Title:
SELF-RESISTIVE ELECTRIC HEATING SMART INCREMENTAL FORMING METHOD AND SYSTEM
Document Type and Number:
WIPO Patent Application WO/2022/089091
Kind Code:
A1
Abstract:
Provided are a self-resistive electric heating smart incremental forming method and system, the forming method comprising: step A: according to a spatial geometric variation of a region of contact between a forming tool and a sheet material in incremental forming, establishing a calculation model of the rate of change of volume of a deformed region; step B: according to the circuit features of the contact region in incremental forming with self-resistance electric heating, establishing a calculation model of the resistance and contact resistance of the material in such region; step C: establishing a calculation model of the instantaneous Joule heating between the forming tool and the contact region of the sheet material and the equivalent contact heat transfer coefficient; step D: substituting the described relevant parameters into a user subroutine ABAQUS-VUINTER to obtain a local deformation temperature value.
Inventors:
LU SHIHONG (CN)
LI QIANG (CN)
LOU PEIHUANG (CN)
LI ZHENGFANG (CN)
LI QIANG (CN)
LOU PEIHUANG (CN)
LI ZHENGFANG (CN)
Application Number:
PCT/CN2021/119197
Publication Date:
May 05, 2022
Filing Date:
September 18, 2021
Export Citation:
Assignee:
SUZHOU RES INSTITUTE OF NUAA (CN)
UNIV NANJING AERONAUTICS & ASTRONAUTICS (CN)
UNIV NANJING AERONAUTICS & ASTRONAUTICS (CN)
International Classes:
B21D31/00; B21D37/16; G06F30/17; G06F30/23; G06F111/10; G06F113/22; G06F119/08; G06F119/14
Domestic Patent References:
| WO2020168211A1 | 2020-08-20 |
Foreign References:
| CN112439834A | 2021-03-05 | |||
| CN111753452A | 2020-10-09 | |||
| CN111069439A | 2020-04-28 | |||
| CN107413917A | 2017-12-01 | |||
| CN101318203A | 2008-12-10 | |||
| CN208083219U | 2018-11-13 |
Attorney, Agent or Firm:
BEIJING HUIKEJIN INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)
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