Modeling and simulation of asymmetrical three-roll bending process

Feng, Zhengkun; Champliaud, Henri

doi:10.1016/j.simpat.2011.05.006

Cited by 39 publications

(25 citation statements)

References 9 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Desired curvature radii are generated by varying the distance between bottom rollers and position of top roller and results are validated with experimental and numerical model. Zhengkun Feng et al [23][24][25] presented a numerical model based on finite element method for a non -kinematical roll bending process with cylindrical rolls and model is then simulated to get desired cone with geometrical differences in cone angle, top and bottom radii. …”

Section: IImentioning

confidence: 99%

Identification of Parameters to Evaluate Roller Bending Process: A Review

Thakar¹

2018

IJRASET

View full text Add to dashboard Cite

This paper describes a comprehensive review of major published research work performed on three as well as four roller bending process. Based on the literature, further research scope is identified. The present literature reveals that there is a further scope to model the three roller bending process in a generalized and simplest form includes various parameters viz geometrical, process, and material parameters, which will help to produce sheet metal parts to precise shape with smooth surface finish and good dimensional accuracy.

show abstract

Section: IImentioning

confidence: 99%

Identification of Parameters to Evaluate Roller Bending Process: A Review

Thakar¹

2018

IJRASET

View full text Add to dashboard Cite

show abstract

“…The radius R of a formed cylindrical shape depends on the position of the lateral roll [19] and can be expressed in Eq. (1):…”

Section: Asymmetrical Roll-bending Machine and Flat Areas Definitionmentioning

confidence: 99%

“…[13][14][15]. Zeng et al [16], Feng et al [17][18][19] and Tran et al [20][21][22][23][24] developed FE (finite element) models using Ansys/LS-Dyna to simulate the three-roll-bending process. However, an analysis of the flat lengths that remain at both ends of the final shape has not been addressed.…”

Section: Introduction mentioning

confidence: 99%

FE Study for Reducing Forming Forces and Flat End Areas of Cylindrical Shapes Obtained by the Roll-Bending Process

Tran¹,

Champliaud²,

Feng³

et al. 2014

JMEA

View full text Add to dashboard Cite

A roll-bending process that minimizes the flat areas on the leading and trailing ends of formed plates will produce more accurate and easier assemble final shapes. There are several methods of minimizing flat areas, but they are costly or difficult to apply for thick plates. This study proposes a new, simple approach that reduces these flat areas. This approach includes moving the bottom roll slightly along the feeding direction and adjusting the bottom roll location. Sensitivity analyses were performed using a developed 3D dynamic FE (finite element) model of an asymmetrical roll-bending process in the Ansys/LS-Dyna software package. Simulations were validated by experiments run on an instrumented roll-bending machine. The FE results indicate that this new approach not only minimizes the flat areas but also reduces the forming forces.

show abstract

“…Gandhi et al [5] investigated the effect of the top roller relative position in the Y direction on the final diameter of cylindrical section in a symmetrical 3-roller system using both analytical and experimental methods. On the other hand, Feng and Champliaud [6] studied the effect of the lateral roller (Roller 3) position in an asymmetrical system using both FEM and experimental methods. However, most above-mentioned studies focus on the external response, such as bending moment, responding force and final diameter of formed section.…”

Section: Introductionmentioning

confidence: 99%

Stress and Springback Analyses of API X70 Pipeline Steel Under 3-Roller Bending via Finite Element Method

Zhao

Liao

Kompotiatis³

2016

Acta Metall. Sin. (Engl. Lett.)

View full text Add to dashboard Cite

3-Roller bending is a widely applied manufacturing process, particularly in structural steel pipe industry. However, due to the difficulty and high cost of measuring stress distribution inside sheet material via traditional method, internal stress/strain response during forming is largely unexplored. The focuses of this study are two: (1) to map the radii of curvature as well as the stress inside the work piece during forming by utilizing the meshing mechanism of finite element method, and (2) to further provide some numeric guidelines for the configuration of the rolling system in order to improve production efficiency and product quality. The results of this study indicate that: (1) it is crucial to properly choose forming parameter in order to produce product with desired radii; (2) much like a gradual springback process, the radii of curvature gradually increase from the top roller to the exit-side bottom roller; (3) under the assumptions made in this study, to produce pipes with a specified diameter with varying configurations of the 3-roller system will not significantly change the final residual stress; and (4) finally, shifting of the neutral axis up to 2.0% of the thickness toward the compressing side during the forming process is observed.

show abstract

Modeling and simulation of asymmetrical three-roll bending process

Cited by 39 publications

References 9 publications

Identification of Parameters to Evaluate Roller Bending Process: A Review

Identification of Parameters to Evaluate Roller Bending Process: A Review

FE Study for Reducing Forming Forces and Flat End Areas of Cylindrical Shapes Obtained by the Roll-Bending Process

Stress and Springback Analyses of API X70 Pipeline Steel Under 3-Roller Bending via Finite Element Method

Contact Info

Product

Resources

About