The determination of optimum blank shapes when deep drawing prismatic cups

Liu, F.; Sonntag, Robert

doi:10.1007/bf02834685

Cited by 17 publications

(5 citation statements)

References 3 publications

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“…The slip line field method though is suitable only for non-hardening materials and plane strain conditions. Liu and Sowerby [9] proposed a method based on potential flow to establish the optimum blank shape for prismatic cup drawing. They assumed that the flow of material in cup drawing is comparable to irrotational flow of an inviscid fluid.…”

Section: Introductionmentioning

confidence: 99%

A numerical investigation on the use of drawbeads to minimize ear formation in deep drawing

Vahdat

Santhanam

Chun

2006

Journal of Materials Processing Technology

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Section: Introductionmentioning

confidence: 99%

A numerical investigation on the use of drawbeads to minimize ear formation in deep drawing

Vahdat

Santhanam

Chun

2006

Journal of Materials Processing Technology

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“…Their aim was to acquire an optimal design for product accuracy during the drawing process. Lieu [3] and Aita [4] studied the best ways to obtain the parameters of optimal clearance and profile of punch and die during square drawing. Tai, et al [5] also tried to obtain the optimal clearance value of punch and die during the drawing process using the Neural Network and Simulated Annealing Method.…”

Section: Introductionmentioning

confidence: 99%

A 3D Virtual FEM and SA Method to Determining the Optimization Clearance for a Punching Die

Lin

Lee

2009

KEM

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This study is subject to 3D virtual simulation and experiment design method application in the optimal clearance design in the 3D shell punched processing. During the simulation stage, the PAM-CRASH and 3D-CAD (Pro/E) system are used to model the punching processing. The results of the punching maximum punched burr from the 3D virtual punching simulation were input to a neural network to establish a model corresponding to the 3D shell punched variables. Once the metal punching control parameters, such as punch/die radius, punch/die clearance, punch cutting angle and different material thickness, were given, the punching processing performance (the punching maximum burr and maximum stress) can be accurately predicted by this developed network. Therefore, in this research, a satisfactory result based on the simulation verification is established.

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“…Early approaches were based on the slip line field method. Liu and Sowerby [8] proposed a method based on potential flow to establish the optimum blank shape for prismatic cup drawing. They assumed that the flow of material in cup drawing is comparable to irrotational flow of an inviscid fluid.…”

Section: Introductionmentioning

confidence: 99%

The design of blank’s initial shape in the near net-shape deep drawing of square cup

Yang

Shyu

2007

J Mech Sci Technol

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Deep drawing process is vel)' useful in industrial field because of its efficiency. The deep drawing is affected by many process variables, such as blank shapes, profile radii of punch and die, formability of materials and so on. Especially, in order to obtain the optimal products in deep drawing process, blank shape is vel)' important formability factor. In this paper, the finite element method is used to investigate the cup height of the square cup drawing process. In order to verify the prediction ofFEM simulation of the product's height and forming load in the square cup drawing process, the experimental data are compared with the results of the current simulation. A finite element analysis is also utilized to acquire the designed profile of the drawn products, a reverse forming method for obtaining the initial blank's shape according to the forward square cup drawing simulation is proposed. The design of initial blank's shape is also certified to obtain the designed profile of drawn cups by experiment. The influences of the blank's shape on the height of product, the forming load, the maximum effective stress and the maximum effective strain are also examined.

show abstract

The determination of optimum blank shapes when deep drawing prismatic cups

Cited by 17 publications

References 3 publications

A numerical investigation on the use of drawbeads to minimize ear formation in deep drawing

A numerical investigation on the use of drawbeads to minimize ear formation in deep drawing

A 3D Virtual FEM and SA Method to Determining the Optimization Clearance for a Punching Die

The design of blank’s initial shape in the near net-shape deep drawing of square cup

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