Comments for Love Casting

Comment on Which two handed tool is used to remove waste from the casting sand? by northridgeville

northridgeville — Sat, 04 Feb 2012 12:30:59 +0000

To filter waste (iron/copper/lead scraps) from casting sand, sand that you wish to re-sue would be a sieve.

Cooling drum for mold shaking, casting cooling and sand recycling
is another term.
References :
http://www.directindustry.com/prod/belloi-romagnoli/cooling-drums-for-mold-shaking-casting-cooling-and-sand-recycling-57625-373694.html

Comment on How to trace a picture onto die cast aluminum? by lib.rare.ian

lib.rare.ian — Mon, 30 Jan 2012 14:04:59 +0000

Carbon paper is waxy, so it might work for you. If not, try graphite paper (transfer paper) from an art store, it's cleaner and not greasy. I really don't know which would work better on cast aluminum.
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Comment on how many different kinds of metal casting techniques are there and what are they? by Mike1942f

Mike1942f — Wed, 18 Jan 2012 05:55:59 +0000

Half a dozen?
Die casting is done with lower melting point metals and involves a metal die into which the metal is forced – like plastic injection molding. Metal bodied electric tool cases like hand drills and kitchen mixers are made this way.
Simple pour molding into reusable molds is done with low melting point metals up to aluminum. Short run toys for example, lead soldiers, bullets for home reloading.
Simple pour molding into non-reusable molds – aluminum into sand molds for making address plaques, etc. is done this way.
Enclosed sand casting with poured metal with two or more part molds and perhaps cores, venting and sprues to get the metal in. Iron/steel/aluminum engine blocks, heavy duty basic castings for construction equipment – further machining being done for bearing mounts, etc.
Lost wax casting with solid investment – rings, fine art. Bronze, brass, silver, gold. Mold is heated to melt out the wax and set the investment which is then chipped away from the poured metal.
Lost wax casting with ceramic investment – wax is dipped in liquid then silica flour and then back and forth to build up a thick coating – a dewaxing oven burns out the wax and fuses the silica to a hard shell into which, while still hot, the metal is poured, the shell then being chipped/blasted off.
Lost wax casting with sling molding – a single item mold is made up usually with investment and is heated and mounted on an arm in a device which has a place for melting metal with a torch, a heavy spring drives the mold arm in a circle and the metal is released to forcefully fill the mold like injection casting but with much higher temperature metals, up to platinum in jewelry making.
I probably missed one or two.
References :
My metal working experience http://www.mikegigi.com/metalctr.htm

Comment on Can die castings be produced in iron and steel? by Man-eating WOMBAT

Man-eating WOMBAT — Fri, 13 Jan 2012 11:01:59 +0000

Impractical for steel and iron alloys since dies are typically made of heat resistant alloy steels themselves. With die casting, in order for the cast part to solidify, the walls of the die need to absorb the excess heat from the molten metal.
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Comment on Can die castings be produced in iron and steel? by Mark

Mark — Fri, 13 Jan 2012 10:40:59 +0000

i guess Die casting is mostly used for metals with lower melting point like aluminium … or it is also used in case of plastics … Iron and steel have higher melting point so i guess die casting is not used
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Comment on can you melt brass in a cast iron skillet? by briggs451

briggs451 — Wed, 11 Jan 2012 06:20:59 +0000

Technically, yes you could because brass melts at about 950 while cast iron melts around 1,300 F.

You would do better to buy some ceramic crucibles. You can find them on the internet and sometimes used ones on Ebay. They’re cheap. You must be very careful handling molten metal. A crucible makes it easy, certainly easier than a cast iron skillet. I learned my lesson the hard way when some molten lead accidently dripped into my shoe.

By using a skillet are you intending to use a kitchen range? If so, you won’t get the temperatures necessary to melt brass. I use two propane torches in a home-made refractory smelter.
References :
Done that

Comment on can you melt brass in a cast iron skillet? by Zach Barron

Zach Barron — Wed, 11 Jan 2012 05:58:59 +0000

Yes, you could but it is unlikely in most situations it would take a metal furnace
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Comment on Is it possible to cast bullets out of brass? by Roddy

Roddy — Fri, 30 Dec 2011 06:58:59 +0000

Brass would be a poor choice to cast bullets. Lead is far heavier and softer and allows for expansion. Jacketed bullets always have a lead core. To make a bullet out of solid brass you would have to reconfigure your powder load. Lead core bullets, being heavier than pure brass, require a load that will provide the velocity and the impact required for that caliber.
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Comment on Is it possible to cast bullets out of brass? by awftx

awftx — Fri, 30 Dec 2011 06:24:59 +0000

Takes ALOT of heat to melt brass… the brass jacketed bullets are an alloy and not a solid brass…
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Comment on In sand casting, how much should I make the pattern size bigger so that when shrinkage occur….? by Adrash

Adrash — Sun, 25 Dec 2011 12:45:59 +0000

i think you should build a big and strong one so that it doesn't get washed away by the waves
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