Title:
CONDUCTIVE CHANNEL-BASED ELECTROMAGNETIC FORMING APPARATUS AND FORMING METHOD
Document Type and Number:
WIPO Patent Application WO/2022/236849
Kind Code:
A1
Abstract:
An electromagnetic forming apparatus and forming method based on a conductive channel (3). The electromagnetic forming apparatus comprises a mold (5) and a conductive channel (3) provided on one side of the mold (5); the mold (5) comprises a left region, a right region and a middle concave region; the conductive channel (3) comprises first, second and third sub-conductive channels (3-1, 3-2, 3-3); the first and second sub-conductive channels (3-1, 3-2) are provided on the left region side of the mold (5) and the the right region side of the mold (5) respectively, and the third sub-conductive channel (3-3) is connected to the first and second sub-conductive channels (3-1, 3-2) to form an annular conductive channel (3) provided with a gap, and the direction of the gap is toward the middle concave region of the mold (5). The forming method comprises: a metal workpiece (2) is placed at the gap inside the conductive channel (3); the metal workpiece (2) and the conductive channel (3) form a conductive loop; a uniform pressure driving coil (1) is placed inside the conductive channel (3) and is placed above the metal workpiece (2); and a pulse current is fed into the uniform pressure driving coil (1) to drive the metal workpiece (2) to deform toward the middle concave region of the mold (5).
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Inventors:
LI LIANG (CN)
WANG ZIYE (CN)
LAI ZHIPENG (CN)
HAN XIAOTAO (CN)
CAO QUANLIANG (CN)
WANG ZIYE (CN)
LAI ZHIPENG (CN)
HAN XIAOTAO (CN)
CAO QUANLIANG (CN)
Application Number:
PCT/CN2021/094320
Publication Date:
November 17, 2022
Filing Date:
May 18, 2021
Export Citation:
Assignee:
UNIV HUAZHONG SCIENCE TECH (CN)
International Classes:
B21D26/14
Domestic Patent References:
| WO2005097372A2 | 2005-10-20 |
Foreign References:
| CN108856443B | 2019-08-09 | |||
| CN112275887A | 2021-01-29 | |||
| CN110560547A | 2019-12-13 |
Attorney, Agent or Firm:
WUHAN HUAZHIYU INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)
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