Limiting Drawing Ratio and Formability Behaviour of Dual Phase Steels—Experimental Analysis and Finite Element Modelling

Amaral, Rui; Santos, Abel D.; Miranda, Sara S.

doi:10.1007/978-3-030-02257-0_32

Cited by 2 publications

(2 citation statements)

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“…The LDR as an indicator of material formability refers to the largest cup depth that can be drawn in one try without damage and is determined by the ratio of the diameter of the sheet material to the diameter of the punch [15,18]. Within the scope of the study, in order to determine the LDR, the materials were prepared in 2-mm increments starting from a 68-mm diameter.…”

Section: Limiting Drawing Ratio (Ldr) Resultsmentioning

confidence: 99%

“…The simulation results demonstrated their importance in terms of reducing die production costs and saving time without the need for experimental studies. According to the studies on the deep drawing of cylindrical cups, the LDR of DP steels with 600-1000 MPa tensile strength is approximately 2.00-2.1 and the LDR of DP steels with a strength level of 500 MPa is around 2.1-2.15 [18,19]. One of the most important ways to increase the LDR is by forming under the effect of heat.…”

Section: Limiting Drawing Ratio (Ldr) Resultsmentioning

confidence: 99%

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Investigation of deep drawing of square cups using high-strength DP600 and DP800 sheets

Şen

ÇOLAKOĞLU²,

Taşdemir

2021

International Journal of Automotive Science and Technology

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This study investigated the deep drawing of square cups using high-strength du-al phase DP600 and DP800 sheets via both experimental and finite element meth-ods. The limiting drawing ratio (LDR) and wall thickness distribution were exam-ined. The initial thickness of the materials used in the study was equal to 1-mm. The experiments were carried out at room temperature using both Teflon film and graphite spray lubricants at the same time. In terms of LDR, both experimental and numerical results corresponded with each other. A ratio of 1.97 LDR was reached for the DP600 steel and 1.92 LDR for the DP800. Given that the thick-ness distribution between the experimental and numerical results, an accord of over 90% was noticed. For the DP600 steel, the lowest experimental thickness value was 0.864 mm and the lowest numerical value was 0.87 mm. For the DP800 steel, the lowest experimental thickness value was measured to be 0.89 mm while the lowest numerical value was found to be 0.88 mm. In the conclusion, the pre-sent paper proves that the experimental results in the deep drawing of square cups can be achieved with very satisfying results by using numerical methods.

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Section: Limiting Drawing Ratio (Ldr) Resultsmentioning

confidence: 99%

Section: Limiting Drawing Ratio (Ldr) Resultsmentioning

confidence: 99%