Results 11 to 20 of about 1,062 (237)

Affecting the Determination of Forming Limit Diagram for Sheet Metals

open access: yesTikrit Journal of Engineering Sciences, 2005
The sheet metal forming is defined as the ability of metal to deform plastically (stretch forming) without necking or fracture. To control the sheets forming operation failure a diagram is used , in which the ; accepted forming , failure and critical ...
Walid Jalal Ali, Anas Obed Idres
doaj   +2 more sources

Computational analysis of stress-based forming limit curves

open access: yesInternational Journal of Solids and Structures, 2007
AbstractThis article, through computational analyses, examines the validity of using the stress-based and extended stress-based forming limit curves to predict the onset of necking during proportional loading of sheet metal. To this end, a model material consisting of a homogeneous zone and a zone that has voids (material inhomogeneity) is proposed and
Simha, C. Hari Manoj   +2 more
openaire   +2 more sources

Comparative Evaluation of Forming Limit Curve Models for AlMg Alloys

open access: yesEngineering Proceedings
This publication deals with the comparative analysis of theoretical and empirical models suitable for predicting forming limit curves in the case of aluminum–magnesium alloys.
Dóra Harangozó, Imre Czinege
doaj   +2 more sources

STUDY ON WARM FORMING LIMIT PREDICTION OF ADVANCED HIGH STRENGTH STEEL DP780 SHEET METAL

open access: yesJixie qiangdu, 2021
In order to accurately predict the forming limit curve of DP780 steel sheet under the condition of warm forming,the ductile fracture prediction model was introduced into the numerical simulation.
WANG KaiDi   +5 more
doaj   +2 more sources

Determination of the forming limit diagram of zinc electro-galvanized steel sheets

open access: yesMetalurgija, 2012
Forming limit curves (FLC) of deep drawing steel sheets have been determined experimentally and calculated on the base of the material tensile properties following the Hill, Swift, Marciniak-Kuczyński and Sing-Rao methods.
W. Fracz, F. Stachowicz
doaj   +1 more source

A Review on Sheet Metal Forming Behavior in High-Strength Steels and the Use of Numerical Simulations

open access: yesMetals
High-strength steels such as Dual Phase (DP), Transformation-Induced Plasticity (TRIP), and Twinning-Induced Plasticity (TWIP) steels have gained importance in automotive applications due to the potential for weight reduction and increased performance in
Luis Fernando Folle   +6 more
doaj   +2 more sources

Predicting the fracture forming limit of 5754-O aluminum alloy by finite element simulation

open access: yesMaterials Research Express
Aluminum alloy has the advantages of low specific gravity, easy processing and good welding performance, so it is widely used on automobiles to achieve lightweighting.
Bin Yan   +3 more
doaj   +2 more sources

Prediction of forming limit curve for AA6061-T6 at room and elevated temperatures

open access: yes, 2022
International audienceAbstract Forming Limit Curve (FLC) has been widely adopted as a practical criterion for evaluating the formability of sheet metals.
Thuillier, Sandrine   +2 more
core   +1 more source

Exceeding the Forming Limit Curve with Deep Drawing Followed by Electromagnetic Calibration [PDF]

open access: yes, 2012
We show that the materials quasi-static forming limit curve (FLC) can be exceeded by the process chain composed of deep drawing followed by electromagnetic forming. We form circular cups as close as possible to the FLC by deep drawing.
Tekkaya, A. E.   +3 more
core   +1 more source

INVESTIGATION INTO REASONS FOR MINIMUM MAJOR STRAIN OFFSETTING OF FORMING LIMIT CURVE OBTAINED WITH NAKAJIMA TEST FOR AA 2024-T4 [PDF]

open access: yes, 2014
In a typical forming limit curve (FLC), the minimum major strain where the minor value is equal to zero is located at y axes. In many forming processes, failure occurs at this region.
Ozturk, Fahrettin   +2 more
core   +6 more sources

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