Formulation of springback and machine setting parameters for multi-pass three-roller cone frustum bending with change of flexural modulus

Gandhi, Anish H.; Shaikh, A. A.; Raval, Harit K.

doi:10.1007/s12289-008-0390-8

Cited by 21 publications

(9 citation statements)

References 22 publications

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“…In the light of the reason for twist, the deflection resulting in the twist can be reduced by reducing the variable parameters P and s D that reflected in Equation (1). On the premise of no slipping in the actual rolling bending process, the resultant force P is often calculated according to the material properties and set as small as possible to prevent the material from being damaged due to excessive resultant force [19]. According to Equation (1), the twist defects can be inhibited by reducing the distance between the upper roll and the side roll.…”

Section: Analysis Of Twist Defectsmentioning

confidence: 99%

Analysis and Control of Twist Defects of Aluminum Profiles with Large Z-Section in Roll Bending Process

Wang

Xue

Bayraktar

et al. 2019

Metals

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This paper focuses on the twist defects and the control strategy in the process of four-roll bending for aluminum alloy Z-section profiles with large cross-section. A 3D finite element model (3D-FEM) of roll bending process has been developed, on the premise of the curvature radius of the profile, the particularly pronounced twist defects characteristic of 7075-O aluminum alloy Z-section profiles were studied by FE method. The simulation results showed that the effective control of the twist defects of the profile could be realized by adjusting the side roller so that the exit guide roll was higher than the entrance one (the side rolls presented an asymmetric loading mode with respect to the main rolls) and increasing the radius of upper roll. Corresponding experimental tests were carried out to verify the accuracy of the numerical analysis. The experimental results indicated that control strategies based on finite element analysis (FEA) had a significant inhibitory function on twist defects in the actual roll bending process.

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Section: Analysis Of Twist Defectsmentioning

confidence: 99%

Analysis and Control of Twist Defects of Aluminum Profiles with Large Z-Section in Roll Bending Process

Wang

Xue

Bayraktar

et al. 2019

Metals

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“…H. Gandhi et al [6] discussed the formulation of spring back and machine setting parameters for continuous multi pass bending of cone frustum on three roller bending machine. Effect of change of flexural modulus during the deformation on spring back prediction is analyzed.…”

Section: IImentioning

confidence: 99%

Identification of Parameters to Evaluate Roller Bending Process: A Review

Thakar¹

2018

IJRASET

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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.

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“…Modern manufacturing lines (of Haeusler AG) include roller forming mill, roller device for bending of edges, welding-assembling mill for preparing of strip for welding, welding section, expander for making the final profile of the tube. All manufacturing schemes include elastic-plastic bending of the billet [6][7][8][9][10][11]. 3-roller bending process using Haeusler AG equipment with modern automation tools and counter-bending allows manufacturing tubes of 12.5 m length.…”

Section: Introductionmentioning

confidence: 99%

Modelling of the sheet forming while 3-roller bending process

Zhigulev¹,

Skripalenko²,

Fadeev³

et al. 2022

cisisr

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3-roller bending process was investigated using physical modelling and computer simulation. Main technological parameters influence on the formation of tube billet diameter are present; these main technological parameters are upper roller displacement and distance between axes of bearing rollers. Complete factorial experiment was conducted using bending machine, radius of the produced tube billet was set as response function. Conditions for conducting the complete factorial experiment using bending machine and techniques of tube billet radius estimation by graphical-analytical method are presented. At that least square method and SolidWorks software were applied. Regression equations for calculating tube billet diameter conditionally upper roller displacement and distance between axes of bearing rollers were obtained. Influence of these two factors on tube billet radius formation was demonstrated. Finite element method (FEM) computer simulation of the forming process was done with respect to parameters corresponding to parameters of physical modelling experiment using bending machine. FEM computer simulation was done using QForm software. QForm simulation was realized for elastic-plastic bending in terms of two-dimensional deformation. Point tracking was applied to calculate coordinates of the points of the formed sheet and bending parameters. It allowed estimation of the neutral line location in the formed sheet when bending stage was finished. Presented results of computer simulation are figures with trajectories of the tracked points; figures illustrating changing of distance between tracked points; graph of accumulated strain changing through sheet's thickness. New criterion for neutral line (neutral surface) was proposed for sheet bending process. Results of the research can be effective when exploring Heausler AG bending equipment.

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Formulation of springback and machine setting parameters for multi-pass three-roller cone frustum bending with change of flexural modulus

Cited by 21 publications

References 22 publications

Analysis and Control of Twist Defects of Aluminum Profiles with Large Z-Section in Roll Bending Process

Analysis and Control of Twist Defects of Aluminum Profiles with Large Z-Section in Roll Bending Process

Identification of Parameters to Evaluate Roller Bending Process: A Review

Modelling of the sheet forming while 3-roller bending process

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