Hot stamping applications in the automotive industry: coupled numerical simulation and FE-based die design

Eşiyok, Ferdi; Sevilgen, Gökhan; Öztürk, Ferruh; Kaya, Necmettin; Karen, İdris

doi:10.1504/ijvd.2016.078773

Cited by 4 publications

(3 citation statements)

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“…Several studies on the numerical simulation of various industrial hot forming processes followed by quenching of mechanical components (Karbasian and Tekkaya, 2010), (Pipard et al 2013), and automotive components (Eşiyok et al 2016), (Xuejun, et al, 2020) have been conducted. Most of these works are carried out on high elastic limit steels by integrating hot stamping and quenching operations in a single step (Naderi et al 2008), (Xing et al 2009), (Taylor et al 2014) and (Merklein et al 2016).…”

Section: Introductionmentioning

confidence: 99%

Thermo-mechanical and metallurgical model of leaf spring industrial quenching process

Slama

Jabeur

Mansouri

et al. 2021

Preprint

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This study is a numerical analysis of the industrial quenching process for leaf springs developed by the CAVEO company. The leaf chosen for this study is of a parabolic profile made of EN-51CrV4 steel (AISI 6150). The aim of this study is to set up a numerical model to predict thermal, metallurgical, and mechanical behavior of a leaf spring from exit of the heating furnace to exit of the quenching bath going through a cambering operation. This study would therefore allow the company to switch from a development scheme based on experiments using physical prototypes tested on the production line to a new scheme based on virtual prototypes using numerical simulation. The development of the numerical model using the finite element method is carried out using the ABAQUS/Implicit solver coupled with two user subroutines Phase and UMAT. The first one have been developed to compute microstructure evolution and the second one to define the constitutive law taking into account phase transformations. This model helps us to follow the spatio-temporal evolutions of temperature and microstructure in the leaf, as well as the variation of the leaf deflection during the process. The proposed numerical model is supported by an experimental protocol based on infrared thermographic images, Rockwell-C hardness measurements, metallographic observations, and deflection measurements. Indeed, the results of the proposed thermo-mechanical and metallurgical model are closed to experimental results.

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Section: Introductionmentioning

confidence: 99%

Thermo-mechanical and metallurgical model of leaf spring industrial quenching process

Slama

Jabeur

Mansouri

et al. 2021

Preprint

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“…The formed parts have the advantages of high bending strength, lightweight and high complexity, and are widely applied in the automotive field. The application of hot stamping technology has greatly improved the rigidity and strength of the car body's overall structure [4][5][6]. H13 hot-working die steel, owing to the advantages of high hot strength, toughness and hardenability, have been widely applied in casting dies, extrusion dies, and Hot stamping dies [7,8].…”

Section: Introductionmentioning

confidence: 99%

Effect of CeO₂ on high-temperature wear resistance of WC/Fe-based coatings

Han

Lin

Xiao

et al. 2020

Surface Engineering

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In this study, the WC reinforced Fe-based composite coatings with various CeO 2 contents were fabricated on the H13 hot-working die steel by laser cladding. The high-temperature wear resistance of composite coatings was analysed by friction-abrasion testing machine, white light interferometer, and scanning electron microscope (SEM). The microstructure and microhardness were investigated by SEM and Vickers hardness tester. The influence mechanism of CeO 2 on microstructure and wear resistance was explained. The results showed that appropriate CeO 2 could effectively refine the microstructure of coatings, and affect the crystal morphology. The microhardness of composite coatings was about 4-5 times that of the die steel substrate. Affected by microstructure and microhardness, the Febased composite coatings with CeO 2 exhibited a higher high-temperature wear resistance than the substrate.

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“…Several studies are published on the numerical simulation of various industrial processes of hot forming and quenching of mechanical components [1] such as automotive ones [2]. Most of this work concerns the hot stamping of thin components where forming and quenching operations are combined in one step [3].…”

Section: Introductionmentioning

confidence: 99%

Numerical simulation of heat transfer during leaf spring industrial quenching process

Slama

Bouhafs

Bessrour

et al. 2018

Mechanics & Industry

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This study is carried out in partnership with the company CAVEO, manufacturer of leaf springs for vehicles. It concerns the development of a numerical model intended to follow the space-time temperature evolution of a leaf during two processing operations: hot cambering and quenching. This leaf is of a parabolic profile, made of EN-51CrV4 steel (AISI-6150). After austenitization, it passes through a cambering operation to confer it the desired deflection and then a quenching operation. This quenching is carried out in an oil bath to achieve better mechanical properties. The prediction of the temperature during quenching involves determining the heat transfer coefficient between the leaf and the oil bath. This coefficient is determined by quenching, under the same conditions as the leaf, using a standard probe of the same steel. The numerical model is based on the resolution of the transient heat equation by considering the heat loss flows towards the heterogeneous environment (ambient air, press contact and quenching oil). The results obtained by this model give the space-time temperature evolution of the leaf from the exit of the heating furnace to the exit of the oil bath. The numerical results are compared to the experimental profiles obtained through thermographic images throughout cambering and quenching operations. These results are consistent with experimental results.

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Hot stamping applications in the automotive industry: coupled numerical simulation and FE-based die design

Cited by 4 publications

References 0 publications

Thermo-mechanical and metallurgical model of leaf spring industrial quenching process

Thermo-mechanical and metallurgical model of leaf spring industrial quenching process

Effect of CeO₂ on high-temperature wear resistance of WC/Fe-based coatings

Numerical simulation of heat transfer during leaf spring industrial quenching process

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Hot stamping applications in the automotive industry: coupled numerical simulation and FE-based die design

Cited by 4 publications

References 0 publications

Thermo-mechanical and metallurgical model of leaf spring industrial quenching process

Thermo-mechanical and metallurgical model of leaf spring industrial quenching process

Effect of CeO2 on high-temperature wear resistance of WC/Fe-based coatings

Numerical simulation of heat transfer during leaf spring industrial quenching process

Contact Info

Product

Resources

About

Effect of CeO₂ on high-temperature wear resistance of WC/Fe-based coatings