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Post by 82 on Jan 12, 2011 21:11:18 GMT -5
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Post by Jon Hart 77 on Jan 12, 2011 22:39:08 GMT -5
iv'e become rather proficient at doin this unfortunatly our derby wont let it be done
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Post by Bone shaker motorsports on Jan 29, 2011 13:28:30 GMT -5
i did it to my 80 catalina cause i was bored and it looks pretty good for the first time
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Post by DemolitionMission on Feb 4, 2011 23:24:17 GMT -5
I am going to have a fully creased car this summer i'm building. And i mean FULLY creased, every inch. I'm looking forward to it.
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Post by etownrdnck on Feb 4, 2011 23:30:56 GMT -5
are you going to be creasing karen
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Post by DemolitionMission on Feb 4, 2011 23:35:33 GMT -5
are you going to be creasing karen Yep
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Post by etownrdnck on Feb 4, 2011 23:36:53 GMT -5
that should be a good show with it do you have mudders for the front
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Post by DemolitionMission on Feb 4, 2011 23:57:36 GMT -5
that should be a good show with it do you have mudders for the front Yea. I will be having a build progress thread on here once I start on the car in march.
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Post by etownrdnck on Feb 5, 2011 0:10:47 GMT -5
ok sweet
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Post by Engineerguy on Feb 5, 2011 13:36:37 GMT -5
A professional fabricator once told me that when you hit metal with a ballpeen hammer it expands the molecules in the steel making it harder Here's my mechanical engineering explanation in case anyone wanted to know. You guys are absolutely correct. Steel at the molecular level has a lattice (grid) structure. When you bend the metal, it causes that lattice to break and deform. Cold working or work hardening generates many dislocations which pile up and entangle, which will prevent further movement of dislocations. This is why when bending a paper clip back and forth - it becomes hard to bend at the same point and will eventually break if you continue. The grains in the metal also become elongated. This a permanent deformation so dislocations pile up and the strenghth goes up also. The larger grain boundary in the elongated strip also helps to stop the formation of further dislocations so that it becomes harder. The metal also becomes more brittle and is more liable to fracture as the number of dislocations goes up. So you can definitely go too far. There you go if anyone wanted to know the science behind how it strengthens the metal of your car.
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Post by 82 on Feb 5, 2011 16:00:39 GMT -5
^^^Thank you for that
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