FEM simulations and experimental analysis of parameters of influence in the blanking process

Samuel, M.

doi:10.1016/s0924-0136(98)00083-1

Cited by 43 publications

(28 citation statements)

References 10 publications

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“…where σ is the effective stress, ε is the effective strain, K is the material constant, and n is the strainhardening exponent [22]. Normalized Cockroft and Latham was chosen as the fracture criterion.…”

Section: Finite Element Modelmentioning

confidence: 99%

See 1 more Smart Citation

The Effect of the Thickness-to-Die Diameter Ratio on the Sheet Metal Blanking Process

Engin¹,

Eyerci̇oğlu²

2017

SV-JME

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Section: Finite Element Modelmentioning

confidence: 99%

“…Normalized Cockroft and Latham was chosen as the fracture criterion. This criterion predicts the fracture strain more precisely than the other criterions in metal forming processes [22]. The criterion states that the fracture occurs when the effective strain reaches the critical value, expressed in Eq.…”

Section: Finite Element Modelmentioning

confidence: 99%

The Effect of the Thickness-to-Die Diameter Ratio on the Sheet Metal Blanking Process

Engin¹,

Eyerci̇oğlu²

2017

SV-JME

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“…This is mainly due to the fact that the blanking process is principally too complex for an analytical treatment. Finite element modelling appears to provide an appropriate tool to model complex processes, like the blanking process (Brokken, 1995;Brokken et al, 1996;Jeong et al, 1996;Post & Voncken, 1996;Taupin et al, 1996;Brokken et al, 1997Brokken et al, , 1998Faura et al, 1998;Klocke & Sweeney, 1998;Samuel, 1998;Brokken, 1999). However, one major difficulty in this numerical approach is the description of ductile fracture initiation, which is essential for a quantitatively correct prediction of the blanked edge.…”

Section: The Blanking Processmentioning

confidence: 99%

Prediction of Ductile Fracture in Metal Blanking

Goijaerts

Govaert

Baaijens

1999

Journal of Manufacturing Science and Engineering

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This study is focused on the description of ductile fracture initiation, which is needed to predict product shapes in the blanking process. Two approaches are elaborated using a local ductile fracture model. According to literature, characterization of such a model should take place under loading conditions, comparable to the application. Therefore, the first approach incorporates the characterization of a ductile fracture model in a blanking experiment. The second approach is more favorable for industry. In this approach a tensile test is used to characterize the fracture model, instead of a complex and elaborate blanking experiment. Finite element simulations and blanking experiments are performed for five different clearances to validate both approaches. In conclusion it can be stated that for the investigated material, the first approach gives very good results within the experimental error. The second approach, the more favorable one for industry, yields results within 6 percent of the experiments over a wide, industrial range of clearances, when a newly proposed criterion is used. [S1087-1357(00)02202-4]

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“…When these studies are examined, experimental studies investigating the blanking process and analytical studies based on the finite element method attract attention [2][3][4][5][6][7]. In these studies it was shown that clearance was directly related to the product quality.…”

Section: Introductionmentioning

confidence: 99%

The Relationship of Burr Height and Blanking Force with Clearance in the Blanking Process of AA5754 Aluminium Alloy

Çavuşoğlu

Gürün

2017

T FAMENA

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SummaryThe effect of clearance and sheet thickness in the AA5754 sheet material blanking process on the burr formation and blanking force was examined experimentally. Measurements of the burr height and blanking force were performed in a modular die with six different clearance values (8 %, 10 %, 12 %, 14 %, 16 % and 18 %) by applying the blanking process to the AA5754 sheet metal of 1 mm and 2 mm in thickness. The influence rate of parameters affecting the burr height, the blanking force, and the mathematical relationship between them were identified by using the analysis of variance (ANOVA) and the regression analysis. Thus, it was determined that the burr formation increased with increased clearance and that the blanking force was not affected in the same proportion. In addition, it was found that the sheet thickness and clearance affected the burr formation at rates of 23.24 % and 76.15 %, respectively; on the other hand, the sheet thickness and clearance affected the blanking force at rates of 99.72 % and 0.24 %, respectively.

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FEM simulations and experimental analysis of parameters of influence in the blanking process

Cited by 43 publications

References 10 publications

The Effect of the Thickness-to-Die Diameter Ratio on the Sheet Metal Blanking Process

The Effect of the Thickness-to-Die Diameter Ratio on the Sheet Metal Blanking Process

Prediction of Ductile Fracture in Metal Blanking

The Relationship of Burr Height and Blanking Force with Clearance in the Blanking Process of AA5754 Aluminium Alloy

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