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 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.