The Home Machinist!

RussN

Bill Shields wrote: ↑Tue Apr 09, 2024 10:18 pm IIRC Fred did it with a small chisel re-shaped tool to round the ends over, about 10 degrees at a time.

Brings back memories:
I have beaded hundreds of 2" boiler tubes using an air hammer and those hooked beading tools.
I get sore just remembering that!
RussN

Interesting. The drawings shown on your chosen website illustrate the same final inner/outer expansion/beading you can get with the expanding tool I was referring to. I can see that for large tubing a solid tool rotated as illustrated would be required. Thanks for sharing. Of course I was thinking a...

Another job Well Done!
RussN

I believe the process referred to -prossering- is internal expansion of the tubes using what looks like a collet that expands outward. That tool is called a "prosser" and they are commonly used to expand engine exhaust tailpipes. I have also seen them specifically for boiler tube expanding...

Bruce:
Very useful observations you shared.
Thank you.
RussN

What Bill said. I don't understand the requirement "to let the safety valve cool off to get the reset pressure consistent." I did not get that from Anthony's posting. I DID understand that several release/close cycles should be done to verify the new setting. What did I miss? I have watche...

jcfx wrote: ↑Sun Mar 31, 2024 6:10 pm Don't think online metals ships to the UK, you might try Googling for - aluminum extrusion suppliers in the UK
to find something closer to you.

Good call. Sorry to potentially mislead you.
At least you can see what exists in N America...
RussN

The head is rotated 180 degrees inverted to lower the center of gravity during transport.
RussN

Check onlinemetals.com
RussN

Hmmm... And what is that airborne picture showing? Interesting...
RussN

Hydrostatic test pumps on Amazon:

https://www.amazon.com/s?k=hydrostatis+ ... _sb_noss_1

I have used one for several years. Works good all the time.