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Re: Can anyone identify these welds on a vintage jet engine?
The toes don’t look welded . I wonder if could be a type of heated crimp weld of some sort?
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Re: Can anyone identify these welds on a vintage jet engine?
Gear: Esab power compact 205 with tbi industries torch
BOC Smootharc 185dc tig
Miller Syncrowave 350LX
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Re: Can anyone identify these welds on a vintage jet engine?
Originally Posted by
Bls repair
The toes don’t look welded . I wonder if could be a type of heated crimp weld of some sort?
Yeah, they look like resistance rolled welds I have seen mostly on piping setups.
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Re: Can anyone identify these welds on a vintage jet engine?
Originally Posted by
ronsii
Yeah, they look like resistance rolled welds I have seen mostly on piping setups.
I was just going to add something like that.
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Re: Can anyone identify these welds on a vintage jet engine?
Originally Posted by
12V71
I was just going to add something like that.
I’d love to see that process. There was one weld in person that looked like a continuous spot weld.
Gear: Esab power compact 205 with tbi industries torch
BOC Smootharc 185dc tig
Miller Syncrowave 350LX
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Re: Can anyone identify these welds on a vintage jet engine?
It could be resistance welds as mentioned. In the WWII era, some companies were still using O/A aluminum welding. It's tricky but it works. I once had a shop weld a motor mount back on my Harley Knucklehead crankcase. The welder used O/A and did a terrific job. He used lots of pre-heat and did the work with aluminum filler rod and white borax for flux.
Miller Millermatic 252
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Re: Can anyone identify these welds on a vintage jet engine?
Oxy-Hydro welding would be my guess. It actually predates Oxy-Acetylene and was in use in the early 1900s. I’ve mentioned it here recently, but it can be used to weld aluminum, along with precious metals like platinum. Much of the rods sold now that are used for aluminum are brazing rods, whereas Oxy-Hydro is a weld process. 1XXX-6XXX series aluminum can be welded.
Originally Posted by
gnm109
It could be resistance welds as mentioned. In the WWII era, some companies were still using O/A aluminum welding. It's tricky but it works. I once had a shop weld a motor mount back on my Harley Knucklehead crankcase. The welder used O/A and did a terrific job. He used lots of pre-heat and did the work with aluminum filler rod and white borax for flux.
Are you sure it’s not Oxy-Hydro you’re talking about? The torch equipment is the same as Oxy-Acetylene but the bottle and regulator are different. Also uses flux.
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Re: Can anyone identify these welds on a vintage jet engine?
Originally Posted by
William Payne
I’d love to see that process. There was one weld in person that looked like a continuous spot weld.
We like to think of ourselves as technically superior to our predecessors, but there were times when they did more with less. I’ve seen some old timers lay some spectacular beads with a an Oxy-Acetylene torch. It’s not all that different than laying a stack of dimes with a TIG welder today. The torches now are electric instead of Oxy-Fuel, but the process and body mechanics are similar.
When you stop and think about some of our greatest accomplishments were achieved with slide rule and pencil.
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Re: Can anyone identify these welds on a vintage jet engine?
Originally Posted by
Mike_L
We like to think of ourselves as technically superior to our predecessors, but there were times when they did more with less. I’ve seen some old timers lay some spectacular beads with a an Oxy-Acetylene torch. It’s not all that different than laying a stack of dimes with a TIG welder today. The torches now are electric instead of Oxy-Fuel, but the process and body mechanics are similar.
When you stop and think about some of our greatest accomplishments were achieved with slide rule and pencil.
Preaching to the choir man. I’ve been saying that for years.
If you want to have a fun read look up the papers NASA wrote about developing welding processes back in the 60’s. Awesome stuff.
Gear: Esab power compact 205 with tbi industries torch
BOC Smootharc 185dc tig
Miller Syncrowave 350LX
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Re: Can anyone identify these welds on a vintage jet engine?
To me it looks like Oxy-Acetylene
Dave
Originally Posted by
William Payne
Was at an open day today and there was a 1940’s era De Havilland Goblin Jet Engine there on a stand. Heliarc (TIG) was perfected in 1941 by Northrup. De Havilland were British.
You can see some welds that appear to be early Heliarc or Oxy Acetylene welds but what has me scratching my head are ones that look to be a series of horse shoe shapes. You can also see a lot of spot welds.
Oh and for anyone wondering the engine on the right is an Allison V12
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Re: Can anyone identify these welds on a vintage jet engine?
Originally Posted by
William Payne
Preaching to the choir man. I’ve been saying that for years.
If you want to have a fun read look up the papers NASA wrote about developing welding processes back in the 60’s. Awesome stuff.
Always enjoy reading stuff like that, I’ll check those out, thanks for the information.
Looks like the material is most likely Nimonic.
From Wikipedia...
Nimonic is a registered trademark of Special Metals Corporation that refers to a family of lpaste-based high-temperature low creep superalloys. Nimonic alloys typically consist of more than 50% nickel and 20% chromium with additives such as titanium and aluminium.
The main use is in gas turbine components and extremely high performance reciprocating internal combustion engines. The Nimonic family of alloys was first developed in the 1940s by research teams at the Wiggin Works in Hereford, England, in support of the development of the Whittle jet engine.[1][2]
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Re: Can anyone identify these welds on a vintage jet engine?
Originally Posted by
Mike_L
Always enjoy reading stuff like that, I’ll check those out, thanks for the information.
Looks like the material is most likely Nimonic.
From Wikipedia...
Happy reading
https://ntrs.nasa.gov/
Gear: Esab power compact 205 with tbi industries torch
BOC Smootharc 185dc tig
Miller Syncrowave 350LX
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Re: Can anyone identify these welds on a vintage jet engine?
“ Can anyone identify these welds...”
Starting in the upper left we have Bob, under Bob is Frank, then Allen. To the right is Betsy...
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Re: Can anyone identify these welds on a vintage jet engine?
Originally Posted by
walker
“ Can anyone identify these welds...”
Starting in the upper left we have Bob, under Bob is Frank, then Allen. To the right is Betsy...
I completely support your sense of humour haha.
Gear: Esab power compact 205 with tbi industries torch
BOC Smootharc 185dc tig
Miller Syncrowave 350LX