Are factory wheels 100% aluminum?
01-15-2009, 09:47 PM
#16
Rennlist Member
http://en.wikipedia.org/wiki/Thermite
I think McGyver used this to get out of prison once:
http://en.wikipedia.org/wiki/Magnesium/teflon/viton
Jim, are you having trouble with refinishing of those hollowspokes?
I think McGyver used this to get out of prison once:
http://en.wikipedia.org/wiki/Magnesium/teflon/viton
Jim, are you having trouble with refinishing of those hollowspokes?
01-16-2009, 05:26 AM
#17
Rennlist Member
Thread Starter
http://en.wikipedia.org/wiki/Thermite
I think McGyver used this to get out of prison once:
http://en.wikipedia.org/wiki/Magnesium/teflon/viton
Jim, are you having trouble with refinishing of those hollowspokes?
I think McGyver used this to get out of prison once:
http://en.wikipedia.org/wiki/Magnesium/teflon/viton
Jim, are you having trouble with refinishing of those hollowspokes?
There are a couple gouges in the rim lip which need to be smoothed. Powdercoater would prefer not to use aluminized filler. His welder is cautious and wants me to make sure there is no magnesium (or slim to nil) in the alloy.
So, I think the answer is little to no magnesium in the wheels is highly likely. No enough to make the wheels catch on fire instantaneously.
Thanks everyone for their input and misc. info about magnesium.
01-16-2009, 08:15 PM
#18
Drifting
Join Date: Nov 2001
Location: zürich, switzerland
Posts: 2,233
Likes: 0
Received 0 Likes
on
0 Posts
many years ago I worked in a steel works where they wanted to make some special Manganese steel.
The instructions given to the Blast furnace foreman were to add several hundred pounds of Manganese to the molten steel.
This idiot threw in Magnesium. Very impressive result; it removed the whole roof of the facility, temporarily blinded the whole crew, ruined the whole batch of steel.
Marton
The instructions given to the Blast furnace foreman were to add several hundred pounds of Manganese to the molten steel.
This idiot threw in Magnesium. Very impressive result; it removed the whole roof of the facility, temporarily blinded the whole crew, ruined the whole batch of steel.
Marton
01-17-2009, 04:01 PM
#19
The worst racing accident in history occurred at Le Mans in 1955 when a Mercedes-Benz 300SLR crashed and killed the driver and 82 spectators. A contributing factor to the resulting inferno was the light-weight magnesium bodywork of the MB.
01-18-2009, 03:32 AM
#20
By 76FJ55
Agreed! The welders I use have welded an GT manifold that I sent to a mate in the States, the rods are expensive, you do need to be careful but the guy welding the wheels should know better and will know as soon as he puts the torch to the wheels, I think you can just tell mag stuff by looking at it. Some early 911 cases were Mag and suffered fro porous casings. Something they solved by coating them.
By Marton
That's actually quite funny given it didn't happen to me
Normally something like that I think might happen if I was on a day trip to the plant knowing my luck of late
.
The Carrera GT has Mag wheels, don't know what percentage, an interesting fact is I had a set of Oz racing wheels in my hand and they were only 1KG lighter per wheel than my alloy 5 spoke genuine Porsche wheels, that is same width and diameter, not worth the cost in my opinion as they are not as durable, they only do two races in F1 before they melt them back down.
there are a lot of aluminum alloys that contain Mg. for instance a few common wrought alloys 2024 ~1.6% Mg, 6061 ~1% Mg, 7075 ~2.5% Mg... there are also many Mg allow where Mg is the primary as opposed to the alloying element. To weld Mg you need an extremely clean environment and good shielding / inert atmosphere. As with all base metals there are alloys with better and worse weldability. Our Shops (American Airlines Overhaul Facility) weld Mg on a regular basis.
If you have a specific alloy I can probably get you the weldability rating for it. also pre and post welding a lot of materials require heat treat either to increase weldability or to restore mechanical properties.
If you have spacific questions I may be able to help. Also I have access to some good equipment for material identification.
If you have a specific alloy I can probably get you the weldability rating for it. also pre and post welding a lot of materials require heat treat either to increase weldability or to restore mechanical properties.
If you have spacific questions I may be able to help. Also I have access to some good equipment for material identification.
By Marton
many years ago I worked in a steel works where they wanted to make some special Manganese steel.
The instructions given to the Blast furnace foreman were to add several hundred pounds of Manganese to the molten steel.
This idiot threw in Magnesium. Very impressive result; it removed the whole roof of the facility, temporarily blinded the whole crew, ruined the whole batch of steel.
Marton
The instructions given to the Blast furnace foreman were to add several hundred pounds of Manganese to the molten steel.
This idiot threw in Magnesium. Very impressive result; it removed the whole roof of the facility, temporarily blinded the whole crew, ruined the whole batch of steel.
Marton
Normally something like that I think might happen if I was on a day trip to the plant knowing my luck of late.The Carrera GT has Mag wheels, don't know what percentage, an interesting fact is I had a set of Oz racing wheels in my hand and they were only 1KG lighter per wheel than my alloy 5 spoke genuine Porsche wheels, that is same width and diameter, not worth the cost in my opinion as they are not as durable, they only do two races in F1 before they melt them back down.
01-30-2009, 10:25 PM
#21
Administrator - "Tyson"
Lifetime Rennlist
Member
Lifetime Rennlist
Member
