公开(公告)号：US11292057B2

公开(公告)日：2022-04-05

申请号：US16863199

申请日：2020-04-30

申请人： Dalian University of Technology

发明人： Zhubin He ,  Yi Xu ,  Jiangkai Liang ,  Wei Du ,  Peng Lin

IPC分类号： B22F10/00 ,  B21D26/041 ,  B21D26/049 ,  B33Y10/00 ,  B22F10/10

摘要： The present invention discloses a method for manufacturing a thin-walled metal component by three-dimensional (3D) printing and hot gas bulging. The present invention uses 3D printing to obtain a complex thin-walled preform, which reduces a deformation during subsequent hot gas bulging. The present invention avoids local bulging thinning and cracking, undercuts at the parting during die closing, and wrinkles due to the uneven distribution of cross-sectional materials, etc. The present invention obtains a high accuracy in the form and dimension through hot gas bulging. After a desired shape is obtained by hot gas bulging, a die is closed to keep the component under high temperature and high pressure for a period of time, so that a grain and a phase of the material are transformed to form a desired microstructure.

公开(公告)号：US11207732B2

公开(公告)日：2021-12-28

申请号：US16938648

申请日：2020-07-24

申请人： DALIAN UNIVERSITY OF TECHNOLOGY

发明人： Zhubin He ,  Jiangkai Liang ,  Yi Xu ,  Wei Du ,  Yanli Lin ,  Kailun Zheng ,  Peng Lin ,  Gang Liu ,  Shijian Yuan

IPC分类号： B22F7/04 ,  B22F3/10

摘要： 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.

公开(公告)号：US20210213528A1

公开(公告)日：2021-07-15

申请号：US16938648

申请日：2020-07-24

申请人： DALIAN UNIVERSITY OF TECHNOLOGY

发明人： Zhubin He ,  Jiangkai Liang ,  Yi Xu ,  Wei Du ,  Yanli Lin ,  Kailun Zheng ,  Peng Lin ,  Gang Liu ,  Shijian Yuan

IPC分类号： B22F7/04 ,  B22F3/10

摘要： 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.

公开(公告)号：US20210197261A1

公开(公告)日：2021-07-01

申请号：US16863199

申请日：2020-04-30

申请人： Dalian University of Technology

发明人： Zhubin He ,  Yi XU ,  Jiangkai Liang ,  Wei Du ,  Peng Lin

IPC分类号： B22F3/105 ,  B21D26/049 ,  B21D26/041

摘要： The present invention discloses a method for manufacturing a thin-walled metal component by three-dimensional (3D) printing and hot gas bulging. The present invention uses 3D printing to obtain a complex thin-walled preform, which reduces a deformation during subsequent hot gas bulging. The present invention avoids local bulging thinning and cracking, undercuts at the parting during die closing, and wrinkles due to the uneven distribution of cross-sectional materials, etc. The present invention obtains a high accuracy in the form and dimension through hot gas bulging. After a desired shape is obtained by hot gas bulging, a die is closed to keep the component under high temperature and high pressure for a period of time, so that a grain and a phase of the material are transformed to form a desired microstructure.