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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 11707778 B1

PDFFull Text
Date of Patent:
Jul. 25, 2023

Filed:

Nov. 07, 2018

Method and apparatus for manufacturing equiaxed crystal aluminum alloy cast ingot by using additive manufacturing and rapid solidification techniques

Applicant:

Shanghai Jiaotong University, Shanghai, CN;

Inventors:

Jiao Zhang, Shanghai, CN;

Baode Sun, Shanghai, CN;

Qing Dong, Shanghai, CN;

Assignee:

SHANGHAI JIAOTONG UNIVERSITY, Shanghai, CN;

Attorney:

Hogan Lovells US LLP

Primary Examiner:

Kevin E Yoon

Int. Cl.
CPC ...
B22D 23/00 (2006.01); B22D 21/00 (2006.01); B33Y 10/00 (2015.01); B22D 7/06 (2006.01); B22D 21/04 (2006.01); B22D 27/04 (2006.01); B22D 27/15 (2006.01); B22D 41/015 (2006.01); B22D 41/08 (2006.01); B22F 10/22 (2021.01); B22F 12/10 (2021.01); B22F 12/53 (2021.01); B22F 12/70 (2021.01); B22F 10/32 (2021.01);
U.S. Cl.
CPC ...
B22D 23/003 (2013.01); B22D 7/06 (2013.01); B22D 21/007 (2013.01); B22D 21/04 (2013.01); B22D 27/04 (2013.01); B22D 27/15 (2013.01); B22D 41/015 (2013.01); B22D 41/08 (2013.01); B22F 10/22 (2021.01); B22F 12/10 (2021.01); B22F 12/53 (2021.01); B22F 12/70 (2021.01); B33Y 10/00 (2014.12); B22F 10/32 (2021.01);
Abstract

A method and apparatus for manufacturing an equiaxed crystal aluminum alloy cast ingot by using additive manufacturing and rapid solidification techniques are provided. The apparatus comprises: a metal heating mechanism and a negative pressure cooling mechanism. The metal heating mechanism is located above the negative pressure cooling mechanism and is connected thereto by a nozzle. The negative pressure cooling mechanism comprises a vacuum chamber having an air inlet hole and an air outlet hole, and a three-dimensional moving ingot mechanism disposed inside the vacuum chamber. The three-dimensional moving ingot mechanism comprises a moving ingot and a two-dimensional moving platform vertically connected to the moving ingot. A water cooling mechanism is disposed outside the moving ingot, and the moving ingot is driven by a precision motor to precisely move up and down.

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