Results 11 to 20 of about 32,436 (283)
Study on the influence of temperature on the surface asperity in micro cross wedge rolling [PDF]
When the common deformation processes are scaled down to micro/meso dimensions, size effect is the particular phenomena in microforming, which is related to the dominant influence of single grains inside the micropart.
Jiang, ZY +4 more
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The paper presents a selection of numerical and theoretical results of the cross wedge rolling process for producing stepped shafts made of aluminum alloy 6061. The numerical modeling was performed using the FEM-based Simufact Forming simulation software.
Tofil A., Tomczak J., Bulzak T.
doaj +1 more source
The Ascending Double-Cone: A Closer Look at a Familiar Demonstration [PDF]
The double-cone ascending an inclined V-rail is a common exhibit used for demonstrating concepts related to center-of-mass in introductory physics courses. While the conceptual explanation is well-known--the widening of the ramp allows the center of mass
Efthimiou, Costas J., Gandhi, Sohang C.
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Study of stress-strain state during cross-wedge rolling with one tool
The peculiarity of cross-wedge rolling with one tool is the workpiece deformation with one tool and the fact that the workpiece is not supported with the tool from the opposite side.
G. V. Kozhevnikova
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Compliant rolling-contact architected materials for shape reconfigurability. [PDF]
Architected materials can achieve impressive shape-changing capabilities according to how their microarchitecture is engineered. Here we introduce an approach for dramatically advancing such capabilities by utilizing wrapped flexure straps to guide the ...
Chizari, Samira +4 more
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Forming technique for the input shaft of a vehicle gearbox
The input shaft is an important part in a vehicle gearbox. A novel compound forming technique was designed due to the special structure of an input shaft.
LI Zhi +3 more
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Cavity formation in cross-wedge rolling processes [PDF]
The problem of end-face cavity formation in parts produced by cross-wedge rolling was studied in order to reduce material consumption. The cavity depth was measured by the displacement method. Twenty-one different cases of rolling were analysed by finite element method to determine the effects of process parameters such as the wedge tool angle, the ...
Zbigniew Pater +2 more
openaire +1 more source
Wall thickness uniformity of railway hollow shafts by cross-wedge rolling
Wall thickness uniformity is an important quality criterion of railway hollow shafts by multi-wedge synchrostep cross wedge rolling. The stable rolling condition of railway hollow shafts in this rolling process is analyzed,and a flattening instability ...
ZHENG Shu-hua +3 more
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Non-contact ultrasonic detection of angled surface defects [PDF]
Non-destructive testing is an important technique, and improvements are constantly needed. Surface defects in metals are not necessarily confined to orientations normal to the sample surface; however, much of the previous work investigating the ...
Clough, A. R. +3 more
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Novel cross wedge rolling method for producing railcar axles
Abstract Railcar axles are large-size parts manufactured in large batches using forging methods. More efficient methods of manufacturing railcar axles are currently being sought. A promising line of research in this respect is connected with the use of cross wedge rolling (CWR).
Zbigniew Pater +2 more
openaire +1 more source

