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Post by ghgraphics on Oct 20, 2013 22:32:59 GMT -5
Having taken metallurgy classes at Purdue for my degree most of the stuff you will hear from people about how to make a frame stronger wont work... the amount of carbon used in the steel to make frames just isn't right, in order for most of the techniques that people say are used by said "cheater" will actually weaken a frame rather than strengthen it...
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Punisher 66J
Feature Winner
F**K WELD CLASS, STOCK IS FOR TRUE DERBY DRIVERS!!!
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Post by Punisher 66J on Oct 21, 2013 0:07:00 GMT -5
Having taken metallurgy classes at Purdue for my degree most of the stuff you will hear from people about how to make a frame stronger wont work... the amount of carbon used in the steel to make frames just isn't right, in order for most of the techniques that people say are used by said "cheater" will actually weaken a frame rather than strengthen it... Like what for instance?
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Post by jackedup on Oct 21, 2013 2:33:30 GMT -5
What he's saying is in order to harden the low carbon steel that your frame is made of you would have to heat it evenly to red hot and add carbon. Then reheat to red hot evenly and quench the entire frame rapidly. Sooo ya sure it could be done if you have 15 guys with rosebud tourches, about 10# of carbon compound, and a swimming pool you don't mind turning completely black... then the first hit you make your frame will just break in half. Same thing with people saying they work hardened their frame. Ok sweet, you some how or another got a frame made out of tool steel. (also took metallurgy classes in machine tool, and currently work as a tool maker.)
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Deleted
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Post by Deleted on Oct 21, 2013 9:39:52 GMT -5
So I could hang in over a cupola, then quench it in mex alloy, rehang it over cupola then throw it into the collection pond and it will be an indestructible w-body? Lmao
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Deleted
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Post by Deleted on Oct 21, 2013 9:41:44 GMT -5
I do know that if I rammed a couple of boxes of refractory into the rails it would work. That chit gets really hard...
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Post by runinoutofgas on Oct 21, 2013 11:14:11 GMT -5
There is a rumor of case hardened subframes in a few w bodies in central mn...... if it's true wouldn't they snap instead of bend?
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Post by 513monster on Oct 21, 2013 11:47:32 GMT -5
yep.
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Post by cooter33 on Oct 21, 2013 13:11:59 GMT -5
the only thing I used dry ice for is my tranny cooler works pretty good too keep ice in it longer
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Post by bgthomas18 on Oct 21, 2013 19:39:10 GMT -5
Try C Channel in side your frame
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Post by pegleg37 on Oct 21, 2013 20:13:57 GMT -5
As a metallurgist I'm asked this sort of stuff all the time. Freezing is actually used as part of some heat treatments but only with very specific materials for very specific reasons. Liquid nitrogen is used to do the freezing and I'm not sure dry ice would do the trick. The whole sending electric currents through a frame was somebody trying to describe induction heat treating. That's not how induction heating works and quenching with fuel?? Yikes.
Before attempting to treat any sort of steel you have to know what material you have. There's literally a thousand different steels out there. You'll find all sorts of different steels depending on what part of the car you touch. The majority of car parts I currently heat treat are actually made from ductile iron. Treatments are vastly different depending on the material. The carbon content is important but not nearly as important as the alloying. Even if you do know what material you have and could control it well enough to make something good happen, how do you know what you're doing is going to help? What microstructures and mechanical properties are ideal for a derby? Getting something beneficial for a derby with such amateur knowledge and techniques would be like hitting the Powerball. People also tend to forget that the majority of the parts on your car have been designed by teams of engineers and been through heat treatment already.
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Deleted
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Post by Deleted on Oct 21, 2013 23:36:18 GMT -5
Carbon, manganese, silicon, sulfur, copper and so on for ductile iron...
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Post by taterjuice on Oct 23, 2013 13:02:01 GMT -5
All you need to heat treat any frame is ice, 30 pack of favorite beer, 5 spools of .045 mig wire and 20' of 6 channel iron, works everytime !
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Post by letsdemo66 on Oct 23, 2013 14:35:43 GMT -5
20 feet? dats all? watcha gonna put in the other side once that 20 footer runz out on da leff side? ima pull my pants down ima pull my pants down yo!
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Post by jackedup on Oct 23, 2013 18:32:23 GMT -5
the only thing I used dry ice for is my tranny cooler works pretty good too keep ice in it longer Not a good Idea! its too cold and you can cavitate the pump in your transmission. 32 deg. F is plenty cold, -109 deg. F is just retarded.
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Post by fordpower111 on Oct 23, 2013 20:49:27 GMT -5
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