Results 211 to 220 of about 3,571,294 (260)
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CIRP Annals, 1981
An analysis, based on the energetic stability criterion combined with numerical calculations, for the hydraulic drawing of tapered cylindrical cups is developed in this paper. As the calculation shows, the limiting drawing ratio strongly depends on the pressure during hydraulic drawing. The theoretical and experimental results agree wall.
Pavel Hora, J. Reissner, E. Matthias
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An analysis, based on the energetic stability criterion combined with numerical calculations, for the hydraulic drawing of tapered cylindrical cups is developed in this paper. As the calculation shows, the limiting drawing ratio strongly depends on the pressure during hydraulic drawing. The theoretical and experimental results agree wall.
Pavel Hora, J. Reissner, E. Matthias
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On the hydrodynamic deep-drawing process
International Journal of Mechanical Sciences, 1985Abstract The feasibility of deep-drawing aided by hydrodynamic flow beneath the blank is demonstrated. The analytical background for directing the design of the process is based on the limit analysis in plasticity theory coupled with flow analysis of viscous, non-inertial fluid.
P. Konvalina, Jehuda Tirosh
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Intelligent Shimming for Deep Drawing Processes
AIP Conference Proceedings, 2011This paper demonstrates the use of an intelligent shimming system to compensate for changes in process output due to tool wear. A new tool concept with integrated hydraulic cavities used as actuators in feedback control system is presented. By prescribing a hydraulic pressure in the individual cavities the blank-holder force distribution can be ...
Tommerup, Søren +3 more
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International Deep Drawing Research
JOM, 1986The International Deep Drawing Research Group's (IDDRG) 14th Biennial Congress, which was held in Germany, attracted an international group of engineers and scientists involved in sheet metal forming and fabrication. Nearly 300 delegates and guests of 25 national groups participated.
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Proceedings of the Institution of mechanical engineers. Part B, journal of engineering manufacture, 2018
Fabricating flat sandwich sheets into components with a required shape and dimensions is a challenging job in the metal forming field. In this article, hydro-mechanical deep drawing was used for sandwich sheet forming.
M. Fazlollahi +2 more
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Fabricating flat sandwich sheets into components with a required shape and dimensions is a challenging job in the metal forming field. In this article, hydro-mechanical deep drawing was used for sandwich sheet forming.
M. Fazlollahi +2 more
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Robustness of deep-drawing finite-element simulations to process variations
International Journal of Material Forming, 2022Kelin Chen +5 more
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A Calculation Program for Deep-Drawing Forms
CIRP Annals, 1985A program for personal computer in Basic Language calculates the dimensions of the blank of the subsequent forms of a steel metal sheet used to obtain, by deep drawing, a piece with final rectangular plant. The calculation is followed by the plotting of the plant views of all the successive forms involved. The Authors are indebted to ROMANOWSKI's work,
Perotti G. +4 more
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Springback optimization of deep drawing process based on FEM-ANN-PSO strategy
Structural And Multidisciplinary Optimization, 2021I. E. Mrabti +3 more
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Deep Drawing Height Analysis of Rectangular Cup Drawing
Volume 3: Design and Manufacturing, Parts A and B, 2010The deep drawing process is widely used in industry because it allows the production of parts with reduced weight and good mechanical properties. However, the deep drawing process of non-cylindrical shapes still relies on experimental and trial and error methods, leading to high costs and long development times.
Hugo I. Medellín Castillo +3 more
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Instability Modes in Deep-Drawing
1977Three modes of instability failure are identified for the deep-drawing of a cylindrical shell. The material properties and frictional conditions between deforming blank and tooling which determine the operative mode of instability are examined theoretically and experimentally.
P. B. Mellor, P. Ng, J. Chakrabarty
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