In this sand casting project I used one sprue and two risers making sure the mould cavity would be full with molten aluminum and enough aluminum to "feed"the casting without having any shrinkage.
Making a mould with a pattern that is flat on one side is very easy and it didn't take too long to prepare.
In the image you can see that the risers did their part by feeding the mould and preventing casting defects.
The finished Aluminum lizard------>
This is my II aluminum lizard casting I made on July 2011:
Welcome to my FlamingFurnace, backyard metal casting blog.
Hi everyone, I mainly focus on metal casting projects using recycled ♻ scrap aluminum and other accessories in the pattern creations.
Aluminum is a very versatile material and I would like to promote the awareness of aluminum recycling via different metal casting projects.
Feel free to check my YouTube channel where I provide detailed explanations, tips & tutorials for best backyard aluminum casting methods, homemade foundry equipment & of course the importance of safety when working with molten aluminum.
So remember recycle and Enjoy my blog ;-)
March 12, 2011
March 03, 2011
Aluminum eagle sand casting
This week I sand casted an aluminum eagle. The eagle pattern is relatively flat so it's an easy and quick job to make the sand mould. I got more scrap aluminum from a baby pram frame and some un-used aluminum crutches. After stripping all the plastic parts and braking the aluminum so it will fit into my crucible I got plenty of molten aluminum alloy to keep me going for a few more projects.
After making the mould I started to melt the aluminum alloy. The melting process was very quick, most of the aluminum parts were thin and they are no match for the high tempature of the foundry. Only two scoops of
dross needed to be skimmed off, so I got plenty of molten aluminum.
Here are a few images of the aluminum eagle after the aluminum cooled down and I opened the flask.
Nothing goes to waste all the extra aluminum is turned into ingots.
Sprue and Riser are cut off for another casting cycle.
The aluminum eagle turned out very well and I am thinking of making a few more :-)
This is another addition to this post my "flock"of aluminum eagles is getting bigger. I made 3 in 1 flask. Next I started to tap screws on the back of them to secure them to the wall.
This casting I made using only one riser and one sprue for two aluminum eagles.
After making the mould I started to melt the aluminum alloy. The melting process was very quick, most of the aluminum parts were thin and they are no match for the high tempature of the foundry. Only two scoops of
dross needed to be skimmed off, so I got plenty of molten aluminum.
Here are a few images of the aluminum eagle after the aluminum cooled down and I opened the flask.
Nothing goes to waste all the extra aluminum is turned into ingots.
Sprue and Riser are cut off for another casting cycle.
The aluminum eagle turned out very well and I am thinking of making a few more :-)
This is another addition to this post my "flock"of aluminum eagles is getting bigger. I made 3 in 1 flask. Next I started to tap screws on the back of them to secure them to the wall.
This casting I made using only one riser and one sprue for two aluminum eagles.
February 25, 2011
Aluminum sun, sand casting
This week I sand casted aluminum sun for my father in law garden.
I started by making a plaster pattern in a plastic mould. I painted the plaster cast yellow to hang it on the bathroom wall (decorative and could be used as pattern again). After the paint was dry I varnished the plaster cast so it will be easy to remove it out of the petrobond sand.
To get the plaster pattern out of the mould I used 2 screws on the back, The mould was perfect.
Then I made the sprue and riser on the back of the sun, I predicted there will be some aluminum shrinkage because the amount of molten aluminum used in this casting.
The pouring part was the easy part I was all most short with the molten aluminum but it was just enough to fill the sprue and riser extension half way up.
The sun casting turned out very well, some shrinkage on the back because the lack of aluminum to feed the mould. You can see in the image that the sprue and riser extension did their part. The only thing left to do was to cut off the sprue and riser with a grinder make two holes for screws and hang it on the wall.
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