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Metalworking (rec.crafts.metalworking) Discuss various aspects of working with metal, such as machining, welding, metal joining, screwing, casting, hardening/tempering, blacksmithing/forging, spinning and hammer work, sheet metal work. |
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#41
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"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 http://www.battlebotsiq.com/ |
#42
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Martin - what is the difference of 6AL-4V and Grade 2 and ?? 6AL-4 Eli ? 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 |
#43
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"AJ Quick" wrote in message ps.com... "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 http://www.battlebotsiq.com/ 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. |
#44
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"gene lewis" wrote in message
... Grade 2: commercially pure titanium. i believe it's 99.6% pure with grade 1 being 99.9, grade 4 being 99.0? Matweb says Grade 1 = 99.5% Ti, with maximum impurities of: C max 0.1 |
#45
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Larry Jaques wrote:
On Fri, 24 Dec 2004 05:43:15 GMT, "Martin H. Eastburn" calmly ranted: Hum - a nice 1/4" diameter TI rod with a heater wire on it - just might make a fire torch that would melt the hole through anything. IIRC, 900 C. Oh - maybe a metal fire is a violation. Mebbe so. Howzbout a bottle of liquid nitrogen, to chill out the other bot? Then a MUCH smaller spinner would work to stop it by battering it into tiny metal, silicon, and rubber icecubes. That is the ticket - freeze the rubber parts and have them shatter! Call the Bot the FireTruck :-) Martin -- Martin Eastburn, Barbara Eastburn @ home at Lion's Lair with our computer NRA LOH, NRA Life NRA Second Amendment Task Force Charter Founder |
#46
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gene lewis wrote:
Martin - what is the difference of 6AL-4V and Grade 2 and ?? 6AL-4 Eli ? 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 Thanks - normally I can find the composition but the use is sometimes not clear. Martin -- Martin Eastburn, Barbara Eastburn @ home at Lion's Lair with our computer NRA LOH, NRA Life NRA Second Amendment Task Force Charter Founder |
#47
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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 : Evidently you are not particularly familiar with weapons. The AK-47 was designed to be cheaply stamped out of sheet metal and then handed to the first thumb fingered turd world savage you managed to coax out of his cave, told the rudiments of sight picture, how to load the magazine, which end the round comes out of and turned loose on your enemy(s). 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. It likes its forebearer, the SKS etc etc all perform magnificently at this task. Tolerances are loose, the weapon may rattle when shaken, but does the job no matter if its been just drug out of the swamp, the mud hole, the sand dune or the manure pile in which it was stored or fallen. The M-16 will puke its guts out and become a large ungainly paperweight long before the AK/SKS etc notices its filled with yak ****. This is called Design for the Real World. The KISS Princible is a great one to stake your life on. If you build it, they will break it. Because idiots are so ingenious. The US trifold military entrenching tool..is no more than a simple, folding shovel that sucks big time. The wooden handled Russian shovel works first time, everytime, no matter what you do to it. This is called Design for the Real World (AKA...Murphy was an optimist) "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 -- pyotr filipivich. as an explaination for the decline in the US's tech edge, James Niccol wrote "It used to be that the USA was pretty good at producing stuff teenaged boys could lose a finger or two playing with." |
#48
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On Mon, 27 Dec 2004 19:42:10 UTC, pyotr filipivich
wrote: deleted good comments about Kalashnikovs and their designer "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." 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. tschus pyotr cheers, Chris -- |
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