Welding Alu-Sil
11-25-2003, 12:48 PM
#1
Racer
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Welding Alu-Sil
Does anyone here on the list have experience with the repair and welding of our Alu-Sil blocks.
Actung! Calling all TIG Welders with a steady hand who can repair this 928 S4 lower block Girdle cracked in two places.
First one to respond gets an ice cold bottle of Becks!
Actung! Calling all TIG Welders with a steady hand who can repair this 928 S4 lower block Girdle cracked in two places.
First one to respond gets an ice cold bottle of Becks!
11-25-2003, 01:12 PM
#3
Racer
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Well its not really in an area that is structural that I think will be a problem. It is more or less in the oil pan rim area, so once it is welded it should be as strong as before, right?
11-25-2003, 02:02 PM
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Gerry, I'm good (Certified non-pressure) but not that good yet. I'm also all the way in Atlanta. Do some looking arround in the yellow pages for a machine shop. Almost all shops have a TIG machine and a certified weldor that has quite a bit of experience.
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12-03-2003, 01:39 PM
#8
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Gerry I am capable of fixing that...ben a tig welder( not weldor) for 20 years.It can be fixed pretty easily.you will need to have it machined when done and maybe have the block line bored to do it right.
Drop me a note if you need help.
Drop me a note if you need help.
12-03-2003, 01:47 PM
#9
Originally posted by Gerry
It is more or less in the oil pan rim area, so once it is welded it should be as strong as before, right?
It is more or less in the oil pan rim area, so once it is welded it should be as strong as before, right?
12-05-2003, 03:08 PM
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>Metal loses something like 40% or 50% of it's strength when it is welded.
???????
That was pulled out of somewhere stinky.
It depends heavily on what you are welding, and how you are welding it. Welding usually makes steel stronger but more brittle, espically if it cools too quickly forming a martensitic (bad) weld. Usually the weld is the strongest part of a joint. Unfortunately, in joints such as the F-SAE car frame (in your picture) being a little ductile is a good thing because it prevents stress cracks. Welding heat treated metal will remove the heat treat within close locality to the weld.
Welding the bottom of the block (cast aluminum) will probably be OK. It undergoes a lot of thermal stress cycles, and a little torsion, but it really isn't too bad. You may be able to fill it in with some of these exotic metal adhesives they have nowadays.
???????
That was pulled out of somewhere stinky.
It depends heavily on what you are welding, and how you are welding it. Welding usually makes steel stronger but more brittle, espically if it cools too quickly forming a martensitic (bad) weld. Usually the weld is the strongest part of a joint. Unfortunately, in joints such as the F-SAE car frame (in your picture) being a little ductile is a good thing because it prevents stress cracks. Welding heat treated metal will remove the heat treat within close locality to the weld.
Welding the bottom of the block (cast aluminum) will probably be OK. It undergoes a lot of thermal stress cycles, and a little torsion, but it really isn't too bad. You may be able to fill it in with some of these exotic metal adhesives they have nowadays.
