Design of Horizontal Mechanical Presses for Deep Drawing and Ironing Process

Design Engineering ◽

10.1115/imece2002-39427 ◽

2002 ◽

Cited By ~ 1

Author(s):

Jyhwen Wang

Keyword(s):

Deep Drawing ◽

Special Class ◽

The Press

This paper addresses the kinematics design and analysis of a special class of mechanical presses used for deep drawing and ironing process. The key design objectives are to obtain a longer stroke and a quicker punch return. From the kinematics equations, it is shown that the horizontal quick return mechanism exhibits the preferred characteristics. The behavior of the press is studied based on the placement of the links. The kinematics constraints are observed and the placement of press components to achieve better performance is summarized.

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Considerations on the interaction between the press structure and the tool in the deep drawing simulation

Journal de Physique IV (Proceedings) ◽

10.1051/jp4:19937183 ◽

1993 ◽

Vol 03 (C7) ◽

pp. C7-1181-C7-1186 ◽

Cited By ~ 1

Author(s):

G. BELINGARDI ◽

A. CHIARA ◽

M. FARIELLO

Keyword(s):

Deep Drawing ◽

The Press

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Comparative Study of Analytical Expressions to Estimate the Deep Drawing Force of Cylindrical and Rectangular Parts

Volume 2: Advanced Manufacturing ◽

10.1115/imece2016-67273 ◽

2016 ◽

Author(s):

Aarón Rivas Menchi ◽

Hugo I. Medellín Castillo ◽

Dirk F. de Lange ◽

Pedro de J. García Zugasti

Keyword(s):

Deep Drawing ◽

Prediction Performance ◽

Process Efficiency ◽

Equivalent Diameter ◽

Drawing Process ◽

Drawing Force ◽

Deep Drawing Process ◽

The Press ◽

Cylindrical Parts ◽

Analytical Expressions

The deep drawing process has been widely used in the industry because it eliminates costly operations such as welding and machining. However, there are many parameters involved that affect the quality of the final products. One of the main parameters of the deep drawing process is the maximum deep drawing force (DDF) or drawing load, which is the maximum force required to perform a particular deep drawing operation. This maximum DDF is needed to define the required capacity of the press, and to calculate the deep drawing work and the process efficiency. Several analytical expressions to estimate the maximum DDF have been proposed in the literature, particularly for cylindrical parts. However, few research works have focused on analyzing the prediction performance of these expressions. In this paper, the performance of different analytical expressions to estimate the maximum DDF of cylindrical and rectangular parts, is evaluated and compared. Initially, several expressions proposed by different researches for the maximum DDF of cylindrical parts are presented. Then, these expressions are transformed into new expressions for the maximum DDF of rectangular parts by using different concepts of equivalency, such as the equivalent diameter concept. Finally, the prediction performance of all the expressions for both cylindrical and rectangular deep drawing is analysed and compared using experimental data from the literature. The performance is evaluated in terms of the prediction error. The results have suggested that the analytical expressions involving the largest number of parameters have a superior prediction performance than the analytical expressions involving less parameters.

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Effects of Elastic Behaviour of Dies and Servo Press Machine on Deep Drawing Process

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.89-91.621 ◽

2010 ◽

Vol 89-91 ◽

pp. 621-626 ◽

Cited By ~ 1

Author(s):

Akihiro Watanabe ◽

Y. Kotani ◽

K. Nishimura ◽

Hisaki Watari ◽

Takanori Yamazaki

Keyword(s):

Elastic Deformation ◽

Deep Drawing ◽

Vertical Displacement ◽

Elastic Behaviour ◽

Deformation Analysis ◽

Servo Press ◽

Die Structure ◽

The Press ◽

Cad Simulation ◽

Characteristic Features

Characteristic features of elastic deformation of dies and presses during deep drawing were measured to examine the effects of elastic deformation of the press and dies on product accuracy. Strains were measured on the press including dies, a slide and a bolster of a servo press. A strain magnitude of 63 ×10-6 was obtained when the slide position was at the lowest point. Two slide motions of the servo press were selected to determine appropriate manufacturing conditions. An elastic deformation analysis of the die structure was then performed by CAD simulation. To find an appropriate die structure model, the vertical displacement of the die structure in the CAD simulation was compared to the experiment results. It was found that the vertical displacement of the die structure was 0.147 [mm] at the top surface of the die when considering elastic deformation of the die structure as well as the bolster of the servo press.

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Press Joining Rolling Process for Hybrid Systems

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.425.271 ◽

2010 ◽

Vol 425 ◽

pp. 271-281 ◽

Cited By ~ 14

Author(s):

Adele Carradò ◽

Olga Sokolova ◽

Gerhard Ziegmann ◽

Heinz Palkowski

Keyword(s):

Deep Drawing ◽

Rolling Process ◽

Roll Bonding ◽

Steel Sheets ◽

The Press ◽

Polymer Metal ◽

Sandwich Sheet ◽

The One ◽

Forming Behaviour ◽

Metal Polymer

The press joining rolling process used for the production of metal/polymer/metal systems is introduced. In the first step three-layer sandwich sheet, 316L/polypropylene- polyethylene/316L (316L/PP-PE/316L) with and without local reinforcement, were processed by roll bonding at approx. 250°C of two steel sheets with a pre-rolled PP-PE - core sheet. Mechanical and forming behaviour of the parts had been investigated by tensile, bending and deep drawing tests. It could be shown that for moderate drawing depths deep drawing behaviour is close to the one of the mono-material.

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