公开(公告)号：US11298792B2

公开(公告)日：2022-04-12

申请号：US16462222

申请日：2017-11-24

Applicant: HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY

Inventor： Haiou Zhang ,  Guilan Wang ,  Huayu Zhang

IPC: B33Y10/00 ,  B29C44/36 ,  B24B19/22 ,  B22F3/24 ,  B28B1/32 ,  B22F10/40

Abstract: A combined additive manufacturing method applicable to parts and molds relates to moldless-growth manufacturing of parts and molds, which includes steps of: S1: layering and slicing a three-dimensional CAD (computer-aided design) model of a workpiece to be formed according to shape, thickness and dimensional accuracy requirements of the workpiece, so as to obtain a plurality of layered slice data; S2: planning a forming path according to the layered slice data, and generating layered slice numerical control codes for forming; and S3: deposition-forming a powder material on a substrate layer-by-layer and performing pressure forming or milling forming according to the layered slice numerical control codes in the step S2, which uses a numerically controlled high-speed cold spray gun to spray the powder material to a determined position for deposition-forming. The method of the present invention overcomes thermally induced adverse effects of hot processing and drawbacks of cold spray deposition.

公开(公告)号：US20190329374A1

公开(公告)日：2019-10-31

申请号：US16462222

申请日：2017-11-24

Applicant: HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY

Inventor： Haiou Zhang ,  Guilan Wang ,  Huayu Zhang

IPC: B24B19/22 ,  B33Y10/00

Abstract: A combined additive manufacturing method applicable to parts and molds relates to moldless-growth manufacturing of parts and molds, which includes steps of: S1: layering and slicing a three-dimensional CAD (computer-aided design) model of a workpiece to be formed according to shape, thickness and dimensional accuracy requirements of the workpiece, so as to obtain a plurality of layered slice data; S2: planning a forming path according to the layered slice data, and generating layered slice numerical control codes for forming; and S3: deposition-forming a powder material on a substrate layer-by-layer and performing pressure forming or milling forming according to the layered slice numerical control codes in the step S2, which uses a numerically controlled high-speed cold spray gun to spray the powder material to a determined position for deposition-forming. The method of the present invention overcomes thermally induced adverse effects of hot processing and drawbacks of cold spray deposition.

公开(公告)号：US20230072565A1

公开(公告)日：2023-03-09

申请号：US17823620

申请日：2022-08-31

Applicant: Huazhong University of Science and Technology

Inventor： Hai'ou Zhang ,  Kai Wang ,  Fusheng Dai ,  Xushan Zhao ,  Runsheng Li ,  Jun Wu ,  Haitao Yang ,  Huayu Zhang

IPC: B22F10/22 ,  B22F12/00 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y40/00 ,  B21D22/14

Abstract: Wire arc additive manufacturing-spinning combined machining device and method are provided. The machining device includes a spinning mechanism and a fused deposition modeling mechanism. The spinning mechanism includes a machine tool and a spinning head. The spinning head is installed on the machine tool by a main shaft, and the main shaft is configured to drive the spinning head to rotate to achieve the movement in three vertical directions. The spinning head includes a spinning base and balls. Each of the balls is installed in a corresponding one of arc grooves at a bottom of the spinning base. The fused deposition modeling mechanism includes a moving track, a robot and a heat source generator. The arc moving track is arranged around the machine tool in a surrounding mode. The robot is movably installed on the moving track. The heat source generator is installed at a tail end of the robot.