Love Casting

Which two handed tool is used to remove waste from the casting sand?

admin — Sat, 04 Feb 2012 06:53:27 +0000

Technical/ Craft & Design.

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.

How to trace a picture onto die cast aluminum?

admin — Mon, 30 Jan 2012 08:20:20 +0000

Can I use carbon paper and then go over the transfer with a marker?
I’m trying to label and decorate an aluminum electronics panel (guitar stomp box), and want to put some graphics on it without silk screening, etching, etc.
Any ideas on how to trace images onto it? Once I trace the picture, I can go over it with colored sharpies.
Thanks!

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.

how many different kinds of metal casting techniques are there and what are they?

admin — Wed, 18 Jan 2012 00:22:20 +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.

Can die castings be produced in iron and steel?

admin — Fri, 13 Jan 2012 05:11:41 +0000

How can die castings be produced in iron and steel? 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 … Continue reading →

can you melt brass in a cast iron skillet?

admin — Wed, 11 Jan 2012 00:18:26 +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.

Is it possible to cast bullets out of brass?

admin — Fri, 30 Dec 2011 00:43:19 +0000

Would brass be too hard for the barrel? I mean, people use lead with copper, brass jackets, but why don’t people cast bullets from solid brass? I actually was wondering this, because there are some people who shoot a lot of .22 and a lot of centerfire could theoretically use .22 brass to cast bullets for their centerfires. Anyone know if that’s possible?

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.

In sand casting, how much should I make the pattern size bigger so that when shrinkage occur….?

admin — Sun, 25 Dec 2011 07:18:25 +0000

…..i can still have the casting as the actual final size that I desired? Let’s say the final length is 12.5mm… i think you should build a big and strong one so that it doesn’t get washed away by the … Continue reading →

what is the main similarity among all dental casting metals?

admin — Fri, 23 Dec 2011 01:00:16 +0000

there are many casting metal are used in dentistry. But all of them have a criteria in common. I want to know what is that?

Well, there are a few. You need biocompatibility, (which is not the same as being totally inert), you need a degree of strength and wear resistance to withstand all the occlusal forces, you need a small grain size, not too high a degree of corrosion,…whew! That’s a bunch!
Here’s a link to an article that discusses the subject in greater detail:

**Hope this helps!

Can a cast metal outside doorhandle that snapped in two pieces be repaired?

admin — Sun, 11 Dec 2011 04:12:03 +0000

specifically the cast metal door handles on the 66 chevell/elcamino. I can’t buy just one, it has to be a pair and its 50 bucks at best not including the shipping… gawd..

How does metal casting make use of the different characteritics of liquids and solids?

admin — Fri, 09 Dec 2011 03:08:20 +0000

. . . The question is not very clear . . .

It’s the second time !