Battlebots Good Weapon Material?

Dec 20, 2004 51 Replies
2 years of injunctions including

Game OVER.... Once AGAIN the attorneys win and the kids loose out, untimately, because some twit gets his nose out of joint. This political correctness crap, and the ACLU is gonna be our undoing if America doesn't get hold, lawyers notwithstanding!!

Merry Christmas to all on a great site!!

Bill in Phx..

"Game OVER.... Once AGAIN the attorneys win and the kids loose out,"

Nah! its coming back for the kids. It just won't be televised.. but they do record it, so maybe a DVD will come out. Check out

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6AL4V = 6% aluminum, 4%vanadium, balance titanium. the most widely used "aircraft" titanium alloy. 6AL4V ELI = extra low interstitial elements. A "cleaner" form of 6AL4V used for medical purposes mostly Grade 2: commercially pure titanium. i believe it's 99.6% pure with grade 1 being 99.9, grade 4 being 99.0?

Gene

That IS good news!!! Gotta keep the geeks up and coming, y'know. I'm really happy for the kids' sake. Maybe there IS a Santa Claus!!

Thanks!!

B.

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Matweb says Grade 1 = 99.5% Ti, with maximum impurities of: C max 0.1

Oops, sent early.

Matweb.com says Grade 1 = 99.5% Ti, with maximum impurities of: C max 0.1, Fe Max 0.2, H Max 0.015, N Max 0.03, O Max 0.18 Grade 2 = 99.2% with looser tolerances on Fe and O content. Grade 3 = 99.1% with Fe Max 0.3%, N Max 0.05% and O Max 0.35% (rest same as before). Grade 4 is 99.0% Ti with looser tolerances on Fe and O. All are rated between 24 and 80KSI yield and 35 to 80KSI max tensile, with about 15% elongation and 30% reduction in area (about 1030 or 1040 steel but half the density).

According to the references, this comes from _Materials Properties Handbook: Titanium Alloys_ (1994) and _Structural Alloys Handbook_, 1996 ed.

Tim

-- "I've got more trophies than Wayne Gretsky and the Pope combined!" - Homer Simpson Website @

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er, thats what I meant :-)

That is the ticket - freeze the rubber parts and have them shatter!

Call the Bot the FireTruck :-)

Martin

Thanks - normally I can find the composition but the use is sometimes not clear.

Martin

I missed the staff meeting but the minutes show Gunner wrote back on Fri, 24 Dec 2004 05:52:01 GMT in rec.crafts.metalworking :

Well, not "that bad" :-) Kalishnikov designed his rifle to be usable by Soviet Soldiers like himself, or some of the idiotski he served with. Reliable with no maintenance, because he knew that Russian Soldiers weren't the most mechanically adept (and the non-Russians, feh!). It works, Comrade.

If you build it, they will break it. Because idiots are so ingenious.

"American equipment is like a fine Swiss watch, while Soviet equipment is like a Mickey Mouse watch. If you drop the American watch, it stops. So does the Soviet watch, but you can shake it and it will start again."

tschus pyotr

When I was designing my generator platform, I tried very hard to follow the Kalashnikov principle. It should be cheap, simple, and work in real world. Hence the use of used tires for vibration dampening, large wheels etc. I made it portable because I expect the generator to need moving. Plus, "portable" generators are treated more leniently by various inspectors etc.

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As for the AK-47, it was designed just a few years after USSR came out of an awful war. Soldiers in that war spent months in muddy trenches, rain, snow and s*it. Perfect cleaning was not really an option quite often. My own training with weapons always involved incredible amount of maintenance, so it is not like the soviets were opposed to maintenance, they simply thought that it cannot be always expected.

i

deleted good comments about Kalashnikovs and their designer>

Which reminds me about how excited the Americans were when they got to apart a new Mig (25? 31?) when the pilot defected and flew to Japan abck in the late 70s (?). A few years later they were all gloating about how low tech it was: steel frame - "we use titanium and composites"; valves in the radar system etc - "idiotskis, we use the latest microprocessors, more processing power than the Apollo missions blah, blah, blah"; engines made using lower tech matrials so that they had only about 10% the service life before having to be totally rebuilt - "primitive". This gloating went on for years. The someone pointed out the the Soviet Union was churning these out at about 10% (my nominal figure) the price of the f16's FA18's etc they were being compared with; that the valves in the avionics didn't need to be hardened against the EMP from a nuclear blast (and were also therefore vastly cheaper) and that the 'primitive' engine could be whipped out of its airframe in 2 or 3 hours (versus many times more for the US equivalents), on any straight piece of bitumen long enough to land the plane on. and replaced in the same amount of time with another cheaply made engine - plane back in the air and in action....

Horses for courses.

cheers, Chris

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