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General Category >> Rubber Side Down! >> Metalurgy of the bike
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Message started by Spamy on 10/14/14 at 08:19:04

Title: Metalurgy of the bike
Post by Spamy on 10/14/14 at 08:19:04

I couldnt find the previous post, but I intended to shoot the metal on the bike and see what exactly it was just for the heck of it.

Here are the results, doesnt look like any special metals here. Weld away.

FE = Iron
Zn = Zinc
Mn = Manganese
Cr = Chromium
Pb = Lead
Al = Aluminum
Ni = Nickel

Here is the reading from the side covers...
http://i888.photobucket.com/albums/ac81/slickpuss/SideCovers.jpg (http://s888.photobucket.com/user/slickpuss/media/SideCovers.jpg.html)

Here is the reading from the backbone...
http://i888.photobucket.com/albums/ac81/slickpuss/UpperBackbone.jpg (http://s888.photobucket.com/user/slickpuss/media/UpperBackbone.jpg.html)

Here is the reading from the swingarm...
http://i888.photobucket.com/albums/ac81/slickpuss/Swingarm.jpg (http://s888.photobucket.com/user/slickpuss/media/Swingarm.jpg.html)

And the last one is from under the seat, near the top of the shock mount...
http://i888.photobucket.com/albums/ac81/slickpuss/BeneathSeat.jpg (http://s888.photobucket.com/user/slickpuss/media/BeneathSeat.jpg.html)

Title: Re: Metalurgy of the bike
Post by verslagen1 on 10/14/14 at 13:09:26

What analyzer did you use?

I didn't find any particular alloy for any of these... not enough trace elements and Asian metal standards are different then ours.

Cover
Al 95.42
Pb 0.07
Zn 2.32
Cu 2.32
Ni 0.07
Fe 1.1
Mn 0.18

Frame/backbone
Zn 1.24
Fe 97.05
Mn 1.29
C 0.42

Frame/seat/shock mount
Mo 0.03
Fe 98.45
Mn 0.38
C 1.14

Swingarm
Zn 0.62
Fe 98.55
Mn 0.49
C 0.34

Title: Re: Metalurgy of the bike
Post by Dave on 10/14/14 at 13:37:40

Not sure if it is the metal, or a hardening process. When I cut off the tubes for the footpeg mounts for my RYCA conversion - those tubes really are hard and my sawzall blades dulled very quickly. I got about one tube cut per each blade.

Title: Re: Metalurgy of the bike
Post by Spamy on 10/14/14 at 13:37:44

Thermo Niton XRF. Some of peices had some paint on them that will sully the reading. But the swingarm peice I cleaned off before shooting.

Most of the metal profiles are loaded in the gun. The name above is what it is closest catagarized to.

Alumninum alloy and the others were Iron/Carbon Steel. If it can narrow it down to a value such as 6061, 316, whatever it will. But Japanese pot metal may not be a specific mix.