Results 251 to 260 of about 5,583,970 (291)

Die Concepts for Hydromechanical Deep Drawing

SAE Technical Paper Series, 2004
<div class="htmlview paragraph">Deep drawing with hydraulic counter pressure has numerous advantages compared to conventional deep drawing. Hydromechanical deep drawing is a capable process for producing complex and tapered-shaped stamping parts as well as parts with excellent surface quality, i.e., outer body panels. Due to the low costs of dies,
H. Markstaedter, B. Oberpriller, K. Siegert   +2 more
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Optimization of Die Profiles for Deep Drawing

Journal of Mechanical Design, 1980
This paper develops a procedure for the optimization of dies used in the deep drawing process. Previous efforts in this area are initially related. Considerable discussion is then devoted to the problem formulation. To effect the problem’s solution, several techniques are merged including the use of cubic and quartic splines, regression curve fitting ...
T. F. Conry, E. I. Odell, W. J. Davis
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Die draw-over Verdunster

1969
Das Anwendungsgebiet der draw-over-Verdunster liegt vor allem bei der Armee, bei Katastropheneinsatzen, Kurznarkosen, bei der Wundversorgung und Versorgung von Knochenbruchen, sowie beim Einsatz in Entwicklungslandern. Sie sind eine verhaltnismasig gunstige Losung als transportable Narkosegerate.
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Automatic Draw Direction Generation for Die Design

Volume 6: 18th Computers in Engineering Conference, 1998
Abstract The concept of visibility maps was first used by Woo et al (Woo et al., 1994) to find the draw directions for a die. This paper describes an algorithm that extends this idea by handling free form surfaces, parts requiring multiple draw directions and parts with pockets that have a null visibility map.
J. V. K. Vijay, U. Shrinivasa, B. Gurumoorthy   +2 more
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On the Analysis of Die Wear in Wire-Drawing Process

Tribology Transactions, 2012
In the present article, the wire-drawing process is investigated in order to estimate die wear using an experimental approach. Experiments were carried out on a drawing machine involving industrial conditions. Dies made from tungsten carbide were examined using macroscopic and microscopic observations to measure the wear ring located at the wire–die ...
Abdelkader Haddi, Abdellatif Imad, Guillaume Vega   +2 more
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Use of FEM in the Drawing Die Structure Design

SAE Technical Paper Series, 1998
<div class="htmlview paragraph">The Finite Element Method is a widely applied tool for solving structural mechanics problems. The present paper illustrates the advantages related to the use of the F.E. analysis in the sheet metal die construction activity.
Ettore Becchio, Agostino Chiara, Romina Fileccia, Marco Mastrocola   +3 more
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Analysis of die profiles in wire drawing

Journal of the Franklin Institute, 1957
Abstract A method for the stress analysis of wire drawing using dies of any given profile is described. Examples of straight, concave, convex and bell-shape dies are investigated. Results indicate that the die profile has a significant effect on the distribution of die pressure and comparison shows that the bell-shape die has the lowest draw stress ...
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Lubricant flow through the nozzle of a drawing die

Wear, 1987
Abstract Lubricant flow through the nozzle of a drawing die, governed by the power-law rheological equation of state, is examined. The nozzle dimensions, ensuring a maximum lubricant throughput, are obtained analytically by using the variation methods.
G.V. Vinogradov, G.L. Kolmogorov, V.Yu. Shevljakov, N.V. Shakirov   +3 more
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Power parameters of the drawing process in a roller die

Russian Journal of Non-Ferrous Metals, 2009
With the use of the inversion method when analyzing the kinematics of the deformation center, a method for evaluating the power parameters of the drawing process in roller dies (RDs) is developed. Design formulas are obtained to determine the contact stresses and drawing stress as a function of the technological characteristics of the process and the ...
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Drawing Progressive Die Design for Shell Parts

Advanced Materials Research, 2013
The deep drawing progressive forming process was analyzed by introducing the drawing progressive die design of shell parts. The drawing progressive design, layout design and mold structure was described detailedly.
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