc.

Inventor： Thomas J. Ocken ,  Lukas Shea ,  Jerry Logsdon ,  Joseph Samo

IPC: B22F3/105 ,  B22F3/10 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y40/00

CPC classification number: B22F3/1055 ,  B22F3/1007 ,  B22F3/1017 ,  B22F3/105 ,  B22F2003/1056 ,  B22F2003/1059 ,  B22F2201/10 ,  B22F2201/20 ,  B22F2203/03 ,  B22F2998/10 ,  B22F2999/00 ,  B29C64/153 ,  B29C64/343 ,  B29C64/357 ,  B29C64/371 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y40/00 ,  B22F1/0011

Abstract: A method of additive manufacturing includes supplying additive manufacturing powder to a build area of an additive manufacturing machine. The method includes fusing a portion of the powder to form a part, and removing a non-fused portion of the powder from the build area into a removable vessel for storing non-fused powder after building a part. The method can include supplying additive manufacturing powder to a build area, fusing a portion of the powder, and removing a non-fused portion of the powder all on a single discrete lot of additive manufacturing powder without mixing lots.

公开(公告)号：US20190001410A1

公开(公告)日：2019-01-03

申请号：US16103009

申请日：2018-08-14

Applicant: PRINT-RITE • UNICORN IMAGE PRODUCTS CO., LTD. OF ZHUHAI

Inventor： Leungmui HO ,  Kinkeung SO ,  Yonggang HE

IPC: B22F3/00 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y70/00 ,  B22F1/00

CPC classification number: B22F3/008 ,  B22F1/0059 ,  B22F1/0062 ,  B22F3/1055 ,  B22F3/227 ,  B22F2003/1056 ,  B22F2201/10 ,  B22F2201/20 ,  B22F2999/00 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y40/00 ,  B33Y70/00

Abstract: A metal three-dimensional printer, a printing method, and a three-dimensional printing material. The three-dimensional printer includes a printing head, a heating apparatus, a printing platform, and a sintering shaping chamber. The printing method includes a preliminary shaping step and a sintering step. The heating apparatus heats the three-dimensional printing material. A heating temperature of the heating apparatus is 50° C. to 300° C., and a binder bonds metal powder at 50° C. to 300° C., and the three-dimensional printing material is extruded onto the printing platform to form a preliminary cured object. In the sintering step, the preliminary cured object is sintered and cured into a shaped object.

公开(公告)号：US20180366247A1

公开(公告)日：2018-12-20

申请号：US15627517

申请日：2017-06-20

Applicant: FORD GLOBAL TECHNOLOGIES, LLC

Inventor： WANFENG LI

IPC: H01F1/055 ,  B22F9/04 ,  B22F3/16 ,  C22C22/00 ,  C22C1/04

CPC classification number: H01F1/0557 ,  B22F3/02 ,  B22F3/1017 ,  B22F3/16 ,  B22F3/162 ,  B22F9/04 ,  B22F2009/043 ,  B22F2009/044 ,  B22F2201/10 ,  B22F2998/10 ,  C22C1/04 ,  C22C1/0491 ,  C22C22/00 ,  C22C2202/02 ,  H01F1/086

Abstract: A method comprising sintering a Mn and Bi powder compact at a first temperature for a first predetermined duration, based on the first temperature, and sintering the compact at a second temperature, less than the first temperature, for a second predetermined duration, greater than the first duration, is disclosed. The sintering at a first temperature for a first predetermined duration generates a predetermined MnBi LTP transition driving force to decrease a formation energy barrier for transition to MnBi LTP. Sintering the compact at the second temperature for the second predetermined duration forms a magnet containing the MnBi LTP.

公开(公告)号：US20180347036A1

公开(公告)日：2018-12-06

申请号：US16047663

申请日：2018-07-27

Applicant: Delavan Inc.

Inventor： Ying She ,  Michael A. Klecka ,  Tahany Ibrahim El-Wardany ,  Anais Espinal ,  Wayde R. Schmidt ,  Sameh Dardona

IPC: C23C16/442 ,  H01B1/22 ,  B01J3/00 ,  B01J8/18 ,  C09D183/04 ,  C23C14/12

CPC classification number: C23C16/442 ,  B01J3/00 ,  B01J8/1827 ,  B01J8/1836 ,  B01J2208/00061 ,  B01J2208/0053 ,  B22F3/008 ,  B22F2998/10 ,  B22F2999/00 ,  B33Y70/00 ,  C09D183/04 ,  C23C14/12 ,  H01B1/22 ,  B22F9/22 ,  B22F2201/01 ,  B22F1/0062 ,  B22F2201/10 ,  B22F2202/17

Abstract: A particulate for an additive manufacturing technique includes metallic particulate bodies with exterior surfaces bearing a polymeric coating. The polymeric coating is conformally disposed over the exterior surface that prevents the underlying metallic body from oxidation upon exposure to the ambient environment by isolating the metallic particulate bodies from the ambient environment. Feedstock materials for additive manufacturing techniques, and methods of making such feedstock, are also disclosed.

