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.:
Date of Patent:
May. 06, 2025
Filed:
Jan. 07, 2022
Central Iron and Steel Research Institute, Beijing, CN;
Yanshan University, Qinhuangdao, CN;
Yong Li, Beijing, CN;
Zhiqing Lyu, Qinhuangdao, CN;
Bo Zhao, Beijing, CN;
Chunxu Wang, Beijing, CN;
Shun Han, Beijing, CN;
Le Zhan, Qinhuangdao, CN;
Jianxiong Liang, Beijing, CN;
Zhenbao Liu, Beijing, CN;
Changjun Wang, Beijing, CN;
CENTRAL IRON AND STEEL RESEARCH INSTITUTE, Beijing, CN;
YANSHAN UNIVERSITY, Hebei, CN;
Abstract
An electrically assisted forming process and device for a high-strength metal alloy thin-walled pipe includes a die sleeve, wiring terminals, a pulse power supply, a die seat, sealing baffle plates, a drawing die, and a cooling water circulation chamber. A process for forming a high-strength metal alloy thin-walled pipe includes first, graphite or fusible metal, i.e., an aluminum rod, is introduced into a high-strength metal alloy pipe to be drawn to fill the whole pipe; and then, pulse current is introduced into a plastic deformation area of the thin-walled pipe. A cooling device can be provided to achieve a good cooling effect. The thin-walled pipe with corresponding length is cut according to a production requirement after processing is completed, and annealing treatment is performed in a vacuum heat treatment furnace.