The Experts below are selected from a list of 63687 Experts worldwide ranked by ideXlab platform
Z D Hu - One of the best experts on this subject based on the ideXlab platform.
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application of electromagnetic assisted stamping emas Technique in incremental sheet metal Forming
International Journal of Machine Tools & Manufacture, 2006Co-Authors: C N Okoye, J H Jiang, Z D HuAbstract:Abstract The application of high velocity electromagnetic-assisted stamping (EMAS) Technique in incremental sheet metal Forming has been proposed. EMAS whose principle is based on Lorenz force is a hybrid Forming process that uses both quasi-static conventional stamping Technique and electromagnetic Forming actuators built into sharp corners and other difficult-to-form contours to form metals. The recent push to use more artificial intelligent (AI) aluminum alloys in automobile and aircraft industries as a result of increasing demand for fuel efficient cars and aircrafts, large size vehicle panels, improved formability limit of materials and weight reduction have placed EMAS as one of the best high velocity Forming Technique. It is believed that the end result of this vision will lead to more cost effective land and aerospace vehicles.
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application of electromagnetic assisted stamping emas Technique in incremental sheet metal Forming
International Journal of Machine Tools & Manufacture, 2006Co-Authors: C N Okoye, J H Jiang, Z D HuAbstract:Abstract The application of high velocity electromagnetic-assisted stamping (EMAS) Technique in incremental sheet metal Forming has been proposed. EMAS whose principle is based on Lorenz force is a hybrid Forming process that uses both quasi-static conventional stamping Technique and electromagnetic Forming actuators built into sharp corners and other difficult-to-form contours to form metals. The recent push to use more artificial intelligent (AI) aluminum alloys in automobile and aircraft industries as a result of increasing demand for fuel efficient cars and aircrafts, large size vehicle panels, improved formability limit of materials and weight reduction have placed EMAS as one of the best high velocity Forming Technique. It is believed that the end result of this vision will lead to more cost effective land and aerospace vehicles.
C N Okoye - One of the best experts on this subject based on the ideXlab platform.
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application of electromagnetic assisted stamping emas Technique in incremental sheet metal Forming
International Journal of Machine Tools & Manufacture, 2006Co-Authors: C N Okoye, J H Jiang, Z D HuAbstract:Abstract The application of high velocity electromagnetic-assisted stamping (EMAS) Technique in incremental sheet metal Forming has been proposed. EMAS whose principle is based on Lorenz force is a hybrid Forming process that uses both quasi-static conventional stamping Technique and electromagnetic Forming actuators built into sharp corners and other difficult-to-form contours to form metals. The recent push to use more artificial intelligent (AI) aluminum alloys in automobile and aircraft industries as a result of increasing demand for fuel efficient cars and aircrafts, large size vehicle panels, improved formability limit of materials and weight reduction have placed EMAS as one of the best high velocity Forming Technique. It is believed that the end result of this vision will lead to more cost effective land and aerospace vehicles.
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application of electromagnetic assisted stamping emas Technique in incremental sheet metal Forming
International Journal of Machine Tools & Manufacture, 2006Co-Authors: C N Okoye, J H Jiang, Z D HuAbstract:Abstract The application of high velocity electromagnetic-assisted stamping (EMAS) Technique in incremental sheet metal Forming has been proposed. EMAS whose principle is based on Lorenz force is a hybrid Forming process that uses both quasi-static conventional stamping Technique and electromagnetic Forming actuators built into sharp corners and other difficult-to-form contours to form metals. The recent push to use more artificial intelligent (AI) aluminum alloys in automobile and aircraft industries as a result of increasing demand for fuel efficient cars and aircrafts, large size vehicle panels, improved formability limit of materials and weight reduction have placed EMAS as one of the best high velocity Forming Technique. It is believed that the end result of this vision will lead to more cost effective land and aerospace vehicles.
Sudipta Seal - One of the best experts on this subject based on the ideXlab platform.
