Results 1 to 10 of about 95,970 (164)

A Multilevel Algorithm for Force-Directed Graph-Drawing [PDF]

open access: yesJournal of Graph Algorithms and Applications, 2003
We describe a heuristic method for drawing graphs which uses a multilevel framework combined with a force-directed placement algorithm. The multilevel technique matches and coalesces pairs of adjacent vertices to define a new graph and is repeated ...
Chris Walshaw
doaj   +5 more sources

Optimization and Mapping of the Deep Drawing Force Considering Friction Combination

open access: yesApplied Sciences, 2021
Deep drawing is characterized by extremely complex deformation that is influenced by process characteristics such as die and punch shapes, blank shape, blank holding force, material properties, and lubrication.
Hussein Zein, Osama M. Irfan
doaj   +3 more sources

Experimental Determination and Calculation of the Wire Drawing Force in Monolithic Dies on Straight-Line Drawing Machines

open access: yesMachines, 2023
In this article, a mathematical model has been developed for calculating the energy-power parameters of the drawing process in monolithic dies on straight-line drawing machines, and its adequacy has been validated in experimental wire drawing on a ...
Liudmila V. Radionova   +3 more
doaj   +3 more sources

Experimental and theoretical examination and development of methods to calculate required pull force in wire drawing

open access: yesHeliyon
Wire drawing is one of the oldest and most common cold metal forming processes. Wire is drawn through a single die or a set of conical dies to make it longer and stronger.
Joakim Larsson   +2 more
doaj   +3 more sources

Experimental and Theoretical Analysis to Produce Pentagonal Cup in Deep Drawing Process [PDF]

open access: yesEngineering and Technology Journal, 2023
The manufacturing industry heavily relies on deep drawing due to its remarkable ability to produce intricate symmetrical and asymmetrical shapes with accuracy and efficiency.
Zainab Mohsen, Waleed Jawad, Assel Abed
doaj   +1 more source

Numerical simulation of the influence of lap length on the load-bearing capacity of steel wire rope core conveyor belt joints

open access: yesGong-kuang zidonghua, 2023
The drawing force of the steel wire rope in the joint area of the conveyor belt is an important indicator to measure the bearing capacity of the joint.
JING Qinghe   +8 more
doaj   +1 more source

Predicting the Burnishing Force for Cylindrical Workpieces with Amodified Surface Layer

open access: yesJournal of Mechanical Engineering, 2022
A mathematical module for predicting and analysing the drawing forces is formed and verified. The process used in the current study is drawing. Geometric parameters of the deformation zone and the “selective transfer phenomenon” are also taken into ...
Fanidi Omar   +2 more
doaj   +1 more source

Application of a Special Profile Deforming Tool for Intensification of the Extrusion Process in Radial Matrixes

open access: yesMechanics and Advanced Technologies, 2020
Calculated analysis of the extraction of axisymmetric hollow products from low carbon steel using a special profile deforming tool were carried out by the Finite Element Method. An elastic-plastic model of the workpiece metal was used.
Volodymyr Kaliuzhnyi   +1 more
doaj   +1 more source

Finite Element Analysis on Ultrasonic Drawing Process of Fine Titanium Wire

open access: yesMetals, 2020
Ultrasonic drawing is a new technology to reduce the cross-section of a metallic tube, wire or rod by pulling through vibrating dies. The addition of ultrasound is beneficial for reducing the drawing force and enhancing the surface finish of the drawn ...
Shen Liu   +3 more
doaj   +1 more source

THE POSSIBILITIES FOR APPLICATION OF NUMERICAL SIMULATION IN THE IRONING PROCESS OF THIN SHEETS [PDF]

open access: yesProceedings on Engineering Sciences, 2019
In this research, results of experimental investigations and physical model were used as the input variables for numerical analysis of the ironing strip drawing process by application of lubricants.
Milan T. ĐORĐEVIĆ   +5 more
doaj   +1 more source

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