Deep drawing of high-strength tailored blanks by using tailored tools

Publikation: Beiträge in ZeitschriftenZeitschriftenaufsätzeForschungbegutachtet

Standard

Deep drawing of high-strength tailored blanks by using tailored tools. / Mennecart, Thomas; Ul Hassan, Hamad; Güner, Alper et al.
in: Materials, Jahrgang 9, Nr. 2, 77, 02.2016.

Publikation: Beiträge in ZeitschriftenZeitschriftenaufsätzeForschungbegutachtet

Harvard

APA

Mennecart, T., Ul Hassan, H., Güner, A., Ben Khalifa, N., & Hosseini, M. (2016). Deep drawing of high-strength tailored blanks by using tailored tools. Materials, 9(2), Artikel 77. https://doi.org/10.3390/ma9020077

Vancouver

Mennecart T, Ul Hassan H, Güner A, Ben Khalifa N, Hosseini M. Deep drawing of high-strength tailored blanks by using tailored tools. Materials. 2016 Feb;9(2):77. doi: 10.3390/ma9020077

Bibtex

@article{66f473c078fd434ea44533d9cbc05c96,
title = "Deep drawing of high-strength tailored blanks by using tailored tools",
abstract = "In most forming processes based on tailored blanks, the tool material remains the same as that of sheet metal blanks without tailored properties. A novel concept of lightweight construction for deep drawing tools is presented in this work to improve the forming behavior of tailored blanks. The investigations presented here deal with the forming of tailored blanks of dissimilar strengths using tailored dies made of two different materials. In the area of the steel blank with higher strength, typical tool steel is used. In the area of the low-strength steel, a hybrid tool made out of a polymer and a fiber-reinforced surface replaces the steel half. Cylindrical cups of DP600/HX300LAD are formed and analyzed regarding their formability. The use of two different halves of tool materials shows improved blank thickness distribution, weld-line movement and pressure distribution compared to the use of two steel halves. An improvement in strain distribution is also observed by the inclusion of springs in the polymer side of tools, which is implemented to control the material flow in the die. Furthermore, a reduction in tool weight of approximately 75%can be achieved by using this technique. An accurate finite element modeling strategy is developed to analyze the problem numerically and is verified experimentally for the cylindrical cup. This strategy is then applied to investigate the thickness distribution and weld-line movement for a complex geometry, and its transferability is validated. The inclusion of springs in the hybrid tool leads to better material flow, which results in reduction of weld-line movement by around 60%, leading to more uniform thickness distribution.",
keywords = "High strength steels, Hybrid deep drawing tools, Tailored blanks, Tailored tools, Engineering",
author = "Thomas Mennecart and {Ul Hassan}, Hamad and Alper G{\"u}ner and {Ben Khalifa}, Noomane and Mohamad Hosseini",
year = "2016",
month = feb,
doi = "10.3390/ma9020077",
language = "English",
volume = "9",
journal = "Materials",
issn = "1996-1944",
publisher = "MDPI AG",
number = "2",

}

RIS

TY - JOUR

T1 - Deep drawing of high-strength tailored blanks by using tailored tools

AU - Mennecart, Thomas

AU - Ul Hassan, Hamad

AU - Güner, Alper

AU - Ben Khalifa, Noomane

AU - Hosseini, Mohamad

PY - 2016/2

Y1 - 2016/2

N2 - In most forming processes based on tailored blanks, the tool material remains the same as that of sheet metal blanks without tailored properties. A novel concept of lightweight construction for deep drawing tools is presented in this work to improve the forming behavior of tailored blanks. The investigations presented here deal with the forming of tailored blanks of dissimilar strengths using tailored dies made of two different materials. In the area of the steel blank with higher strength, typical tool steel is used. In the area of the low-strength steel, a hybrid tool made out of a polymer and a fiber-reinforced surface replaces the steel half. Cylindrical cups of DP600/HX300LAD are formed and analyzed regarding their formability. The use of two different halves of tool materials shows improved blank thickness distribution, weld-line movement and pressure distribution compared to the use of two steel halves. An improvement in strain distribution is also observed by the inclusion of springs in the polymer side of tools, which is implemented to control the material flow in the die. Furthermore, a reduction in tool weight of approximately 75%can be achieved by using this technique. An accurate finite element modeling strategy is developed to analyze the problem numerically and is verified experimentally for the cylindrical cup. This strategy is then applied to investigate the thickness distribution and weld-line movement for a complex geometry, and its transferability is validated. The inclusion of springs in the hybrid tool leads to better material flow, which results in reduction of weld-line movement by around 60%, leading to more uniform thickness distribution.

AB - In most forming processes based on tailored blanks, the tool material remains the same as that of sheet metal blanks without tailored properties. A novel concept of lightweight construction for deep drawing tools is presented in this work to improve the forming behavior of tailored blanks. The investigations presented here deal with the forming of tailored blanks of dissimilar strengths using tailored dies made of two different materials. In the area of the steel blank with higher strength, typical tool steel is used. In the area of the low-strength steel, a hybrid tool made out of a polymer and a fiber-reinforced surface replaces the steel half. Cylindrical cups of DP600/HX300LAD are formed and analyzed regarding their formability. The use of two different halves of tool materials shows improved blank thickness distribution, weld-line movement and pressure distribution compared to the use of two steel halves. An improvement in strain distribution is also observed by the inclusion of springs in the polymer side of tools, which is implemented to control the material flow in the die. Furthermore, a reduction in tool weight of approximately 75%can be achieved by using this technique. An accurate finite element modeling strategy is developed to analyze the problem numerically and is verified experimentally for the cylindrical cup. This strategy is then applied to investigate the thickness distribution and weld-line movement for a complex geometry, and its transferability is validated. The inclusion of springs in the hybrid tool leads to better material flow, which results in reduction of weld-line movement by around 60%, leading to more uniform thickness distribution.

KW - High strength steels

KW - Hybrid deep drawing tools

KW - Tailored blanks

KW - Tailored tools

KW - Engineering

UR - http://www.scopus.com/inward/record.url?scp=84960123984&partnerID=8YFLogxK

U2 - 10.3390/ma9020077

DO - 10.3390/ma9020077

M3 - Journal articles

C2 - 28787876

AN - SCOPUS:84960123984

VL - 9

JO - Materials

JF - Materials

SN - 1996-1944

IS - 2

M1 - 77

ER -

DOI

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