Explosive Welding Using Underwater Shock Wave Generated by the Detonation of the Detonating Code

2011 ◽  
Vol 673 ◽  
pp. 265-270 ◽  
Author(s):  
Akihisa Mori ◽  
Li Qun Ruan ◽  
Kazumasa Shiramoto ◽  
Masahiro Fujita
Keyword(s):  
Shock Wave ◽  
Sound Velocity ◽  
Detonation Velocity ◽  
Explosive Welding ◽  
New Method ◽  
Underwater Shock Wave ◽  
Metal Plates ◽  
Experimental Parameters ◽  
Underwater Shock ◽  
Point Velocity

Detonating code is a flexible code with an explosive core. It is used to transmit the ignition of explosives with high detonation velocity in the range of 5.5 to 7 km/s. However, it is difficult to use detonating code for the explosive welding of common metals since the horizontal point velocity usually exceeds the sound velocity. Hence, in the present work, a new method using underwater shock wave generated by the detonation of detonating code was tried. The details of the experimental parameters and the results are presented. From the results it is observed that the above technique is suitable to weld thin metal plates with relatively less explosives.

Underwater Explosive Welding Using Detonating Code

2012 ◽  
Vol 706-709 ◽  
pp. 763-767 ◽  
Author(s):  
Akihisa Mori ◽  
Ayumu Fukushima ◽  
Kazumasa Shiramoto ◽  
Masahiro Fujita
Keyword(s):  
Numerical Simulation ◽  
Shock Wave ◽  
Sound Velocity ◽  
Detonation Velocity ◽  
Explosive Welding ◽  
Experimental Setup ◽  
Underwater Shock Wave ◽  
Welding Method ◽  
Metal Plates ◽  
Underwater Shock

Detonating code, which is a flexible code with an explosive core, is normally used to transmit the ignition of explosives with high detonation velocity 6 km/s. Therefore it is difficult to use detonating code for the explosive welding of common metals toward the detonating direction since the welding velocity exceeds the sound velocity of metals. Hence, an explosive welding method using underwater shock wave generated by the detonation of detonating code was tried. In the present investigation, the details of the experimental setup and results are reported. And the welding conditions are discussed through numerical simulation. From these results it is observed that the above technique is suitable to weld thin metal plates with relatively less explosives.

309 A New Method of Explosive Welding Using Concentrating Underwater Shock Wave

2001 ◽  
Vol 2001.9 (0) ◽  
pp. 109-110
Author(s):  
Kazumasa SHIRAMOTO ◽  
Akio KIRA ◽  
Masahiro Fujita ◽  
Akihisa Mori ◽  
Kazuyuki HOKAMOTO ◽  
...  
Keyword(s):  
Shock Wave ◽  
Explosive Welding ◽  
New Method ◽  
Underwater Shock Wave ◽  
Underwater Shock

A New Method of Explosive Welding Performed by Effective Application of Reflected Underwater Shock Wave

2006 ◽  
Author(s):  
Kazumasa Shiramoto ◽  
Masahiro Fujita ◽  
Hirofumi Iyama ◽  
Yasuhiro Ujimoto ◽  
Shigeru Itoh
Keyword(s):  
Shock Wave ◽  
Explosive Welding ◽  
Underwater Explosion ◽  
Shock Pressure ◽  
Experimental Results ◽  
New Method ◽  
Underwater Shock Wave ◽  
Effective Application ◽  
Welding Method ◽  
Underwater Shock

In this report, we propose a new explosive welding method, and the welding is performed at employing underwater shock pressure produced by the underwater explosion of an explosive placed at one side almost vertical to the specimen to be welded. In order to prevent the reduction of the shock pressure with the distance away from explosive, a steel reflector is placed over the area of the specimen. The effects of the reflector are investigated based on the experimental results and the process is numerically analyzed results.

Numerical Simulation on Explosive Welding Process Using Reflected Underwater Shock Wave

2007 ◽  
Vol 566 ◽  
pp. 309-314
Author(s):  
Kazumasa Shiramoto ◽  
Masahiro Fujita ◽  
Yasuhiro Ujimoto ◽  
Hirofumi Iyama ◽  
Shigeru Itoh
Keyword(s):  
Numerical Simulation ◽  
Shock Wave ◽  
Explosive Welding ◽  
Welding Process ◽  
Underwater Shock Wave ◽  
Underwater Shock ◽  
Effective Use

The paper describes a numerically simulated result for the explosive welding using reflected underwater shock wave. Through the numerical simulation, the effective use of reflected underwater shock wave was clearly suggested and the method to improve the assembly was demonstrated.

1433 An Explosive Welding Process by Effective Application of Reflected Underwater Shock Wave : A Method by Using Reflection at Bottom Surface

2008 ◽  
Vol 2008.1 (0) ◽  
pp. 273-274
Author(s):  
Kazumasa SHIRAMOTO ◽  
Takahiro TAKEDA ◽  
Hirofumi IYAMA ◽  
Yasuhiro UJIMOTO ◽  
Shoichiro KAI ◽  
...  
Keyword(s):  
Shock Wave ◽  
Explosive Welding ◽  
Welding Process ◽  
Bottom Surface ◽  
Underwater Shock Wave ◽  
Effective Application ◽  
Underwater Shock
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