Results 331 to 340 of about 204,518 (380)

Formation of Seam and Charge Welds in 2D Extrusion Welding

AIP Conference Proceedings, 2011
The conditions of extrusion welding when extruding through an empty or a filled die is investigated by experiment combined by FEA. An experimental grid pattern technique has been successfully applied to study metal flow in both cases. Finite element models have been created using Deform 2D and 3D.
Yawar Abbas Khan, Henry Valberg, Francisco Chinesta, Yvan Chastel, Mohamed El Mansori   +4 more
openaire   +2 more sources

Numerical simulation of the formation of hourglass welds during laser welding

Journal of Materials Processing Technology, 2019
Abstract The purpose of this study is to understand the effect of laser welding parameters on the formation of hourglass shaped welds in low carbon steel. Transient laser welding is modeled in ANSYS to simulate the coupled heat-transfer/fluid-flow behavior that produces corresponding hourglass shaped melt pool geometry.
Bon Seung Koo, Pornsak Thasanaraphan, Herman F. Nied   +2 more
openaire   +2 more sources

Impact welding and ripple formation

Journal of Applied Physics, 1975
Rippled metallic surfaces have been produced as a result of ballistic impact as well as the movement of high-pressure (explosive) gas over a metal plate. Such loading conditions produce a strong shock wave. Under the high pressure, metal plate surfaces are plastically deformed and sometimes are welded together. These welds are sometimes associated with
openaire   +2 more sources

Effect of welding speed on weld formation in electron beam welding with continuous penetration

Welding International, 2014
Investigations were carried out into the conditions of free formation of welded joints in electron beam welding in the flat position with continuous penetration, and also into the dynamic model of the discharge of liquid metal of the weld pool from the root in which the metal moves downwards at a higher speed in the initial stage; but during movement ...
A. P. Sliva, A.V. Scherbakov, Ye.V. Terentyev, V K Dragunov   +3 more
openaire   +2 more sources

Experimental investigation of weld pool formation in electron beam welding

Vacuum, 1998
Abstract The energy transfer mechanism from an electron beam to a metal target, weld pool and keyhole of formation during electron beam welding was studied using a collector for secondary emitted particles, light photo diodes and CCD techniques. The physical processes in the welding pool and plasma cavity are discussed. It is shown that the nature of
Peter K. Petrov, Chavdar Georgiev, Georgy Petrov   +2 more
openaire   +2 more sources

Plasma formation in laser welding

Welding International, 2005
(2005). Plasma formation in laser welding. Welding International: Vol. 19, No. 10, pp. 808-813.
openaire   +2 more sources

Energy Parameters of Weld Formation Process in MIG-MAG Welding

Materials Science Forum, 2018
The article presents results of an experimental study and simulation of the effect of welding arc energy characteristics on the nature of electrode metal transfer in MIG-MAG welding. Based on the research results, a method has been developed for determining the coefficient of welding arc plasma flow pressure.
S.A. Solodsky, Volodymyr N. Sydorets, D A Chinakhov, P.V. Rodionov   +3 more
openaire   +2 more sources

Formation Mechanism of Diffusion Welded Joint [PDF]

Advanced Materials Research, 2011
In this study, solid state diffusion welding behavior of titanium alloys was investigated. Formation mechanism of diffusion welding process in six stages is proposed, which is based on cavitation process. The specimens were diffusion welded at elevated temperature under a hydrostatic pressure in an inert environment and the results confirmed the ...
Ho Sung Lee, Woo Hyun Cho, Jong Hoon Yoon   +2 more
openaire   +1 more source

Wave formation in explosive welding

The Philosophical Magazine: A Journal of Theoretical Experimental and Applied Physics, 1968
Abstract The interface between explosively welded metals frequently exhibits a regular wave-like profile. The circumstances under which such a profile develops are not fully understood, and existing theories fail to predict some of its observed characteristics.
openaire   +2 more sources

Modelling the process of formation of welding aerosol in welding of mining equipment

Welding International, 2012
The thermodynamic model of the formation of welding aerosol is proposed. The thermodynamic parameters of chemical compounds and aerosol phases are calculated. A program is proposed for the numerical calculation of the level of generation of various elements with the variation of the parameters which control the welding conditions.
L. G. Demenkova, V. M. Grishagin
openaire   +2 more sources