Wheel inspection meeting?

[dinoracer]

In light of recent occurrences of cracks in wheels owned by some members, I'm wondering if there is interest in a "wheel inspection party". We're pretty rough on wheels, especially if you're running at NHMS regularly, so inspections should be part of your track preparations.

Bring your clean wheels ( or clean them when you get here, I'll provide a bucket and hose) and we'll visually inspect , then a dye penetrant /UV light further inspection. I figure we can do it om a Sat or Sun morning, get some coffee and donuts, have a few us your fellow racers around to help ( more eyes to see) . Nominal donation per wheel to help pay for the materials.

so, vote your thoughts, and in a couple weeks, if there's enough interest, we'll put something together for early April

Thanks Tom

[MiataSteve]

tires off I assume?

[962porsche]

in the classifieds I made a comment about the K1 wheels I had .
one wheel was leaking air all the time slowly . about 8 to 10 lbs every week putting it in a dunk tank you would see no air leaking I changed the valve stem reseated the bead and used a bead seal .
I magnafluxed the wheel and found a small crack were the spoke met the rim .
I then tig weld the crack but would never use the rims for track use again .

if your using cast wheel and low cost ones it's not a bad idea to check your wheels for cracks more then you would for forged or machined wheels .

[dinoracer]

Steve

I think tires off would be best, but I think the most likely failure points are in the spokes and lug areas, so might be useful even if the tires were still on.

We're most likely going to use a something you spray on, wipe off, spray developer, then dry and view under a UV light. A true magnaflux machine would be nice but not in the budget.

[paultg]

I would come to help/assist if I am available. I have new in box wheels so not concerned about damage yet.

[escortracer]

How do you magnetize aluminum?

[962porsche]

for magnafluxing does not magnetize the rim it's self but uses the pos and neg fields so the iron powder will settle in the areas were there are cracks .

[breakaway500]

Dave,you cannot use the magnetic Magnafluxing technique on nonferrous metals.(aluminum,magnesium,brass etc) That is what the spray-on/UV light crack detection system is for.

Magnetic Particle Inspection (Magnaflux)
Magnetic particle inspection is a nondestructive inspection methods used for defect detection. The method is used to inspect a variety of product forms such as castings, forgings, and weldments. The only requirement from an inspectability standpoint is that the component being inspected must be made of a ferromagnetic material such iron, nickel or cobalt, or some of their alloys. Ferromagnetic materials are materials that can be magnetized to a level that will allow the inspection to be effective. Many different industries use magnetic particle inspection for determining a component's fitness-for-use.

[n1gzd]

For aircraft aluminum testing we use the Zyglo process.
Rebecca

[962porsche]

Dave,you cannot use the magnetic Magnafluxing technique on nonferrous metals.(aluminum,magnesium,brass etc) That is what the spray-on/UV light crack detection system is for.

Magnetic Particle Inspection (Magnaflux)
Magnetic particle inspection is a nondestructive inspection methods used for defect detection. The method is used to inspect a variety of product forms such as castings, forgings, and weldments. The only requirement from an inspectability standpoint is that the component being inspected must be made of a ferromagnetic material such iron, nickel or cobalt, or some of their alloys. Ferromagnetic materials are materials that can be magnetized to a level that will allow the inspection to be effective. Many different industries use magnetic particle inspection for determining a component's fitness-for-use.

makes sense !
a friend took the rim to were he works it came back with it circle around the crack . he said he magnafluxed it ?

[breakaway500]

Zyglo is the dye/UV light crack reveal system that Magnaflux corporation sells...so your friend could have "Magnafluxed" it, but usually,when someone uses that term,it means something was Magnetic particle inspected, aka Magnafluxed.

[962porsche]

my friend rick had his yearly Daytona 500 party yesterday so I was asking him about checking cracks in metals .
he's the one that does it for me when ever I need it done .
he told me that using the term magnafluxing is totally the wrong term to use .
it's used as what people call plastic body filler as bondo .
bondo like magnaflux is just a trade name not the product or proses .
he did get into all the different types ,ways and methods to check for cracks . I learned allot !
on Wednesday I have to go there and he is going to show me how to do it for my self on different materials .
i'm looking forward to it !

[6PAK72]

Since Baker is the holder of the Broken Wheel **** Me I'm Upside Down award....

I'm in.

12 wheels.

[962porsche]

so I went do my friends shop on Wednesday .
he went thru all the different types of systems they use to check different types of materials for defects .
they have a system that uses sound waves not really to see if there is a crack but to see if it could crack over time .

[miatapeter]

Before I do a Jeff Baker . I'm in with 8 wheels.
Peter
#270 T30