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synthesis and characterization of plasma spray formed carbon nanotube reinforced aluminum composite
Materials Science and Engineering A-structural Materials Properties Microstructure and Processing, 2004Co-Authors: Tapas Laha, Arvind Agarwal, T Mckechnie, Sudipta SealAbstract:A trend has been perceived in the field of composite materials to employ carbon nanotubes as reinforcement in synthesizing composites of unique properties. In this endeavor, free standing structures of Al-based nanostructured composite with carbon nanotubes as second phase particles has been synthesized by plasma spray Forming Technique. Optical microscopy, scanning electron microscopy, X-ray diffraction, transmission electron microscopy has been carried out to analyze the composite structure and to verify the retention of carbon nanotubes. Besides, density and microhardness measurements have been performed to understand the effect of carbon nanotube reinforcement on the mechanical properties of the composite. The characterization affirms the presence of unmelted and chemically unreacted carbon nanotubes in the composite. Moreover, the composite experienced an increase in relative microhardness due to the presence of carbon nanotube.
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net shape nanostructured aluminum oxide structures fabricated by plasma spray Forming
Journal of Thermal Spray Technology, 2003Co-Authors: Arvind Agarwal, Tim Mckechnie, Sudipta SealAbstract:The plasma spray Technique has been used by several researchers to deposit nanostructured ceramic coatings, but there is no available literature discussing how to fabricate a bulk, freestanding nanostructured component by such a Technique. In the current study, net shape nanostructured Al2O3 structures have been fabricated using the plasma spray Technique. A detailed characterization of the spray-formed Al2O3 structure has been performed using x-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), and microhardness measurements. This study validates the feasibility of rapid fabrication of freestanding, near net shape nanostructured Al2O3 components of larger size by plasma spray Forming Technique. Plasma spray parameters were controlled with a proprietary cooling Technique to retain a large fraction of nanosize Al2O3 powder particles in the spray deposit. Partially melted nanosize Al2O3 particles were trapped between the fully melted coarser, micrometer size Al2O3 grains. It was found that densification of the spray deposit has been dominated by both solidification and solid-state sintering. This study proves that a variety of nanostructured materials and their combinations can be fabricated to near net shapes by espousing a similar processing approach.
Luigino Filice - One of the best experts on this subject based on the ideXlab platform.
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on the high speed single point incremental Forming of titanium alloys
Cirp Annals-manufacturing Technology, 2013Co-Authors: Giuseppina Ambrogio, Francesco Gagliardi, Stefania Bruschi, Luigino FiliceAbstract:Abstract Single Point Incremental Forming processes show some limitations related to both dimensional accuracy and process slowness. The process slowness is here overcome by introducing the high speed Forming, which allows a reduction to less than 1 min of execution time of target components made in Titanium alloys. The paper is aimed at analyzing the influence of the feed increasing on the material quality in order to investigate if the development of high speed machines could be a suitable solution to implement more extensively the Single Point Incremental Forming Technique in practice. All the results are discussed in the paper.
Zhongke Wang - One of the best experts on this subject based on the ideXlab platform.
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mold free fabrication of 3d microfeatures using laser induced shock pressure
Applied Surface Science, 2013Co-Authors: Balasubramanian Nagarajan, Sylvie Castagne, Zhongke WangAbstract:Abstract This paper reports on the fabrication of microfeatures on metallic foils using laser-induced shock Forming without the assistance of micromold patterns. A mold-free laser shock Forming Technique, Flexible Pad Laser Shock Forming (FPLSF) has been developed and demonstrated to fabricate near-spherical microcraters on thin copper foils through the laser-generated plasma shock inducing plastic deformation on the copper foil. It is found that the crater formation strongly depends on the laser energy fluence applied to ablate an ablative overlay which is on top of the copper foil for plasma shock generation. Microfeatures with deformation depth of 80 μm to130 μm and radius of 485 μm to 616 μm were formed on 25 μm thick copper foils for the laser fluence of 7.3 J/cm 2 to 20 J/cm 2 while using aluminum foil as the ablative overlay and silicone rubber as a flexible support instead of a micromold. Fabrication of crater arrays on copper foils was also demonstrated successfully.
