The art of casting , molds and forging


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Old 03-16-2013, 05:44 AM   #1
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Default The art of casting , molds and forging

It is truly an art to know how to do these things .
How cool would it be to make your own brass and molds for your lead ?
Not only for the ammo side of things , but what if you need a hammer for your 120yo shot gun ? Cast it .
Wondering how many we have here who know these things .
Sand casting
Lost wax casting
mold casting
I know this will be tough to teach on a internet forum but lets give it a shot



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Old 03-16-2013, 09:16 PM   #2
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Technology has changed a lot in recent years. With all the computers, CAD software and CNC machining, it would likely be faster and cheaper to make parts via CNC machining.



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Old 03-16-2013, 09:48 PM   #3
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Quote:
Originally Posted by JWagner View Post
Technology has changed a lot in recent years. With all the computers, CAD software and CNC machining, it would likely be faster and cheaper to make parts via CNC machining.
right now its kinda hard to get a cnc machine at walmart. when the world goes ohsht from glorious leader's spending binge how easy is it going to be to get parts then??

the idea has merit.
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Old 03-17-2013, 04:24 PM   #4
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How then do you make the parts for the cnc and cad ect ect

How did the guy make the first lathe ?

Its a art that will be lost soon if we dont learn it

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Old 03-17-2013, 11:30 PM   #5
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I did some sand casting 30 or so years ago. Time to break out the books, I feel a video coming on.

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Old 03-18-2013, 12:23 AM   #6
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Quote:
I did some sand casting 30 or so years ago. Time to break out the books, I feel a video coming on.
Teach us O' Obiwan Kanobi
What kind of sand is used ?
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Old 03-18-2013, 12:46 AM   #7
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Casting steel is pretty difficult.

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Old 03-18-2013, 01:21 AM   #8
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Mostly cast with aluminum and such. I don't think you can cast with steel since steel is refined iron ore. At least in my recollection, which has been known to be flawed.

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Old 03-18-2013, 01:33 AM   #9
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Well I would imagine with most ferrous metals you would have a hard time heating to liquid form at home .
I did learn that with copper , its has to be 100% pure in order to be used as electric wire , by what I understood , recycled copper can not be used .

Small amount of steel could be heated to liquid by oxy, acetylene , but I would assume you would need an original part to mold , say a SxS hammer using wax then you use the wax to get your 1st mold then pour , say ceramic to get your positive to make a final negative mold of the correct size to which you could pour you final material .
Sound close enough ?

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Old 03-18-2013, 02:25 AM   #10
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Many parts can be made without a milling machine. A common way is take a piece of steel and draw your part on it. Drill holes all around your drawing to get the rough piece. Now you have almost the same as a rough casting(but odds are better steel). Finish off this piece with a file(sometimes called a hand milling machine). Many things were and still are made out of cast iron(but not gun parts). Casting with steel is quite a process. Obviously we have all seen many parts of guns made from aluminum, which is fairly easy to cast. Our little part of the world has a lot of scrap steel. We can make many things from that without melting it. Few parts in guns have to made very hard(and many of those can just be surface hardened).



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