公开(公告)号：US10016839B1

公开(公告)日：2018-07-10

申请号：US15797359

申请日：2017-10-30

Applicant: King Fahd University of Petroleum and Minerals

Inventor： Zafar Iqbal ,  Abdelrahman N. Shuaib ,  Necar Merah ,  Nouari Saheb

IPC: B02C4/00 ,  B23K20/12 ,  C22C27/04 ,  B22F9/14 ,  B22F9/04 ,  B23K103/04

CPC classification number: B23K20/1255 ,  B22F9/04 ,  B22F9/14 ,  B22F2005/002 ,  B22F2009/043 ,  B22F2998/10 ,  B22F2999/00 ,  B23K2103/04 ,  C22C1/045 ,  C22C1/1084 ,  C22C27/04 ,  C22C32/0052 ,  C22C2200/04 ,  B22F3/20 ,  B22F3/105 ,  B22F2201/10

Abstract: A friction stir welding tool comprising a composite of a tungsten-rhenium alloy and hafnium carbide particles, wherein a crystallite size of the tungsten-rhenium alloy is no more than 100 nm, wherein the hafnium carbide particles are dispersed within the tungsten-rhenium alloy, a method of fabricating the friction stir welding tool, and a method of friction stir welding a metal joint using the tool. Various embodiments of the friction stir welding tool, the method of fabricating the tool, and the method of friction stir welding using the tool are provided.

公开(公告)号：US09926197B2

公开(公告)日：2018-03-27

申请号：US15132070

申请日：2016-04-18

Applicant: Bo Liu ,  Hongjie Qiu

Inventor： Bo Liu ,  Hongjie Qiu

IPC: B22F9/02 ,  C01B6/24 ,  B22F9/08 ,  C01B6/00 ,  C01B9/00 ,  C01B13/32 ,  C01B17/20 ,  C01B21/06

CPC classification number: C01B6/24 ,  B22F9/08 ,  B22F2009/0824 ,  B22F2999/00 ,  C01B6/00 ,  C01B9/00 ,  C01B13/326 ,  C01B17/20 ,  C01B21/06 ,  C01B21/0602 ,  B22F2201/10

Abstract: A gas atomization apparatus is disclosed for producing high purity fine refractory compound powders. After the system reaches high vacuum, a first stage inert atomizing gas breaks superheated metal melt into droplets and a second stage reactive atomizing gas breaks the droplets further into ultrafine droplets while reacts with them to form refractory compound powders. The first stage atomizing gas is inert gas able to break up melt into droplets and prevent crust formation on the nozzle front. A reaction time enhancer is arranged at bottom of reaction chamber to furnish a reactive gas flow in a reverse direction of the falling droplets and powders. Under the reverse gas flow, the falling droplets and powders change moving direction and travel longer distance in reaction chamber to increase reaction time. This apparatus can produce refractory powders with ultrahigh purity and uniform powder size while maintain high process energy efficiency.

公开(公告)号：US20180056398A1

公开(公告)日：2018-03-01

申请号：US15556619

申请日：2016-03-08

Applicant: CENTRAL SOUTH UNIVERSITY

Inventor： Zuming LIU ,  Pengfei SU ,  Boyun HUANG ,  Qinglong DUAN ,  Mengmei MA ,  Yang GUO ,  Shiqi CHEN

IPC: B22F9/04 ,  B02C17/20 ,  B02C25/00

CPC classification number: B22F9/04 ,  B02C17/20 ,  B02C25/00 ,  B22F2009/043 ,  B22F2998/10 ,  B22F2999/00 ,  C22C1/0433 ,  C22C19/056 ,  B22F9/082 ,  B22F2201/10

Abstract: The invention relates to a method for eliminating hollow defects in atomized superalloy powder, and pertains to the field of powder metallurgy materials. A ball-milling processing is conducted on the atomized alloy powder to eliminate the hollow defect, obtain solid powder and increase powder utilization efficiency. By controlling mill ball diameters, mass ratio of mill balls with different diameters, mass ratio of ball to powder and ball milling time, a multi-directional impact on the powder is achieved, thereby control powder shape and obtain solid spherical powder. The invention eliminates powder hollow defect by using ball milling process and equipment. This invention with high powder utilization efficiency, short ball milling time and simple operating process, can be used for large-scale preparation and application.

