Results 161 to 170 of about 225 (196)
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A split-platen pressure cell for the measurement of pressure distribution in upsetting operations
International Journal of Mechanical Sciences, 1971Abstract A description is given of a form of pressure cell by which the pressure distribution across a deforming billet can be measured. The cell performs essentially the same function as the pin loadcells which have been used by various workers in the field of plasticity research, but it is considered that this new device offers advantages in terms ...
G.H. Daneshi, J.B. Hawkyard
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Contact pressure-dependent friction compensation in upsetting tests with miniaturized specimens
Materials Research Proceedings, 2023Abstract. Components produced by sheet metal forming can so far only be characterized locally to a limited extent using conventional tests, such as the tensile test or the hydraulic cupping test, due to the size of the specimen. A new approach based on miniaturized upsetting specimens taken from the sheet plane allows to determine the material ...
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The effect of friction on pressure in upsetting at low diameter-to-height ratios
Journal of Mechanical Working Technology, 1982Abstract The upsetting of relatively slender cylinders, with a diameter-to-height ratio of 0.5–1.0, is often encountered in hot forging and cold upsetting and is also one of the preferred methods of flow stress determination. Because of friction, barrelling and even folding-over of the side surfaces occurs but, for reasons of convenience, pressure ...
J.A. Schey, T.R. Venner, S.L. Takomana
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International Journal of Mechanical Sciences, 1980
Abstract The axial compression of solid cylinders with initially equal height and diameter between flat parallel platens is examined. A finite-element method is used to predict the platen forces, the pressure distribution, and the strain and hardness distributions within the billet, for various levels of interface shear stress.
Hartley, P. +2 more
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Abstract The axial compression of solid cylinders with initially equal height and diameter between flat parallel platens is examined. A finite-element method is used to predict the platen forces, the pressure distribution, and the strain and hardness distributions within the billet, for various levels of interface shear stress.
Hartley, P. +2 more
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Metallurgical Research & Technology, 2021
The dissimilar connection between 6082 aluminum alloy and 304 stainless steel was realized by continuous drive friction welding. Microstructures of the joint were studied by optical microscopy (OM), scanning electron microscopy (SEM) and X-ray diffractometry (XRD).
Gui-peng Lu +4 more
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The dissimilar connection between 6082 aluminum alloy and 304 stainless steel was realized by continuous drive friction welding. Microstructures of the joint were studied by optical microscopy (OM), scanning electron microscopy (SEM) and X-ray diffractometry (XRD).
Gui-peng Lu +4 more
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Journal of Materials Processing Technology, 2004
Abstract The pressure distribution on a die surface is non-uniform during the upsetting process. A special experimental device was designed to measure the pressure distribution and experiments with different parameters were conducted. The upsetting process was also simulated by DEFORM and a comparison made of the experimental and theoretical results.
X.L. Hu, J.T. Hai, W.M. Chen
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Abstract The pressure distribution on a die surface is non-uniform during the upsetting process. A special experimental device was designed to measure the pressure distribution and experiments with different parameters were conducted. The upsetting process was also simulated by DEFORM and a comparison made of the experimental and theoretical results.
X.L. Hu, J.T. Hai, W.M. Chen
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Model-based analysis of pressure oxidation autoclave behaviour during process upsets
Hydrometallurgy, 1995Prediction of a hydrometallurgical reactor performance, process optimization and control apparently require reliable process models. Mathematical modelling of hydrometallurgical reactors is a rather complicated task. This is mainly caused by the particulate nature of processed materials, the simultaneous occurrence of several multi-phase heterogeneous ...
D.H. Rubisov, V.G. Papangelakis
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Advanced Materials Research, 2013
The propeller shaft of rear-wheel drive vehicle is an axis which transfers power from an engine to rear-wheel through differential gear box. In this study, we studied the properties of friction welding required to produce the aluminum propeller shaft of lightweight rear-wheel-drive vehicle.
Il Taek Lee +4 more
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The propeller shaft of rear-wheel drive vehicle is an axis which transfers power from an engine to rear-wheel through differential gear box. In this study, we studied the properties of friction welding required to produce the aluminum propeller shaft of lightweight rear-wheel-drive vehicle.
Il Taek Lee +4 more
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Upper bound analysis of the upsetting of pressure-sensitive polymeric rings
International Journal of Mechanical Sciences, 1988zbMATH Open Web Interface contents unavailable due to conflicting licenses.
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Journal of Materials Processing Technology, 1996
Abstract The upsetting-sliding test is dedicated to the determination and identification of constitutive friction laws. This test originally involved an inclined front face indenter creating a localized plastic zone by moving with a given penetration along a generator line of a specimen.
A. Dubois +3 more
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Abstract The upsetting-sliding test is dedicated to the determination and identification of constitutive friction laws. This test originally involved an inclined front face indenter creating a localized plastic zone by moving with a given penetration along a generator line of a specimen.
A. Dubois +3 more
openaire +1 more source