NEAR-ZERO EXPANSION LATTICE METAL BASED ON ADDITIVE MANUFACTURING, AND PREPARATION METHOD AND USE THEREFOR

Title:

NEAR-ZERO EXPANSION LATTICE METAL BASED ON ADDITIVE MANUFACTURING, AND PREPARATION METHOD AND USE THEREFOR

Document Type and Number:

WIPO Patent Application WO/2023/066414

Kind Code:

A3

Abstract:

A near-zero expansion lattice metal based on additive manufacturing, and a preparation method and use therefor, belonging to the technical field of additive manufacturing of lattice metals. The lattice metal has a three-dimensional bimetal lattice structure. The lattice metal is formed by expanding bimetal lattice cells. Each bimetallic lattice cell is of a three-dimensional structure having a truss structure embedded in a hexahedron, and has the capability of expanding in three spacial directions. A transition area is arranged at a connection position of the hexahedron and the truss structure, and the contour of the transition area is not larger than a pore-strut diameter of the cell. The hexahedron is a metal, and the truss structure is another metal. The transition area is a mixture of the two metals, and the ratio of linear expansion coefficients of the two metals is not lower than 5. Interfaces of the two metals are metallurgically bonded without gaps. The present solution uses same-format cooperative printing, and multiple cylinders control the laser coaxial powder feeding process to prepare the wide-temperature-range near-zero expansion lattice metal from Invar and Nitinol powders. The lattice metal is used for preparing a thermally stable structural component for serving in extreme environments in the field of aerospace.

More Like This:

JP6958289	Aggregate of titanium sponge and its manufacturing method
JP2024016102	Processing equipment and processing methods, processing methods, and modeling equipment and modeling methods
JP2023507928	heat resistant aluminum powder material

Inventors:

WEI YANPENG (CN)
YU BO (CN)
CHENG JINGCHANG (CN)
SHI JIAN (CN)
MA YINGCHUN (CN)
GAO PENG (CN)
MIAO ZHIQUAN (CN)
GUAN SHUWEN (CN)
WANG JINGCHENG (CN)

Application Number:

PCT/CN2023/071013

Publication Date:

September 07, 2023

Filing Date:

January 06, 2023

Export Citation:

Click for automatic bibliography generation Help

Assignee:

SHENYANG RES INSTITUTE OF FOUNDRY CO LTD (CN)

International Classes:

B22F10/38; B22F10/25; B22F10/64

Domestic Patent References:

WO2021227539A1

2021-11-18

Foreign References:

CN115351298A	2022-11-18
US20210020263A1	2021-01-21
US20160027425A1	2016-01-28
CN105772723A	2016-07-20
CN106599420A	2017-04-26
CN108284938A	2018-07-17
US20210379883A1	2021-12-09

Attorney, Agent or Firm:

SHENYANG CHENCHUANG TECHNICAL PATENT AGENT LTD. (CN)

Download PDF:

View/Download PDF PDF Help

Previous Patent: DMP PROTEIN, AND CODING GENE AND USE THEREOF

Next Patent: COMPOSITE OPTICAL FIBER FOR HOLOGRAPHIC ENDOSCOPY