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Multi-point forming springback compensation control of two-dimensional hull plate

Multi-point forming springback compensation control of two-dimensional hull plate
Multi-point forming springback compensation control of two-dimensional hull plate
Springback is always a technical problem in sheet metal forming. In this paper, the rapid springback compensation control of two-dimensional hull plate is realized by theoretical calculation and numerical simulation. For the cylindrical shell, according to the bending forming theory of medium and thick plates, the total elastic-plastic bending moment is established, and the curvature change before and after springback is deduced. The curvature correction coefficient is determined by the precise numerical simulation technology. At the same time, the validity of the method is verified by cold bending experiment. For the shell with variable curvature, it is divided into several cylindrical surfaces according to the curvature gradient of its geometric section line. The compensation curvature array is obtained by the correction compensation algorithm of spring back curvature of cylindrical plate, and the algorithm is verified by numerical simulation. The results show that the method is very close to the expected results. Thus, the efficiency and precision of forming will be improved, and the foundation of digitization of sheet metal forming is established.
springback compensation, surface reconstruction, numerical simulation, two-dimensional shell, forming theory
1687-8132
1-12
Su, Shaojuan
8d90b64e-8e08-49de-beae-f9d76ccdd4c3
Jiang, Yuchao
5bae9213-6042-41f6-ab14-a498895112ff
Xiong, Yeping
51be8714-186e-4d2f-8e03-f44c428a4a49
Su, Shaojuan
8d90b64e-8e08-49de-beae-f9d76ccdd4c3
Jiang, Yuchao
5bae9213-6042-41f6-ab14-a498895112ff
Xiong, Yeping
51be8714-186e-4d2f-8e03-f44c428a4a49

Su, Shaojuan, Jiang, Yuchao and Xiong, Yeping (2020) Multi-point forming springback compensation control of two-dimensional hull plate. Advances in Mechanical Engineering, 12 (4), 1-12. (doi:10.1177/1687814020916094).

Record type: Article

Abstract

Springback is always a technical problem in sheet metal forming. In this paper, the rapid springback compensation control of two-dimensional hull plate is realized by theoretical calculation and numerical simulation. For the cylindrical shell, according to the bending forming theory of medium and thick plates, the total elastic-plastic bending moment is established, and the curvature change before and after springback is deduced. The curvature correction coefficient is determined by the precise numerical simulation technology. At the same time, the validity of the method is verified by cold bending experiment. For the shell with variable curvature, it is divided into several cylindrical surfaces according to the curvature gradient of its geometric section line. The compensation curvature array is obtained by the correction compensation algorithm of spring back curvature of cylindrical plate, and the algorithm is verified by numerical simulation. The results show that the method is very close to the expected results. Thus, the efficiency and precision of forming will be improved, and the foundation of digitization of sheet metal forming is established.

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Adv in Mech Eng Accepted manuscript Su & Xiong - Accepted Manuscript
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1687814020916094 - Version of Record
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More information

Accepted/In Press date: 19 February 2020
e-pub ahead of print date: 20 April 2020
Published date: April 2020
Keywords: springback compensation, surface reconstruction, numerical simulation, two-dimensional shell, forming theory

Identifiers

Local EPrints ID: 439101
URI: http://eprints.soton.ac.uk/id/eprint/439101
ISSN: 1687-8132
PURE UUID: 80e21aca-2dc4-4d72-87da-635b0dd057d7
ORCID for Yeping Xiong: ORCID iD orcid.org/0000-0002-0135-8464

Catalogue record

Date deposited: 03 Apr 2020 16:30
Last modified: 07 Oct 2020 01:45

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