US 11,654,479 B2
Composite equal additive manufacturing method
Hai'ou Zhang, Wuhan (CN); Jianwu Huang, Wuhan (CN); and Guilan Wang, Wuhan (CN)
Assigned to Huazhong University of Science and Technology, Hubei Province (CN)
Filed by HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY, Wuhan (CN)
Filed on Jan. 27, 2022, as Appl. No. 17/585,729.
Claims priority of application No. 202110115024.1 (CN), filed on Jan. 28, 2021.
Prior Publication US 2022/0234098 A1, Jul. 28, 2022
Int. Cl. B22D 11/00 (2006.01); B22D 23/00 (2006.01); B33Y 10/00 (2015.01); B33Y 40/20 (2020.01); C22B 9/18 (2006.01); B21B 1/46 (2006.01); B22D 11/04 (2006.01)
CPC B22D 23/003 (2013.01) [B21B 1/463 (2013.01); B22D 11/006 (2013.01); B22D 11/0406 (2013.01); B33Y 10/00 (2014.12); B33Y 40/20 (2020.01); C22B 9/18 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A composite equal additive manufacturing method, comprising the following steps:
S1, obtaining molten metal by using a metal smelting device;
S2, storing the molten metal flowing out from the metal smelting device in an intermediate container, and transferring the molten metal stored in the intermediate container into a crystallizer below through a gate when the molten metal flowing into the intermediate container meets a forming amount of a part to be formed;
S3, controlling the crystallizer to cool the molten metal from a liquid state to a solid-liquid mixed state, and enabling a blank body with a required section to flow out from an outlet of the crystallizer;
S4, arranging one or more pairs of plastic forming tools at a bottom of the outlet of the crystallizer, and performing hot machining on the blank body with fluidity by the one or more pairs of plastic forming tools;
S5, enabling the blank body after plastic forming to descend under an action of self gravity, wherein a chuck is used for clamping and fixing a lower end of a cooled and solidified blank body, and the blank body that is fixed descends along a guide sleeve on a machine frame;
S6, performing local machining or finishing on the blank body on the chuck after the plastic forming by using one or more point forming machines, and simultaneously, adjusting and controlling a temperature of a machining part by using a temperature control device, so as to obtain a formed part with a locally deformed structure; and
S7, after the formed part is formed, supporting the formed part by the chuck, enabling the formed part to descend to a bottom of the machine frame, and taking the formed part out from the machine frame.