Numerical Study of the Mechanism of Wavy Interface Generation in Explosive Welding.

Explosive welding of a thin magnesium plate onto some metal plates was performed by using underwater explosive welding technique developed by some of the authors. The experimental results show that the wavy interface which is typically found in the well-bonded clad was observed. The welding condition is discussed using the welding window based on the numerically simulated results using AUTODYN-2D code.

Download Full-text

Numerical study on the effect of thermal conduction on explosive welding interface

The International Journal of Advanced Manufacturing Technology ◽

10.1007/s00170-019-04054-w ◽

2019 ◽

Vol 104 (5-8) ◽

pp. 2607-2617

Author(s):

Xiang-yu Zeng ◽

Xue-qi Li ◽

Xiao-jie Li ◽

Fei Mo ◽

Hong-hao Yan

Keyword(s):

Thermal Conduction ◽

Explosive Welding ◽

Numerical Study ◽

Welding Interface

Download Full-text

Numerical Studies of Explosive Welding by SPH

Materials Science Forum ◽

10.4028/www.scientific.net/msf.566.61 ◽

2007 ◽

Vol 566 ◽

pp. 61-64 ◽

Cited By ~ 8

Author(s):

Katsumi Tanaka

Keyword(s):

Explosive Welding ◽

High Speed ◽

Weld Interface ◽

Oblique Impact ◽

Major Mechanism ◽

Particle Hydrodynamics ◽

Detached Shock Wave ◽

Smoothed Particle ◽

Wavy Interface ◽

Karman Vortex

A particular characteristic of an explosively produced weld is that the profile of the weld interface often has a regular wavy appearance. An effect of detached shock wave and jetting on the metal interface of explosive welding has been shown by SPH (Smoothed particle hydrodynamics). Numerical results show wavy interface which is observed in several experiments. High speed jet between interface and Karman vortex after oblique impact of a flyer plate to a parent plate were major mechanism of explosive welding.

Download Full-text

Numerical Study on the Influence of Different Anvils on Explosive Welding

Materials Science Forum ◽

10.4028/www.scientific.net/msf.767.114 ◽

2013 ◽

Vol 767 ◽

pp. 114-119 ◽

Cited By ~ 4

Author(s):

Jian Rui Feng ◽

Peng Wan Chen ◽

Kai Da Dai ◽

Er Feng An ◽

Yuan Yuan

Keyword(s):

Shock Wave ◽

Shock Waves ◽

Efficient Method ◽

Explosive Welding ◽

Welded Joint ◽

Numerical Study ◽

Additional Structure ◽

Sensitive Structure

Explosive welding is an efficient method for metals welding. However, in explosive welding, the shock wave generated by the explosion can not only damage the sensitive structure in the area of the process, but also can actually destroy a welded joint immediately after its creation. By placing an additional structure (anvil) can reduce the influence of shock waves. The influence of different anvil on the explosive welding of aluminum and magnesium plates has been investigated by using AUTODYN Software in this paper. The results show that the steel anvil is much more appropriate than sand and magnesium.

Download Full-text

Explosive Welding of Molybdenum/Copper Using Underwater Shock Wave

Materials Science Forum ◽

10.4028/www.scientific.net/msf.706-709.735 ◽

2012 ◽

Vol 706-709 ◽

pp. 735-740 ◽

Cited By ~ 4

Author(s):

Palavesamuthu Manikandan ◽

Joo Noh Lee ◽

Akihisa Mori ◽

Kazuyuki Hokamoto

Keyword(s):

Shock Wave ◽

Explosive Welding ◽

Microstructural Characterization ◽

Visual Observation ◽

Underwater Shock Wave ◽

Wavy Interface ◽

Underwater Shock ◽

Weldability Window ◽

The Right ◽

Welding Technique

In this research, surface modification of copper with molybdenum was made using explosive welding technique. The underwater shock waves derived from the detonation of explosives was used to bond thin films of molybdenum on copper. Visual observation shows a sound joining of Mo/Cu. Microstructural characterization reveals the bonding interface with a clear wave formation between the participant metals. A clear wavy interface is formed when the weldable conditions lie in the weldability window. When the weldable conditions lie near the right limit or lower limit, a jet trapped region was formed.

Download Full-text

On the transition from a waveless to a wavy interface in explosive welding

Materials Science and Engineering ◽

10.1016/0025-5416(87)90300-4 ◽

1987 ◽

Vol 91 ◽

pp. 217-222 ◽

Cited By ~ 39

Author(s):

D. Jaramillo ◽

A. Szecket ◽

O.T. Inal

Keyword(s):

Explosive Welding ◽

Wavy Interface

Download Full-text

Analysis of Asymmetrical Rolling Process of Multilayer Plates

Solid State Phenomena ◽

10.4028/www.scientific.net/ssp.165.348 ◽

2010 ◽

Vol 165 ◽

pp. 348-352 ◽

Cited By ~ 3

Author(s):

Robert Skoblik ◽

Dariusz Rydz ◽

Grzegorz Stradomski

Keyword(s):

Finite Element Method ◽

Numerical Modeling ◽

Aluminium Alloys ◽

Explosive Welding ◽

Numerical Study ◽

Rolling Process ◽

Pure Aluminium ◽

Asymmetrical Rolling ◽

Explosive Cladding ◽

Welding Technology

. Literature provides three basic methods of explosive cladding, developed by Darenport and Person. Welding trials were performed in two- and three-layer arrangements, where in the second case, copper plates were welded with plates made from aluminium alloys with an interlayer of pure aluminium. Explosive welding technology does not always allow for joining of sheets of specific thicknesses. In order to obtain such thickness, they need to be rolled. The paper presents results of numerical study of asymmetrical rolling process of multilayer plates M1E-Al99.8-AlMg5. Numerical modeling of rolling of multilayer plates was realized by means of Forge 2D program that is based on finite element method. Obtained research results enabled to elucidate the process of rolling of multilayer plates.

Download Full-text