Explosive hydroforming of spherical tanks - video

[Jon]

Explosive hydroforming of spherical tanks. 0:51 video:

Previously:

Homemade hydroforming machine - video
1942 gasoline storage tanks
Water tank wrapping machine - GIF
Blow molding plastic water tanks - GIF
Painting propane tanks by spinning them - GIF

[marksbug]

fricken awesome!!!!

[Frank S]

fricken awesome!!!!

Plus it is guaranteed the welds were perfect

[marksbug]

Ive done some hydro forming hear on my aircooled vw oil pump pickup tubes, great way to get the final desired shape for much better flow and less restrictions.. my
car has hydro formed frame, along with the body panels are also hydro formed.
I learned about it 25 years ago at a prototype machine shop, I didnt do any there but it was explaned to me. then I went to the corvete place up in kentuckey where they showed them making the frame rails,20 years pass and the car I have now has them... as for my vw stuff. the pickup tubes are restrictive with isant good and can induce cavatation, so i machined a jig and I hydro form the new pickup tubes for a much beter shape and flow.

[Toolmaker51]

Plus it is guaranteed the welds were perfect

And nearby car alarms operative!

[old kodger]

Many years ago there was a guy making aluminium yachts this way, in a mould in the ground, in Newport NSW

[hemmjo]

Used to do an explosive forming activity in my Industrial Technology classes. Until we had to stop because they would not allow .22 caliber blanks at school.

[marksbug]

so..it's blow molding for metal.

[Toolmaker51]

so..it's blow molding for metal.

That is a proper visualization. Normal blow molding is smaller items like milk containers, but real hard to expel sufficient air fast enough in tougher material.

[marksbug]

heck they blow mold boats too!!