公开(公告)号：US20180025819A1

公开(公告)日：2018-01-25

申请号：US15550818

申请日：2016-02-16

Applicant: HITACHI METALS, LTD.

Inventor： Yasutaka SHIGEMOTO ,  Takeshi NISHIUCHI ,  Futoshi KUNIYOSHI ,  Noriyuki NOZAWA

IPC: H01F1/057 ,  B22F1/00 ,  C22C28/00 ,  H01F41/02 ,  C22C38/06 ,  C22C38/02 ,  C22C38/04 ,  B22F3/24 ,  C22C38/00

CPC classification number: H01F1/0577 ,  B22F1/0011 ,  B22F3/24 ,  B22F2998/10 ,  B22F2999/00 ,  C22C28/00 ,  C22C38/002 ,  C22C38/005 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C2202/02 ,  H01F41/0266 ,  H01F41/0293 ,  B22F3/02 ,  B22F2202/05 ,  B22F9/04 ,  B22F3/10 ,  B22F2003/248 ,  B22F2201/10 ,  B22F2201/20

Abstract: A step of providing an R1-T1-X (where R1 is mainly Nd; T1 is mainly Fe; and X is mainly B) based sintered alloy compact mainly characterized by a molar ratio of [T1]/[X] being 13.0 or more; a step or providing an R2-Ga—Cu (where R2 is mainly Pr and/or Nd and accounts for not less than 65 mol % and not more than 95 mol %; and [Cu]/([Ga]+[Cu]) is not less than 0.1 and not more than 0.9 by mole ratio) based alloy; and a step of, while allowing at least a portion of a surface of the R1-T1-X based sintered alloy compact to be in contact with at least a portion of the R2-Ga—Cu based alloy, performing a heat treatment at a temperature which is not less than 450° C. and not more than 600° C.

公开(公告)号：US20170334099A1

公开(公告)日：2017-11-23

申请号：US15599535

申请日：2017-05-19

Applicant: Sodick Co., Ltd.

Inventor： Ichiro ARAIE ,  Shuji OKAZAKI

IPC: B29C35/08 ,  C04B35/64 ,  B22F3/10 ,  B22F3/105

CPC classification number: B29C35/0805 ,  B22F3/1017 ,  B22F3/1055 ,  B22F2003/1056 ,  B22F2003/1057 ,  B22F2999/00 ,  B29C64/153 ,  B29C64/268 ,  B29C2035/0833 ,  B29C2035/0838 ,  B33Y30/00 ,  B33Y50/02 ,  C04B35/64 ,  Y02P10/295 ,  B22F2203/00 ,  B22F2202/11 ,  B22F2201/10

Abstract: A lamination molding apparatus including a chamber covering a molding region; a laser beam source to emit a laser beam for sintering a material powder supplied on the molding region to form a sintered layer; and a scan unit to scan the laser beam. The laser beam has one or more spot shapes including at least an elongated shape, and the scan unit is configured to scan the laser beam, of which the spot shape is an elongated shape, in a lateral direction of the elongated shape, is provided.

公开(公告)号：US09764448B2

公开(公告)日：2017-09-19

申请号：US12084923

申请日：2006-09-25

Applicant: Evgeny Aleksandrovich Levashov ,  Vladimir Alekseevich Andreev ,  Viktoriya Vladimirovna Kurbatkina

Inventor： Evgeny Aleksandrovich Levashov ,  Vladimir Alekseevich Andreev ,  Viktoriya Vladimirovna Kurbatkina

IPC: B22F1/00 ,  B24D3/06 ,  C22C33/02 ,  C22C32/00

CPC classification number: B24D3/06 ,  B22F2998/00 ,  C22C32/00 ,  C22C33/0257 ,  B22F3/14 ,  B22F2202/06 ,  B22F2201/10 ,  C22C26/00

Abstract: This invention relates to powder metallurgy, more specifically, to methods of fabricating hard alloy items. The invention can be used as an iron, cobalt or nickel base binder for the fabrication of diamond cutting tools for the construction industry and stone cutting, including segmented cutting discs of different designs and wires for reinforced concrete and asphalt cutting used in the renovation of highway pavements, runways in airports, upgrading of metallurgical plants, nuclear power plants, bridges and other structures, monolithic reinforced concrete cutting drills, as well as discs and wires for the quarry production of natural stone and large scale manufacturing of facing construction materials. This invention achieves the objective of providing binders for the fabrication of diamond tools having higher wear resistance without a significant increase in the sintering temperature, as well as higher hardness, strength and impact toughness. The achievement of these objectives by adding an iron group metal as the main component of the binder composition and alloying additives in the form of nanosized powder in accordance with this invention is illustrated with several examples of different type binders for the fabrication of diamond tools.