Mini Explosion Welding

[@ladedk]

Great, Finally new videos! The process and development is incredibly interesting to follow. Thank you for posting.

[@Aruncillos]

+ladedk Thank you very much. This is a lot of work ;-)

[@barknbulut8754]

wish it was longer video,thanks !

[@Aruncillos]

Well; we also had to work. The video recording was on the side. And we didn't have a cameraman.

[@rock3tcatU233]

Could this work for very thin materials? Or would the explosive render them useless?

[@Aruncillos]

Yes, you need to use auxiliary devices. Which: it depends on the thin material. We tested 0.1 mm Al and also Ag; approx. 2 cm² on steel.

[@TheWizardGamez]

Depending on how this the metal you could just have a pucture/ year in the material. So the question is why?

[@rock3tcatU233]

@@TheWizardGamez Basically the idea is to use a thin metal to clad another thicker metal. Mostly as a corrosion barrier.

[@matheuslobao841]

Very good video. You are using liquid explosives? In the current industry liquid replaces the powder?

[@Aruncillos]

Thanks; Yes; Liquid Oxygen Explosive of the new generation - "PMMA-LOX-Ex". Fuel is molecularly structured PMMA. The explosive is comparable to C4. And: This explosive is itself defuse and is suitable for automated use.

[@jacobkudrowich]

@@Aruncillos the explosion is comparable to c4 but I'm afraid the explosive couldn't be father from c4.

[@Aruncillos]

Comparable yes; But not the father of C4; the explosive "PMMA-LOX" was developed by us in 2004. It is relatively young.

[@heinzhaupthaar5590]

@@Aruncillos I think he meant to write 'further'. As in - one one hand the explosive is similar to C4, on the other hand it couldn't be further from it. Anyway, thanks for sharing some your work, it's a rare insight in an interesting profession and very appreciated!

[@Aruncillos]

@@heinzhaupthaar5590 Yes it is. The released energy is slightly higher with PMMA-LOX-Ex than with Octogen and C4.

[@sonulokhandesharingexperie8353]

Which explosive material used??

[@Aruncillos]

Molecular structured Polymethyl methacrylate (PMMA) mixed in LOX - PMMA-LOX-Ex

[@glenglen1658]

What 2 metals did you join and can you Manuel weld the after if needed

[@Aruncillos]

Sorry because of my late answer. We connected a lot of different metals (there are publications). And yes - after Ex-connection same metals can be conventionally welded to the same metals.

[@regularstan6212]

This is neat!

[@Aruncillos]

Thank you.

[@poodlelord]

I don't understand how this works?

[@Aruncillos]

A stoichiometric mix of oxidizer and suitable molecular fuel particles are the basis for the reaction.

[@br6768]

Duct tape is always the answer

[@Aruncillos]

That is correct. Even the Apollo astronauts used tape on the moon :)

[@ricogo2447]

Vopil?

[@lavakumar1255]

Crazy stuff...:D

[@Aruncillos]

Thank you; we are entering "New Territory" ;-)

[@ericdebord]

Wish there was more info on small scale explosion welding.

[@Aruncillos]

We have publications, e.g. in EFEE Newsletter February 2019.

[@DFWOW]

wow! may i use this video at my homework?

[@Aruncillos]

for homework: yes, it is O.K. :-)

[@DFWOW]

Aruncillos thx real

[@dadegixxer]

@@Aruncillos you’re a good dude for that

[@poodlelord]

Where were the explosives dude?

[@llYossarian]

That steaming liquid they were pouring in that looked like like liquid nitrogen was actually LOX-ex, a kind of "Oxyliquit" which is a class of liquid-oxygen explosive (hence "LOX-ex") which comes from a family of HIGHLY potent explosives known as "Sprengel Explosives" named after their inventor/discoverer Hermann Sprengel in the late 19th century.

[@Aruncillos]

in cover in the background; prepares tests.

[@Aruncillos]

In 1895, under the name "Oxyliquit", Carl von Linde developed an explosive. It was the first Liquid-Oxygen-Explosive. This new LOX-Ex uses molecular structured fuel particles (PMMA). This PMMA-LOX-Ex is stronger (triple product: density x detonation speed x energy/kg) than octogen.

[@dakotadixon6636]

It isn't an explosive, it's chemicals that are *explosive.*

[@Aruncillos]

That's correct - The mixture / compound is an explosive

[@sonulokhandesharingexperie8353]

So we we can make fake gold biscuits by using this process at farm house. Like china😂

[@Aruncillos]

well; I think, all that remains of the cookies is molecules. But, the metal "Gold" on steel or titanium etc. is successful.