Results 21 to 30 of about 64,384 (262)

Warm forming simulation of Al–Mg sheet

Journal 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., van den Boogaard, A.H., Miroux, A., Holmedal, B.   +3 more
openaire   +1 more source

Urban form, urban warming and time

, 2022
Eine Schlüsselrolle für das thermische Verhalten und die Ausbildung von städtischen Wärmeinseln der Städte besitzt die Stadtstruktur, die raum-zeitliche, zwei- und dreidimensionale Anordnung der materiellen Bestandteile von Städten (\(\textit {urban form}\)).
openaire   +2 more sources

Effect of Process Parameters on Formability of a AZ31 Magnesium Alloy Thin-Walled Cylindrical Part Formed by Multistage Warm Single-Point Incremental Forming

Frontiers in Materials, 2020
Magnesium alloys have many distinguished advantages; therefore, they are more and more popularly used in lightweight design of automotive and aviation manufacturing industries.
Zhi-guo An, Dong Yan, Jian-jian Qie, Zai-liang Lu, Zheng-yuan Gao   +4 more
doaj   +1 more source

Predicting the Warm Forming Behavior of WE43 and AA5086 Alloys [PDF]

Procedia Engineering, 2017
In the present work, we have studied the formability behaviour of two types of magnesium alloys, WE43 hot rolled and WE43 cold rolled by carrying out uniaxial tensile test at elevated temperatures of 350 °C to 500 °C both experimentally and numerically at a constant strain rate of 10-3s-1.
Kapoor, Ishwar, Narayanan, R Ganesh, Taylor, Scott, Janik, Vit, Dashwood, R. J.   +4 more
openaire   +1 more source

A Microstructure-Integrated Ductile Fracture Criterion and FE-Based Framework for Predicting Warm Formability of AA7075 Sheets

Metals
Variations in the warm formability of AA7075 sheets are primarily attributed to differences in precipitate morphology resulting from distinct thermal histories.
Wan-Ling Chen, Rong-Shean Lee
doaj   +1 more source

Warm Hydroforming Process under Non-Uniform Temperature Field for Magnesium Alloy Tubes

Metals, 2021
The warm tube hydroforming (WTHF) process of lightweight materials such as magnesium alloy contributes to a remarkable weight reduction. The success of the WTHF process strongly depends on the loading path with internal pressure and axial feeding and ...
Toshiji Morishima, Ken-Ichi Manabe
doaj   +1 more source

Investigation on the effect of pressure rate on formability of aluminum alloy during warm/hot sheet hydroforming

AIP Advances, 2018
Warm/hot sheet bulging tests of 2A16-O aluminum alloy were conducted using elliptical bulging dies under various temperatures and pressure rates, in an effort to investigate the macroscopic and microscopic influence of the pressure rate on the ...
Gaoshen Cai, Chuanyu Wu, Zepu Gao, Lihui Lang, Sergei Alexandrov   +4 more
doaj   +1 more source

Effect of Forming Temperature on Linear Roll Forming of 6011 Aluminum Sheets: An Analysis Based on Experimental Design

Journal of Manufacturing and Materials Processing
This study analyzed the effect of forming temperature on the roller hemming process of AA6011-T4 aluminum alloy sheets, using a 2K factorial design to also evaluate the influence of roller diameter and flange height. A total of 24 experimental tests were
Luis Andrés García Velásquez, Pablo Alberto Limon-Leyva, Ian Sosa-Tinoco, Eusebio Jiménez López, Antonio de J. Balvantin-Garcia   +4 more
doaj   +1 more source

Research on Al-alloy sheet forming formability during warm/hot sheet hydroforming based on elliptical warm bulging test

AIP Advances, 2018
An elliptical warm/hot sheet bulging test under different temperatures and pressure rates was carried out to predict Al-alloy sheet forming limit during warm/hot sheet hydroforming.
Gaoshen Cai, Chuanyu Wu, Zepu Gao, Lihui Lang, Sergei Alexandrov   +4 more
doaj   +1 more source

Reconstructing enzyme evolution by protein engineering

FEBS Letters, EarlyView.
Natural enzyme evolution can be retraced by protein engineering methods such as directed evolution, rational design, and ancestral sequence reconstruction. These approaches reveal how enzymes emerged from ligand‐binding scaffolds, developed varying substrate preferences, formed oligomeric complexes, adapted to environmental changes, and evolved novel ...
Lukas Drexler, Markus R. Busch, Reinhard Sterner   +2 more
wiley   +1 more source