نتایج جستجو برای: powder forging
تعداد نتایج: 50116 فیلتر نتایج به سال:
This paper deals about the texture analysis of sinter-forging (Bi, Pb)2Sr2Ca2Cu3O10+δ (Bi2223) discs and YBa2Cu3O7−x (Y123) foams. Orientation distributions were measured by X-ray and neutron diffraction respectively. In the case of Bi2223 samples, an overview of our results is presented. It reflects clearly the importance to combine physical measurements and texture analysis. Several factors a...
Powder metallurgy is one way of producing complex, graded structures that could allow material systems to be produced with properties tailored individual applications. However, powder requires the semi-finished products are very similar final component. It much more economical produce simple and then combine them by forging simultaneous compaction than forming complex components desired structu...
To realize large wind power plants in an economically feasible way, it is necessary to identify potential for lightweight design of the generator hollow-shafts, which are commonly produced by casting. The weight of these shafts can significantly be reduced by producing them by open-die forging, since the forming of the material leads to a higher strength, which allows to reduce the wall thickne...
this paper presents a hybrid method for the optimization of forging process of an aerofoil blade. preform shape and die parting-line angle are optimized in order to minimize the volume of the unfilled die cavity, material waste, forging forces. the overall optimization scheme used in this research work includes a multi-objective approach that is combination of response surface and finite elemen...
in this paper, based on the slab method of analysis, a novel and general approach isdeveloped for studying the radial forging process with curved profile dies. the presented approachis not only more general with respect to previous studies, but it is also easier to understand and useand can be efficiently used for optimization of the die profile depending on the forging geometryand conditions. ...
Crankshafts are the most important loaded components in the case of an automobile. In order to achieve required mechanical properties most of crankshafts for automobile are forged with micro alloyed steel. Usually, the shapes of crankshafts are complex, and many defects are induced during the process of crankshaft forging such as under-filling, laps and folds etc. In this work the forging analy...
The operating environment in an engine can have negative effects on the performance of connecting rods, as it is well-known that the strength of most steels quickly deteriorates at higher temperatures. Although the mechanical properties of the materials used to manufacture connecting rods have been widely characterized at room temperature, their strength has not been investigated at higher temp...
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