Results 11 to 20 of about 71,625 (304)

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

Construction of Forming Limit Diagram for Sheet Blanks from Aviation Aluminum Alloys

open access: yesAdvanced Engineering Research, 2023
Introduction. The modern development of stamping aircraft manufacturing is inextricably linked with the assessment of the limiting capabilities of sheet blanks.
S. I. Feoktistov, I. K. Andrianov
doaj   +2 more sources

Prediction and Verification of Forming Limit Diagrams Based on a Modified Shear Failure Criterion

open access: yesChinese Journal of Mechanical Engineering, 2023
The forming limit diagram plays an important role in predicting the forming limit of sheet metals. Previous studies have shown that, the method to construct the forming limit diagram based on instability theory of the original shear failure criterion is ...
Haibo Wang   +3 more
doaj   +2 more sources

Experimental and Numerical Analysis of Forming Limit Diagram (FLD) and Forming Limit Stress Diagram (FLSD)

open access: yesMaterials Sciences and Applications, 2011
In this work, forming limit diagram for aluminum alloy 3105 is performed experimentally and forming limit based on stress (FLSD) calculated from strains that resulted from experimental procedure. In addition, numerical prediction by ductile fracture criteria using simulation is considered and it is shown that they are well suited with the experimental ...
Mehdi Safari   +2 more
exaly   +3 more sources

Obtaining Forming Limit Diagram Using OpenCV [PDF]

open access: yes한국정밀공학회지
The Forming Limit Diagram (FLD) is a criterion used to assess the formability of sheet metal during a manufacturing process. Traditionally, FLDs are obtained through manual measurements using Mylar tape or through the use of automatic deformation ...
Min Seok Kim, Jeong Kim
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

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   +2 more sources

Analysis of the metal sheets formability at single point incremental forming process [PDF]

open access: yesMATEC Web of Conferences, 2022
Although research on incremental forming process began a few decades ago, it is still a process in development phase. Single point incremental forming is a simple process and the deformation of the sheet blank is done with the help of a punch that ...
Rusu Gabriela-Petruţa   +4 more
doaj   +1 more source

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   +4 more sources

Determination Formability of Tubular (AL-alloy) by Hydraulic Bulge Test [PDF]

open access: yesEngineering and Technology Journal, 2016
This study aims to establish the forming limit diagrams of tubular material by bulge test.The bulge test applies internal (hydraulic) pressurewith and without applied axial feeding on tubularspecimen causing tube expansion, undergoing plastic deformation
Azal Rifaat Ismail, Waqass saad
doaj   +1 more source

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