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公开(公告)号：US10576524B1
公开(公告)日：2020-03-03
申请号：US16537382
申请日：2019-08-09
Inventor： Shijian Yuan , Zhubin He , Xiaobo Fan , Yanli Lin , Guofeng Wang , Chang Qi
Abstract: The present invention provides a die capable of achieving rapid forming and quenching therein. The die includes an upper die, a blank holder and a lower die, where the upper die is composed of an internal solid die core and a thin-walled skin. Grooves in communication with each other are disposed between the internal solid die core and the thin-walled skin. In a forming stage, the grooves are not filled or filled with a heat insulating material such as a gas; and in a quenching stage, a low-temperature medium is introduced into the grooves. The die can be used to achieve rapid forming and quenching of metal materials of different types and thicknesses.
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公开(公告)号：US11413675B2
公开(公告)日：2022-08-16
申请号：US16937660
申请日：2020-07-24
Applicant: DALIAN UNIVERSITY OF TECHNOLOGY
Inventor： Zhubin He , Yanan Li , Yanli Lin , Xinyu Hu , Linwei Leng , Shijian Yuan
IPC: B21D26/041 , B21D26/045 , B21D26/049
Abstract: A method and device for manufacturing a large-sized thin-walled tubular part by gas-liquid internal high pressure forming (IHPF). A gas and a liquid are filled at a certain volume ratio into a thin-walled blank. The pressure of the gas-liquid mixed fluid is mainly determined by the gas pressure. During the deformation of the thin-walled blank, due to a large compression ratio of the gas, the gas-liquid pressure will not basically change with the change of the volume of a blank cavity. A support pressure on the cavity of the thin-walled blank is stable in the entire forming process. In addition, even if there is a slight leakage of the liquid or gas during the forming process, the medium pressure inside the blank will not fluctuate largely. In this way, embodiments lower the requirements for the sealing effect during the tubular part forming process.
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公开(公告)号：US11207732B2
公开(公告)日：2021-12-28
申请号：US16938648
申请日：2020-07-24
Applicant: DALIAN UNIVERSITY OF TECHNOLOGY
Inventor： Zhubin He , Jiangkai Liang , Yi Xu , Wei Du , Yanli Lin , Kailun Zheng , Peng Lin , Gang Liu , Shijian Yuan
Abstract: An integrated method for manufacturing a high-temperature resistant thin-walled component by preforming by laying a metal foil strip. The integrated manufacturing method includes: designing a preform, preparing a support die, determining a thickness of a foil strip, determining a width of the foil strip, developing a laying process, laying an A foil strip and a B foil strip, obtaining an AB laminated preform, bulging the preform, performing a reactive synthesis and a densification process of a bulged component, and performing a subsequent treatment of the thin-walled component. Various embodiments obtain an integral thin-walled preform with a complex structure, a uniform wall thickness and a shape close to the final part by continuously laying a metal foil strip with an appropriate width.
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公开(公告)号：US20210213528A1
公开(公告)日：2021-07-15
申请号：US16938648
申请日：2020-07-24
Applicant: DALIAN UNIVERSITY OF TECHNOLOGY
Inventor： Zhubin He , Jiangkai Liang , Yi Xu , Wei Du , Yanli Lin , Kailun Zheng , Peng Lin , Gang Liu , Shijian Yuan
Abstract: The present invention discloses an integrated method for manufacturing a high-temperature resistant thin-walled component by preforming by laying a metal foil strip. The integrated manufacturing method includes: designing a preform, preparing a support die, determining a thickness of a foil strip, determining a width of the foil strip, developing a laying process, laying an A foil strip and a B foil strip, obtaining an AB laminated preform, bulging the preform, performing a reactive synthesis and a densification process of a bulged component, and performing a subsequent treatment of the thin-walled component. The present invention obtains an integral thin-walled preform with a complex structure, a uniform wall thickness and a shape close to the final part by continuously laying a metal foil strip with an appropriate width. The present invention does not need to weld the thin-walled preform, and thus solves the problem of weak comprehensive performance of a weld zone in the conventional method of preparing, rolling and welding a laminated sheet into a cylinder. In addition, the present invention reduces a subsequent bulging deformation, avoiding local bulging, thinning and cracking, undercuts at the parting during die closing, and wrinkles due to uneven distribution of materials in each zone.
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