Results 31 to 40 of about 3,050,186 (298)

EXPERIMENTAL EVALUATION OF DRAW BEAD COEFFICIENT OF FRICTION

open access: yesActa Metallurgica Slovaca, 2017
In this paper the results of both friction coefficient and springback testing using a drawbead test are presented. Deep drawing quality steel sheet (DC04 according to EN 10130:2009 standard) was used as the test material.
Tomasz Trzepiecinski   +2 more
doaj   +1 more source

Forming Of Spherical Titanium Cups From Circular Blanks With Cutouts On The Perimeter

open access: yesArchives of Metallurgy and Materials, 2015
Despite substantial demand for drawn parts made of high-strength sheet metal (including titanium alloys) observed in the modern industry, particularly automotive and aviation, their application remains insignificant.
Lacki P.   +3 more
doaj   +1 more source

The Effect of Tool Path Strategy on Twist Behavior In Single Point Incremental Sheet Metal Forming

open access: yesJournal of Engineering, 2023
In Incremental sheet metal forming process, one important step is to produce tool path, an accurate tool path is one of the main challenge of incremental sheet metal forming process. Various factors should be considered prior to generation of the tool
Qasim Mohammed Doos Al Attaby   +2 more
doaj   +1 more source

Smaller is better: nanobodies meet NMR

open access: yesFEBS Letters, EarlyView.
Nanobodies are single‐domain antigen‐binding fragments derived from camelid heavy chain antibodies. Their small size, high stability, and exceptional specificity make nanobodies uniquely useful probes for NMR studies of protein dynamics, transient conformational states, and protein–protein interactions.
Oleg Y. Dmitriev
wiley   +1 more source

The Effects Of Friction On Stamping Process Of Sheet Metals Used In Aviation

open access: yesArchives of Metallurgy and Materials, 2015
An important factor in the possibility of obtaining correct drawn parts with the desired functional properties is the friction between the stamped sheet and the tool.
Dyja K., Więckowski W.
doaj   +1 more source

Structural and biochemical insights into the thermostable esterase Ta0887 from Thermoplasma acidophilum

open access: yesFEBS Open Bio, EarlyView.
In this study, a novel esterase from the thermoacidophilic archaeon Thermoplasma acidophilum was biochemically and structurally characterized. Our results demonstrate that Ta0887 is a highly thermostable esterase that preferentially hydrolyzes p‐nitrophenyl hexanoate and possesses an α‐helical cap domain that likely contributes to its substrate ...
Alejandro Delgado‐Rey   +4 more
wiley   +1 more source

Optimization of drawbead position in sheet metal forming [PDF]

open access: yesComputer Methods in Materials Science, 2003
In this paper the optimization of drawbead position based on sensitivity analysis is considered. The finite element simulation of sheet metal forming process and ?exact?, direct differentiation method (DDM) of sensitivity analysis are used.
Artur Marczewski, Włodzimierz Sosnowski
doaj   +1 more source

Application of the continuum shell finite element SHB8PS to sheet forming simulation using an extended large strain anisotropic elastic–plastic formulation [PDF]

open access: yes, 2012
http://link.springer.com/article/10.1007%2Fs00419-012-0620-xThis paper proposes an extension of the SHB8PS solid–shell finite element to large strain anisotropic elasto-plasticity, with application to several non-linear benchmark tests including sheet ...
BALAN, Tudor   +3 more
core   +1 more source

The C‐terminal domain of yeast Arginyltransferase1 is essential for its catalytic activity

open access: yesFEBS Open Bio, EarlyView.
Arginyltransferase 1 (Ate1), a eukaryotic enzyme, catalyses arginylation, transferring arginine from tRNA‐Arg to the amino terminus of the target protein. Overexpression of Ate1 in yeast is lethal and is dependent on arginylation. This study elucidates how mutations in the cofactor‐binding and active site of Ate1 and truncation of its structural ...
Vikas Kumar Yadav   +4 more
wiley   +1 more source

Finite element assisted prediction of ductile fracture in sheet bulging of magnesium alloys [PDF]

open access: yes, 2008
There is currently a growing demand for energy efficiency, particularly in reducing the rate of oil consumption. One solution in this area is for the aerospace and automotive industries to produce lighter vehicles that are more fuel efficient.
Hunt, David
core   +2 more sources

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