um does your oven have a digital thermometer readout, and really precise temp control, and a timer interfaced with the thermostat... 'cause if not you're going to spend an awful lot of time sitting in front of your oven, staring at the thermometer, and gently adjusting the nob.Originally posted by Orven
but my oven can get as high as 750 degrees.....
:dancing:Originally posted by ssaddict
I think you'll spend more money on energy than its worth. Your talking 12-24 hours of slowely lowering the temp or something like that.
good question.. what's the recipe for a 6061 grade alloy? I need the measuring cup units for individual metal. :devil:Originally posted by alex spencer
when are you going to add the other metals into it (magnesium and steel/iron?) to turn it into a useable alu alloy? :devil:
Get a copy of the Machinery's Handbook (correct title). We refer to it as the Machinist's Handbook in the industry. It is pretty much the standard reference book for everyone from engineers to machinists. All old time machinists grew up on this book. It will tell you what you need to know about the chemical composition of SAE steels, non ferrous alloys, titanium alloys, etc... . It also explains heat treatment of metals. Starting your own metal foundry at home is a losing proposition and a potentially dangerous one too. Magnesium is an alloying element used in aluminum, and I can just see the fireworks display going off in your garage.Originally posted by Orven
good question.. what's the recipe for a 6061 grade alloy? I need the measuring cup units for individual metal. :devil:
I use milk of magnesia for that and some epsom salt...Originally posted by shootr
(and don't forget to use it to restore those oil soaked brake pads.......)
so can I use aluminum soda cans for my aluminum billet foundation/raw material.. I'm shooting to make a 6061 alloy grade for the linkages and rear end swingarm and I'm still contemplating on the main triangle composite..whehter it be a carbon composite or thermoplastic. I think I'd go with a ghetto version of termo plastic and use empty plactic milk jugs.. weaved onto a landscaping net....Originally posted by rotecguy
Umm, I think I can maybe explain a little... the metals we are talking about here are alloys of various metals that have different phases at different temperatures. the different phases have different properties, some desirable for your application, some not so desirable. The idea is that you want to be able to pick which phases are present in your alloy in what amounts to give you the most favorable properties for your part.
For instance, your most basic steel is a mixture of mostly iron with some carbon thrown in. There are various phases that you can have, for instance austenite and martensite. austenite is a relatively soft, ductile phase, while martensite is a hard but brittle phase. If you heat the steel up to a temperature where the martensite forms, then quench it quickly in cold water, the steel gets stuck in the martensitic phase essentially, and retains the hard, brittle properties. if you cool it slowly, it has time to change back to the original austenitic phase, with the corresponding properties.
that is sort of a simple example, and nobody probably cares, but it gave me something to type for a coupla minutes, so there!
Anyhow, If you want to do home heat treating, figure out what alloy you have, what you want to accomplish by heat treating, consult your trusty phase diagrams, and go to town...
dude, that's nothing new. Spinergy's using that innovation on their Spox wheels already...Originally posted by shootr
I wanted really light wheels so I laced them with fishing line..
I wuz thinking of the same concept...but with a wood cement and finish it with enamel for the clea coating...but I can't imagine pedalling a 50 lbs bike at all..and smelling like varnish..Originally posted by WTGPhoben
I made a whole bike out of that elmers 200lb epoxy. It's kinda heavy, but holds up real well when I ride my fat-ass buddy on my handlebars. (it's also a cool clear see-thru color)
Are you mocking me????:angry:Originally posted by KonaDude
you (in ideal situations) could.
Who are you calling fat?Originally posted by WTGPhoben
I made a whole bike out of that elmers 200lb epoxy. It's kinda heavy, but holds up real well when I ride my fat-ass buddy on my handlebars. (it's also a cool clear see-thru color)
huh? you sniff glue......Originally posted by Toshi
Who are you calling fat?
I'm trying to figure out who Keith's hypothetical "buddy" on this hypothetical glue frame of his is -- if it's me, I'll be angry!Originally posted by Orven
huh? you sniff glue......
I dunno.. Nike, in its inception, used waffle irons to cast the rubber sole on their running shoes.. So in essence, it's a patented manufacturing process. Maybe the George Foreman grill cooker?? No?Originally posted by oldfart
So do you think I could use my waffle iron to make carbon fiber castings. Sort of Optimum Compaction Waffle Shaped construction. Then I could CNC the waffles into the shapes I need.
Fished in
you stay away form my handlebars!! I'm having enough trouble with my fork without adding an extra 160lb to the front endOriginally posted by Toshi
Who are you calling fat?