Optimization of forming steps in the incremental forming of twisted shapes using a line array roll set (LARS)

Shim, Do-Sik; Yang, Dong‐Yol; Chung, Sung-Wook; Han, Myoung-Soo

doi:10.1007/s12541-010-0084-2

Cited by 15 publications

(5 citation statements)

References 9 publications

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“…Reconfigurable multi point tools were employed to approximate the upper and lower solid dies. The line array roll set (LARS) was developed by Shim et al [175][176][177]. Each roll set can be moved in vertical direction as shown in Fig.…”

Section: Incremental Profile Forming By Flexible Roll Movementsmentioning

confidence: 99%

Flexibility in metal forming

et al. 2018

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Flexibility in metal forming is needed more than ever before due to rapidly changing customer demands. It paves the way for a better control of uncertainties in development and application of metal forming processes. Although flexibility has been pursued from various viewpoints in terms of machines, material, process, working environment and properties, etc., a thorough study of the concept was undertaken in order to with problems of manufacturing competiveness and tackle new challenges of manufacturing surroundings. Therefore, in this paper, flexibility in forming is reviewed from the viewpoints of process, material, manufacturing environment, new process combinations and machine-systemsoftware interactions.

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Section: Incremental Profile Forming By Flexible Roll Movementsmentioning

confidence: 99%

Flexibility in metal forming

et al. 2018

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“…Scholars have done a lot of research on roll forming. Shim et al [1] made a hypothesis of equal curvature at every point in the deformation zone during four-roll roll rounding, which provides theoretical support for four-roll roll rounding. Wu et al [1] established mathematical and FE model of four-roll roll bending, and the test results proved the reliability of the proposed mathematical model.…”

Section: Introductionmentioning

confidence: 99%

“…Shim et al [1] made a hypothesis of equal curvature at every point in the deformation zone during four-roll roll rounding, which provides theoretical support for four-roll roll rounding. Wu et al [1] established mathematical and FE model of four-roll roll bending, and the test results proved the reliability of the proposed mathematical model. Ktari et al [3] established a three-roll roll bending FE model based on the ABAQUS platform, the simulation results were consistent with the data obtained by using empirical formulas.…”

Section: Introductionmentioning

confidence: 99%

Influence Law of Different Factors on the Roll Forming Precision of Aluminum Alloy Cylinder with Variable Curvature Section

Li,

Song,

et al. 2023

Advances in Transdisciplinary Engineering

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High precision roll forming of cylinders with variable curvature section is a technical challenge for high-performance manufacturing of oil and gas transportation tanks. In this work, the large cylinder with variable curvature section was taken as the object of study, a four-roll roll bending FE (Finite Element) model of large cylinder with variable curvature section was established to investigate the influence of driving roll speed on the precision of cylinder forming quality, and the influence of adjacent arc segment size on the precision of cylinder roll forming was obtained by the segmental forming simulation of the cylinder. The results show that the forming radius increased sharply after the speed exceeded the threshold value and the main factors of roll forming radius error is the radius and length of the front arc, the radius and length of the middle arc, and the radius and length of the rear arc.

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“…The components used in automotive transmission systems are generally manufactured by machining process or various cold forming processes, such as deep drawing, forging, groove threading, upsetting, and ironing [ 3 , 4 , 5 , 6 , 7 ]. The machining process leads to a decrease in tooth strength of components because a grain flow is cut by a shaving and hobbing process [ 3 ].…”

Section: Introductionmentioning

confidence: 99%

Design of Multi-Stage Roll Die Forming Process for Drum Clutch with Artificial Neural Network

et al. 2020

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The multi-stage roll die forming (RDF) process is a plastic forming process that can manufacture a transmission part with a complex shape, such as a drum clutch, by using a die set with rotational rolls. However, it is difficult to satisfy dimensional accuracy because of spring-back and unfilling. The purpose of this study is to design a multi-stage RDF process for the manufacturing of a drum clutch to improve dimensional accuracy using an artificial neural network (ANN). Finite element (FE) simulation of the multi-stage RDF process is performed to predict the dimensional accuracy according to various clearances for each stage. Moreover, the ANN is used to determine the relationship between the clearance and dimensional accuracy of the drum clutch to reduce the number of FE simulation. The results of the FE simulation and ANN are used to determine the optimal clearance for each stage of the RDF process. Finally, the drum clutch is fabricated using the determined conditions. The experimental results are in good agreement with the results of FE simulation from the aspect of outer diameter, inner diameter, thickness of outer tooth, thickness of inner tooth, and face thickness of tooth.

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Optimization of forming steps in the incremental forming of twisted shapes using a line array roll set (LARS)

Cited by 15 publications

References 9 publications

Flexibility in metal forming

Flexibility in metal forming

Influence Law of Different Factors on the Roll Forming Precision of Aluminum Alloy Cylinder with Variable Curvature Section

Design of Multi-Stage Roll Die Forming Process for Drum Clutch with Artificial Neural Network

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