Results 41 to 50 of about 875,844 (193)

A thermoviscoplastic model with damage for simultaneous hot/cold forging analysis [PDF]

open access: yes, 2013
A constitutive model is presented for simultaneous hot/cold forming processes of steels. The phenomenological material theory is based on an enhanced rheological model and accounts temperature dependently for nonlinear hardening, thermally activated ...
Bröcker, C., Matzenmiller, A.
core  

Decreased Specific Star Formation Rates in AGN Host Galaxies

open access: yes, 2015
We investigate the location of an ultra-hard X-ray selected sample of AGN from the Swift Burst Alert Telescope (BAT) catalog with respect to the main sequence (MS) of star-forming galaxies using Herschel-based measurements of the star formation rate (SFR)
Koss, Michael   +4 more
core   +1 more source

Damage Simulation of Pre-Forming V-Neck Plates with Variations in Material Type, Time and Temperature Using the Taguchi Method

open access: yesJournal of Mechanical Engineering Science and Technology, 2018
In metal forming, damage can be caused by several factors: load on the workpiece, initial heating temperature, and temperature due to the friction between the die and the material for pre-forming.
Avita Ayu Permanasari   +3 more
doaj   +1 more source

An infrared-submillimeter study of star-forming regions selected by the ISOSS 170um survey

open access: yes, 2008
Using the ISOPHOT Serendipity Survey (ISOSS) at 170um a sample of galactic star-forming regions exhibiting very cold dust temperatures (< 20 K) and high masses (> 100 M_sun) has been established.
Beuther   +43 more
core   +1 more source

Influence of tool wear on material flow [PDF]

open access: yes, 2017
The cold bulk forming is a technology that is commonly used in many industrial enterprises. Even though nowadays high demands are posed on labour productivity, quality and own production costs, the findings from practice suggest that not sufficient ...
Schindlerová, Vladimíra   +1 more
core   +3 more sources

Review of Contact and Dynamic Phenomena in Cold Roll Forming [PDF]

open access: yes, 2006
This review reflects the state of the art in study of contact and dynamic phenomena occurring in cold roll forming. The importance of taking these phenomena into account is determined by significant machine time and tooling costs spent on worn out ...
Daniel, William J. T.   +2 more
core  

Validation of a finite element model of the cold roll forming process on the basis of 3D geometric accuracy [PDF]

open access: yes, 2017
Cold roll forming is an incremental sheet metal forming process used to supply products to numerous industries such as automotive, architecture and construction, etc.
Blackwell, Paul   +3 more
core   +1 more source

A review on forming techniques for manufacturing lightweight complex—shaped aluminium panel components

open access: yesInternational Journal of Lightweight Materials and Manufacture, 2018
Aluminium alloys are being increasingly utilised in the automotive and aerospace industries to reduce the weight of vehicles. Extensive research has been conducted to overcome the poor ductility of aluminium alloys at room temperature and improve ...
Kailun Zheng   +3 more
doaj   +1 more source

Method for Controlling Edge Wave Defects of Parts during Roll Forming of High-Strength Steel

open access: yesMetals, 2021
Cold roll forming is suitable for sheet metal processing and can provide a new method for the production and processing of anti-collision beams for commercial vehicles. In order to accurately control the edge wave defects of the parts in the roll forming
Ce Liang   +3 more
doaj   +1 more source

A continuum model accounting for the effect of the initial and evolving microstructure on the evolution of dynamic recrystallization [PDF]

open access: yes, 2017
Laser assisted forming is a process which is increasingly being adopted by the industry. Application of heat by a laser to austenitic stainless steel (ASS) sheet provides local control over formability and strength of the material.
Kooiker, Harm   +2 more
core  

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