Results 211 to 220 of about 105,780 (261)
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The optimisation deep-draw clearance design for deep-draw dies
The International Journal of Advanced Manufacturing Technology, 1998In this paper, the modelling of deep-drawing processing using neural networks is established. The relationships between process parameter (material thickness, punch diameter, die-cavity diameter and materials-clearance ratio) and deep-drawing performance (the dimensional error of diameter and cylinder) are created, based on a neural network.
C. C. Tai, J. C. Lin
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The deep drawing of thermoplastics
Polymer Engineering & Science, 1977AbstractThe theory of deep drawing, which has been developed for metals, is examined critically for thermoplastics. Two special characteristics of thermoplastics, the strong orientation hardening after initial yielding and the ease of crack formation and growth, are shown to vitiate the usual correlation between the drawability of the sheet and the low
M. J. Miles, N. J. Mills
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2006
Abstract This article illustrates the mechanics of the deep drawing of a cylindrical cup. It discusses the fundamentals of drawing and drawability. Sheet metal is drawn in either hydraulic or mechanical presses. The article summarizes the defects in drawing and factors considered in press selection for drawing.
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Abstract This article illustrates the mechanics of the deep drawing of a cylindrical cup. It discusses the fundamentals of drawing and drawability. Sheet metal is drawn in either hydraulic or mechanical presses. The article summarizes the defects in drawing and factors considered in press selection for drawing.
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On the acting pressure in laser deep drawing
Production Engineering, 2008Through the continuing trend of miniaturization new cost efficient and fast methods for processing of small parts are required. In this paper a non-mechanical process for the forming process of micro deep drawing is presented. This new pulsed laser based deep drawing process utilizes an initiated plasma shock wave at the target, which forms the sheet ...
Frank Vollertsen +2 more
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Deep drawing of superplastic material
Metals Technology, 1976AbstractA technique of deep drawing superplastic sheet material is described in which a differential temperature between the sheet and punch is used. With super plastic ZAM, the drawability obtained with this technique is significantly greater than that obtained with conventional materials or with superplastic materials using other techniques.
R. Hawkins, J. A. Belk
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2019
The term metal forming refers to a group of manufacturing methods by which the given shape of a workpiece (a solid body) is converted to another shape without change in the mass or composition of the material of the workpiece. In this paper, the basics of a deep drawing process for the production of a thick plate steam boiler end caps are shown.
Grizelj, Branko +4 more
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The term metal forming refers to a group of manufacturing methods by which the given shape of a workpiece (a solid body) is converted to another shape without change in the mass or composition of the material of the workpiece. In this paper, the basics of a deep drawing process for the production of a thick plate steam boiler end caps are shown.
Grizelj, Branko +4 more
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Process optimisation in deep drawing
Revue Européenne des Éléments Finis, 2000Summary: We propose a numerical technique for process optimization applied to the deep drawing of sheet metals. This technique is based on the combination of an optimization algorithm and finite element method. The optimization algorithm is based on the gradient method and on the sensitivity analysis, and allows to optimize process parameters in order ...
Ghouati, Omar +2 more
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International Journal of Mechanical Sciences, 1973
Abstract By deep-drawing into a high-pressure fluid the limiting drawing ratio can be considerably increased over that obtained in conventional deep-drawing. However, this result is achieved at the cost of greater expenditure of energy and of some form of control system for the high-pressure fluid.
M.G. El-Sebaie, P.B. Mellor
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Abstract By deep-drawing into a high-pressure fluid the limiting drawing ratio can be considerably increased over that obtained in conventional deep-drawing. However, this result is achieved at the cost of greater expenditure of energy and of some form of control system for the high-pressure fluid.
M.G. El-Sebaie, P.B. Mellor
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2012
This research work presents recent results on the formability of paper-based materials. Different kinds of commercial paperboard samples were evaluated using a laboratory 2D - formability tester, and a 3D deep-drawing equipment. It was found that the appearance of the formed shapes and the performance of paperboard in the forming process have a ...
Vishtal, Alexey +3 more
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This research work presents recent results on the formability of paper-based materials. Different kinds of commercial paperboard samples were evaluated using a laboratory 2D - formability tester, and a 3D deep-drawing equipment. It was found that the appearance of the formed shapes and the performance of paperboard in the forming process have a ...
Vishtal, Alexey +3 more
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Hydrodynamic lubrication of deep drawing
2020An isoviscous steady hydrodynamic lubrication model for a deep drawing process is developed. Equations to calculate lubricant film thickness, radial, and drawing stresses are presented. The die inlet film thickness is related to the properties of the lubricant and the sheet metal, the tooling geometry and the operating conditions.
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