Direct usage of the wire drawing process for large strain parameter identification

Venet, Gabriel; Balan, Tudor; Baudouin, Christophe; Bigot, Régis

doi:10.1007/s12289-018-01458-z

Cited by 8 publications

(6 citation statements)

References 29 publications

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“…Cetlin suggested a parabolic equation for the distribution of strain using an experiment for establishing the relationship between hardness and strain [10]. In Figure 11, it can be observed that the distribution of strain is similar not only to that of Cetlin’s research but also to that of Vent’s research using FEA [9].…”

Section: Resultsmentioning

confidence: 59%

“…Additionally, Celentano et al predicted the distribution of effective strain from the center to the surface of a steel wire based on an FEA [8]. Venet et al used an FEA to plot the effective strain of a multi-pass steel wire drawing process [9] and observed that the strain distribution showed no sensitivity to the work hardening coefficient of the wire material. Cetlin evaluated the deformation within the drawn aluminum wire cross section using the hardness profile method in two-pass drawing [10].…”

Section: Introductionmentioning

confidence: 99%

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Prediction of Effective Strain Distribution in Two-Pass Drawn Wire

Lee

et al. 2019

Materials

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In the multi-pass wire drawing process, the diameter of a wire is decreased by continuously passing it through progressively smaller drawing dies. Although the deformation depends on the process variables, in most wire drawing processes, the wire deformation is concentrated on the surface by its direct contact with the drawing dies, causing a nonlinear distribution of radial direction effective strain from the center to the surface. In this study, a new model for predicting this effective strain in two-pass drawn wire was derived based on the upper bound method, and a finite element analysis and drawing experiment were conducted to validate its effectiveness. The proposed model offers a promising approach to determining and thus controlling the strain in multi-pass drawn wire.

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Section: Resultsmentioning

confidence: 59%

Section: Introductionmentioning

confidence: 99%

Prediction of Effective Strain Distribution in Two-Pass Drawn Wire

Lee

et al. 2019

Materials

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“…The compression test’s strain rate of the three specimens was 0.1 1/s. The isotropic hardening behavior of the material was modeled using the Swift approach [ 19 ]. Figure 4 shows the flow curve and the extrapolation for higher plastic strain.…”

Section: Methodsmentioning

confidence: 99%

Adjusting the Residual Stress State in Wire Drawing Products via In-Process Modification of Tool Geometries

et al. 2021

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After conventional forming processes, the residual stress distribution in wires is frequently unfavorable for subsequent processes, such as bending operations. High tensile residual stresses typically occur near the wire surface and normally limit further processability of the material. Additional heat treatment operations or shot peening are often used to influence the residual stress distribution in the material after conventional manufacturing, which is time- and energy-consuming. This paper presents an approach for influencing the residual stress distribution by modifying the forming process, especially regarding die geometry. The aim is to reduce the resulting tensile stress levels near the surface. Specific forming elements are integrated into the dies to achieve this residual stress reduction. These modifications in the forming zone have a significant influence on process properties, such as plastic strain and deformation direction, but typically do not influence product geometry. This paper describes the theoretical approach and model setup, the FE simulation, and the results of the experimental tests. The characterization of the residual stress states in the specimen was carried out through X-ray diffraction using the sin2Ψ method.

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“…The Swift-Voce combined law was used as it is repeatedly identified in the literature as one of the most adequate isotropic hardening law to describe large strain hardening behavior of sheet metals, in particular steels [12], [17].…”

Section: Swift-voce Isotropic Hardeningmentioning

confidence: 99%

Strain-path dependent hardening models with rigorously identical predictions under monotonic loading

Yang

Vincze

Baudouin

et al. 2021

Mechanics Research Communications

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Accurate sheet metal simulation often requires advanced strain-path dependent material models, in order to predict the material response under complex loading conditions, including monotonic, reverse and orthogonal paths. More and more flexible models imply higher and higher costs in terms of parameter identification, computer implementation and simulation time, and robust comparison is often compromised by the inconsistent predictions of advanced models under monotonic loading. In this paper, a simple and general approach is proposed for the alteration of advanced hardening models in order to make them rigorously identical to each other under monotonic loading. This objective was reached without any drawback other than the addition of the corresponding equations. On the contrary, the flexibility and accuracy of the selected models was improved, and the parameter identification procedure became simpler, more accurate and more robust. Three material models of increasing complexity were selected to demonstrate the interest of this approach with respect to a complete set of characterisation experiments for a DP600 sheet steel.

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Direct usage of the wire drawing process for large strain parameter identification

Cited by 8 publications

References 29 publications

Prediction of Effective Strain Distribution in Two-Pass Drawn Wire

Prediction of Effective Strain Distribution in Two-Pass Drawn Wire

Adjusting the Residual Stress State in Wire Drawing Products via In-Process Modification of Tool Geometries

Strain-path dependent hardening models with rigorously identical predictions under monotonic loading

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