Results 51 to 60 of about 309,917 (203)

Graphite composite truss welding and cap section forming subsystems. Volume 1: Executive summary [PDF]

open access: yes
A rolltrusion process was developed for forming of a hybrid, single-ply woven graphite and glass fiber cloth, impregnated with a polysulfone resin and coated with TI02 pigmented P-1700 resin into strips for the on-orbit fabrication of triangular truss ...

core   +1 more source

Optimization of Roll Configuration and Investigation of Forming Process in Three-Roll Planetary Rolling of Stainless Steel Seamless Tubes

open access: yesMetals
Three-roll planetary rolling technology has emerged as a primary method for manufacturing seamless tubes due to its advantages, including significant single-pass deformation, low energy consumption, and the ability to continuously roll long workpieces ...
Chuanchuan Ma   +6 more
doaj   +1 more source

Simulation Analysis of Face Gear Roll Forming

open access: yesJixie chuandong, 2022
Based on the roll deformation theory,a roll model through Deform-3D finite element simulation software is established,the roll forming process of the face gear is analyzed and the metal flow conditions of the active and passive faces of the face gear ...
Guang Zhang   +3 more
doaj  

Development of a technique for forming helical coils Final report [PDF]

open access: yes
Roll forming technique for fabricating helical coils for use as recording surfaces in tape ...
Stapf, W. E.
core   +1 more source

Study of spiral pattern formation in Rayleigh-Benard convection

open access: yes, 1992
We present a numerical study of a generalized two-dimensional Swift-Hohenberg model of spiral pattern formation in Rayleigh-B\'enard convection in a non-Boussinesq fluid.
Gunton, J. D.   +2 more
core   +1 more source

Design and Analysis of Involute Spline Cold Roll Forming Machine

open access: yesJixie chuandong, 2019
At present, the design and manufacture of the domestic spline cold roll forming machine are mainly based on the experimental data, and theoretical studies are still insufficient.
Yanyang Wang   +5 more
doaj  

Numerical analysis of integrated forming process of diagonal rolling and piercing of flange nuts

open access: yesMetalurgija, 2023
In this paper, Simufact FE software is used to establish a simulation model of three-roll diagonal roll piercing integrated forming flange nut blanks, elaborate its process principle, analyze its forming process through numerical simulation.
F. Lin   +4 more
doaj  

Domain wall dynamics in an optical Kerr cavity

open access: yes, 2005
An anisotropic (dichroic) optical cavity containing a self-focusing Kerr medium is shown to display a bifurcation between static --Ising-- and moving --Bloch-- domain walls, the so-called nonequilibrium Ising-Bloch transition (NIB).
Eugenio Roldán   +6 more
core   +1 more source

Primordial black holes from the QCD epoch: Linking dark matter, baryogenesis and anthropic selection

open access: yes, 2020
If primordial black holes (PBHs) formed at the quark-hadron epoch, their mass must be close to the Chandrasekhar limit, this also being the characteristic mass of stars.
Carr, Bernard   +2 more
core   +1 more source

Inline monitoring of material properties and product shape in roll forming [PDF]

open access: yesMATEC Web of Conferences
Roll-forming processes generally require limited actions by the operator if the incoming material remains stable. If the material parameters change between coils the part shape can change.
Essa Abdelrahman   +3 more
doaj   +1 more source

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