Analysis on forming load in continuous multi-point forming

The deformation of sheet metal in the continuous flexible forming (CFF) process is complex and the formed result is affected by many factors. In this paper, the finite element model of CFF was founded and the forming processes of spherical parts were simulated with the software ABAQUS. The interaction between transversal deformation and longitudinal deformation in the CFF process is analyzed. Based on results of numerical simulation and forming tests, the process parameters of CFF is revised, and formed surface is measured by three dimensional sensing system, the measured results indicate the precision of formed parts are satisfactory.

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“…Fig. 1 shows a device of CFF [5]. The flexible rolls are bendable, their curvatures can be adjusted by computer at a series control points.…”

Section: Basic Principle and Main Technology Parameters Of Continuous...mentioning

confidence: 99%

Numerical Simulation and Test Research of Continuous Flexible Forming Process for the Spherical Parts

Lan

Cai

2011

AMR

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“…In recent years, with the rapid development of ship manufacturing industry, aluminum alloy has gradually become an important material for ship parts [1,2], and aluminum alloy with excellent corrosion resistance will further improve the overall quality and service life of ships. As an efficient and flexible forming technology [3], multi-point forming disaggregates the traditional monolithic die into a series of tightly arranged, heightadjustable multi-point punch groups [4] as a way to accommodate parts of various shapes and sizes, and is particularly suitable for forming complex hyperbolic component.…”

Section: Introductionmentioning

confidence: 99%

Research on springback compensation for multi-point forming of corrosion-resistant aluminum alloy hyperbolic component

Shao

Wang²,

Wan

et al. 2023

Matéria (Rio J.)

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Springback is the reverse elastic deformation produced by the unloading process, which is a common phenomenon in the sheet metal stamping and forming process and affects the final forming accuracy of the part. Aiming at the problem of springback error in the multi-point forming process of hyperbolic component for ships, the springback phenomenon of hyperbolic component was studied by combining theoretical analysis, numerical simulation and forming test. The mechanical property parameters and stress-strain curves were obtained by tensile tests using a new corrosion-resistant aluminum alloy as the sheet material. The springback compensation method is introduced, the springback compensation formula based on surface curvature is derived, and the compensated mold surface is further corrected and fitted using the cubic B-sample method. The multi-point punch tooling was generated and modeled by the multi-point 3D modeling software MPFCAD and finite element software to simulate the multi-point forming and unloading springback process of the hyperbolic member. Multi-point forming tests were conducted on a multi-point forming press for corrosion-resistant aluminum alloy hyperbolic component, and the formed parts were checked for accuracy and error analysis by 3D scanning and GOM Inspect software. The results show that the springback compensation method used in this paper can effectively reduce the springback error in the multi-point forming process of corrosion-resistant aluminum alloy hyperbolic component, and the effect is very good.

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Analysis on forming load in continuous multi-point forming

Cited by 2 publications

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Numerical Simulation and Test Research of Continuous Flexible Forming Process for the Spherical Parts

Numerical Simulation and Test Research of Continuous Flexible Forming Process for the Spherical Parts

Research on springback compensation for multi-point forming of corrosion-resistant aluminum alloy hyperbolic component

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