Results 11 to 20 of about 2,512,776 (299)

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

Acquisition and Evaluation of Theoretical Forming Limit Diagram of Al 6061-T6 in Electrohydraulic Forming Process

open access: yesMetals, 2019
The current study examines the forming limit diagram (FLD) of Al 6061-T6 during the electrohydraulic forming process based on the Marciniak–Kuczynski theory (M-K theory).
Min-A Woo   +3 more
doaj   +2 more sources

Monotonic forming processes in cold forming and application for determination of forming limit diagram [PDF]

open access: yes, 2018
Istraživanja prikazana u disertaciji imala su za cilj razvoj monotonih modela deformisanja u cilju njihove primene za određivanje dijagrama granične deformabilnosti. Kombinacijom različitih geometrija uzoraka, geometrije alata i triboloških uslova razvijeni su monotoni modeli deformisanja koji su promenjeni za određivanje dijagrama granične ...
Ivanišević, Aljoša
core   +8 more sources

Finite Element Analysis on Experimental Stretch Forming Process of AA2014 Alloy at 423 to 623K Temperatures [PDF]

open access: yesE3S Web of Conferences, 2023
Sheet metal forming processes are extremely important in the production of many different items. However, the issue of plastic instability, which frequently results in damaged goods, still exists in this industry. To solve this problem during production,
Lade Jayahari   +6 more
doaj   +1 more source

Study of Formability of Brass Sheet Metal Under Different Temperature Conditions [PDF]

open access: yesE3S Web of Conferences, 2023
In the present work focus devoted to the results obtained from uniaxial tensile test were utilized to analyze flow stress behavior of brass under different orientation, temperature and strain rate conditions and the study of forming limit diagrams for ...
Singh V. Dharma   +2 more
doaj   +1 more source

Experimental study on influence of ultrasonic vibration on forming limit

open access: yesMechanics & Industry, 2022
Applying ultrasonic vibration in sheet metal forming can change its forming mechanism and improve its formability. The uniaxial tensile and bulging forming limit experimental setups were designed to study the ultrasonic vibration and forming limit ...
Zha Changli, Zha Shenlong
doaj   +1 more source

Theoretical Determination of Forming Limit Stress Diagram for Steel 1021 Sheet

open access: yesTikrit Journal of Engineering Sciences, 2010
Forming limit stress diagram represent the maximum acceptable limits of principal stresses in sheet metal forming. This diagram show the limits of major and minor true stresses for different strain paths (uniaxial tension, plane strain and equibiaxial ...
Anas O. Balod
doaj   +1 more source

The Forming Limit Diagrams of a Brass Sheet

open access: yesJSME international journal. Ser. 1, Solid mechanics, strength of materials, 1987
The forming limit diagrams of proportionally pre-strained brass sheets are experimentally determined for a combination of uniaxial and equi-biaxial tension. From these FLDs and the theoretical ones which are predicted by the use of a new plastic constitutive equation previously proposed by one of the authors (Gotoh) and a local necking condition, the ...
GOTOH, Manabu   +2 more
openaire   +3 more sources

Experimental and Numerical Analysis of Prestrain on the Formability of Zn-Cu-Ti Alloy Zinc Sheet

open access: yesMetals, 2022
The forming limit diagrams (FLDs) characterizing the formability of sheet metals are usually obtained by applying proportional loadings. Nevertheless, the industrial processes involve strain path changes that can modify the limit-strain values.
Emanuel A. Nicoletti   +4 more
doaj   +1 more source

Forming Limit Diagram of the AMS 5599 Sheet Metal

open access: yesArchives of Metallurgy and Materials, 2013
Zdolność do przyjmowania odkształceń plastycznych podczas kształtowania blach zależy od ich właściwości mechanicz- nych Odkształcalność blach zależy od rodzaju materiału - a ponadto, materiał który wykazuje dobrą odkształcalność podczas kształtowania ...
Fracz W.   +3 more
doaj   +1 more source

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