New explosive welding technique to weld

1993 ◽  
Vol 24 (10) ◽  
pp. 2289-2297 ◽  
Author(s):  
K. Hokamoto ◽  
T. Izuma ◽  
M. Fujita
Keyword(s):  
Explosive Welding ◽  
Welding Technique

Underwater Explosive Welding of Thin Magnesium Plate onto some Metal Plates

2007 ◽  
Vol 566 ◽  
pp. 303-308
Author(s):  
Akihisa Mori ◽  
Kazuyuki Hokamoto ◽  
Masahiro Fujita
Keyword(s):  
Explosive Welding ◽  
Experimental Results ◽  
Welding Condition ◽  
Metal Plates ◽  
Wavy Interface ◽  
Welding Technique

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.

A Study on the Explosive Welding of Three-Layer Panel

2014 ◽  
Vol 926-930 ◽  
pp. 354-357 ◽  
Author(s):  
Mian Jun Duan ◽  
Yao Hua Wang ◽  
Jin Hong ◽  
Jing Rong Zhou ◽  
Rui Ma
Keyword(s):  
Explosive Welding ◽  
Composite Panel ◽  
Titanium Plate ◽  
Alloy Plate ◽  
Metallurgical Bonding ◽  
Layer Composite ◽  
Shearing Strength ◽  
Wave Morphology ◽  
Moderate Condition ◽  
Welding Technique

Using an adjusted explosive welding technique, a Zr-2 alloy plate, a titanium plate and a carbon steel plate were cladded to form a three-layer composite panel which is difficult to manufacture by common methods. Microstructural evaluations reveal that a metallurgical bonding interface with wave morphology is realized, and the grains near the interface are smaller than grains in other areas. The microhardness of the sample near the interface is greatly higher than that of other areas. Furthermore, mechanical experimental evidence indicates the shearing strength of the interface in the moderate condition exceeds that of the interlayer plate.

Heat Transfer Performance of Water Flow in Porous Copper Pipes Fabricated by Explosive Welding Technique

2018 ◽  
Vol 2018 (0) ◽  
pp. 0175
Author(s):  
Yuki Abe ◽  
Kazuhisa Yuki ◽  
Yoshiaki Sato ◽  
Risako Kibushi ◽  
Noriyuki Unno ◽  
...  
Keyword(s):  
Heat Transfer ◽  
Water Flow ◽  
Explosive Welding ◽  
Heat Transfer Performance ◽  
Transfer Performance ◽  
Porous Copper ◽  
Welding Technique

The Design of Supercritical Liquid Pipe for Organic Material Treatment

2003 ◽  
Author(s):  
Hirofumi Iyama ◽  
K. Raghukandan ◽  
Shigeru Itoh
Keyword(s):  
Explosive Welding ◽  
Environmental Problem ◽  
Process Development ◽  
Woody Biomass ◽  
Added Value ◽  
Waste Plastic ◽  
Medical Supplies ◽  
Oil Shock ◽  
Supercritical Treatment ◽  
Welding Technique

The supercritical liquid discovered in 1821, the specific character was known for many years. However, it began to be used industrially in Japan after the oil shock of the second half of the 1970s. Development of the process which extracts the high ingredient of added value focusing on fields, such as food and medical supplies, using the super-criticality CO2 was furthered at first in Germany. The supercritical water attracts attention with a rise of the concern of the latest resources problem or an environmental problem. Moreover, the process development such as recycling, decomposition of dioxin and PCB and oilizing and monomerizing of a waste plastic have been active. In recent years, use of the woody biomass is briskly performed on Europe. Since there is the woody biomass abundantly, it tends to go into a hand. In this paper, the supercritical liquid is described briefly. Next, the experiment of supercritical treatment of wood is described. And finally, we proposed using the explosive welding technique for the development of pressure vessel and performed the numerical simulation.

Explosive Welding of Molybdenum/Copper Using Underwater Shock Wave

2012 ◽  
Vol 706-709 ◽  
pp. 735-740 ◽  
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.

scholarly journals Improvement of the Bonding Strength of Al/Cu Transition Joint Made by Single-Shot Explosive Welding Technique Using Cu Intermediate Plate.

1994 ◽  
Vol 12 (1) ◽  
pp. 77-81 ◽  
Author(s):  
Takeshi Izuma ◽  
Kazuyuki Hokamoto ◽  
Masahiro Fujita ◽  
Toru Niwatsukino
Keyword(s):  
Bonding Strength ◽  
Explosive Welding ◽  
Single Shot ◽  
Welding Technique

516 Fabrication of Porous Metal Using Modified Explosive Welding Technique.

2013 ◽  
Vol 2013.21 (0) ◽  
pp. _516-1_-_516-3_
Author(s):  
Akira SATO ◽  
Ryohei TSUNODA ◽  
Kazuyuki HOKAMOTO
Keyword(s):  
Explosive Welding ◽  
Porous Metal ◽  
Welding Technique

scholarly journals Experimental and Numerical Studies on Preparation of Thin AZ31B/AA5052 Composite Plates Using Improved Explosive Welding Technique

Metals ◽  
2020 ◽  
Vol 10 (8) ◽  
pp. 1023
Author(s):  
Qi Wang ◽  
Xuejiao Li ◽  
Biming Shi ◽  
Yong Wu
Keyword(s):  
Explosive Welding ◽  
Welding Process ◽  
Composite Plates ◽  
Mechanical Tests ◽  
Extreme Condition ◽  
Welding Parameters ◽  
Interfacial Behavior ◽  
Microstructure Observation ◽  
Bonding Properties ◽  
Welding Technique

In this work, an improved explosive welding technique was investigated to fabricate a thin Mg/Al plate, where an additional thin aluminum sheet was used as a buffer layer between the explosive and the Al plate, and the Mg plate was rigidly constrained by a steel plate to avoid excessive deformation. Moreover, the welding parameters were optimized using theoretical analysis and numerical simulation, and the interfacial behavior was simulated using the SPH method. The bonding properties of the achieved joints were investigated using microstructure observation and mechanical tests. It was concluded that this technique is an effective method for producing a thin Mg/Al composite plate. In both morphology observation and mechanical tests, an excellent bonding quality was confirmed. In addition, smoothed particle hydrodynamics (SPH) simulation revealed an extreme condition of local high temperature and plastic strain in the welding process, and the characteristic parameters of waves obtained using simulation are well congruous with the experiment.

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