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#1
28-05-17, 01:54
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David, there is a lot of aluminium in these tanks but what you see there are part of the bulkhead divisions. The part that you see I straightened is the division between the driver and engine. There are two doors with pressings that close that section and the turret baskets and ammo storage areas are also made of aluminium.
Lynn/Andrew thanks for that! after all the years of working with steel I had not heard of that name. I have never had a use for hardened steel with all the commercial building I did over the years. You learn something everyday  
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#2
28-05-17, 10:27
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Corten is the steel used in Shipping Containers due to it's increased salt water corrosion resistance.
It is now being increasingly used in laser cut forms as an architectural sign-writing material to give a rural/rustic appearance. Your laser-cutting steel supplier will be able to provide it in a range of thicknesses. There minor changes to welding processes when combining it to either mild or stainless, but not enough to be a major worry.
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#3
28-05-17, 12:29
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Well, I won't forget Corten Steel in a hurry, but I am quite familiar with different steel tensile properties.
As much as cnc plasma machines are quite expensive, they are extremely handy doing this kind of restoration work. I did one axle support today and got the other suspension parts off the other one. They seriously took some work to get them to finally let go.
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#4
28-05-17, 12:33
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Again the port power was invaluable getting the wheel stations off. I have put up a couple of photo's of the other bogies I have. They are still quite good for their age.
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#5
31-05-17, 12:42
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I have now got both of the axle channels in place and some repair to the rear curved floor.
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#6
31-05-17, 12:49
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The floor of the other one is also off. it's not too bad to get off once the rivet tops have been ground down. I still need to grind lower than the flat surface as the rivet sits in a small counter sink hole. Hand chisels, Hammer and air chisel do the job. The side return roller will come off tomorrow as I need to make two of them as well.
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#7
31-05-17, 12:51
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They will both be ready for sand blasting next week, then the good part begins.
I won't replace the floors until they are blasted.
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