Results 11 to 20 of about 61,624 (261)

A WARM MODE OF GAS ACCRETION ON FORMING GALAXIES [PDF]

open access: yesThe Astrophysical Journal, 2012
We present results from high--resolution cosmological hydrodynamical simulations of a Milky--Way-sized halo, aimed at studying the effect of feedback on the nature of gas accretion. Simulations include a model of inter-stellar medium and star formation, in which SN explosions provide effective thermal feedback. We distinguish between gas accretion onto
Murante G.   +5 more
openaire   +3 more sources

A feasibility study on warm forming of an as-quenched 22MnB5 boron steel

open access: yesInternational Journal of Lightweight Materials and Manufacture, 2020
In this paper, the feasibility of a newly proposed forming method, being the warm forming of as-quenched 22MnB5 boron steels, was studied through a series of proof of concept experiments.
M. Ganapathy   +3 more
doaj   +1 more source

A Springback Prediction Model for Warm Forming of Aluminum Alloy Sheets Using Tangential Stresses on a Cross-Section of Sheet

open access: yesMetals, 2018
Warm U-draw bending tests were performed on a 5182 aluminum alloy under isothermal and non-isothermal conditions, and the amounts of springback under the corresponding conditions were measured.
Heung-Kyu Kim, Woo-Jin Kim
doaj   +1 more source

Star-forming filaments in warm dark matter models [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2015
8 pages, 7 figures. Accepted to MNRAS.
Gao, L., Theuns, T., Springel, V.
openaire   +5 more sources

In-Line Dimensional Inspection of Warm-Die Forged Revolution Workpieces Using 3D Mesh Reconstruction

open access: yesApplied Sciences, 2019
Industrial dimensional assessment presents instances in which early control is exerted among “warm” (approx. 600 ∘C) pieces. Early control saves resources, as defective processes are timely stopped and corrected.
Daniel Mejia-Parra   +7 more
doaj   +1 more source

Characterization of Ti-6Al-4V alloy in the temperature range of warm metal forming and fracture analysis of the warm capping process

open access: yesJournal of Materials Research and Technology, 2022
The flow behavior of a Ti–6Al–4V alloy during warm forming was characterized, and the results were analyzed to reveal the causes of fracture during warm forging of a small Ti–6Al–4V alloy bolt. The experimental flow curves obtained by compression test of
Su Min Ji   +5 more
doaj   +1 more source

Development of Warm Punch Using Friction Heat

open access: yesTribology Online, 2023
In press forming, most forming is performed cold. However, warm or hot forming is used for hard materials. In the present study, we focused on the heat generated by friction between metals and worked on the development of the warm punch that utilizes ...
Yasunori Harada, Taiki Takahara
doaj   +1 more source

Introduction and validation of a surrogate model for warm forming and cathodic dip treatment of EN AW-7075-T6 [PDF]

open access: yesMATEC Web of Conferences
For the production of safety-relevant automotive components, aluminium alloy EN AW-7075 is a promising substitute characterised by its high specific strength.
Jepkens Jan   +5 more
doaj   +1 more source

Investigation of the Flow Behaviour of Martensitic Steel at Elevated Temperatures Via Uniaxial Tensile Tests [PDF]

open access: yesArchives of Metallurgy and Materials
In recent years, advanced high strength steels have been the main choice of automobile manufacturers due to their excellent strengths and decent formability. In this study, the forming behaviour of a martensitic steel (MART 1200) at elevated temperatures,
N. Sen, T. Civek, O. Elkoca, E. Çevik
doaj   +1 more source

Warm forming simulation of Al–Mg sheet

open access: yesJournal of Materials Processing Technology, 2009
The accuracy of warm forming simulations depends to a large extend on the description of the yield surface with temperature and strain-rate dependent hardening and on the modeling of friction. In this paper, the anisotropic behavior of the sheet is described by using the Vegter yield locus, which is purely based on experimental measurements.
Kurukuri, S.   +3 more
openaire   +1 more source

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