Aluminum Balls Lost-foam Casting
by DuralM in Workshop > Molds & Casting
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Aluminum Balls Lost-foam Casting
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I've decided to make several aluminum balls using lost-foam casting. Instead of the foam balls I took 3 ping pong balls. I wasn't sure if it would work right but finally it did.
Putting Ping Pong Balls Inside a Saucepan
![Aluminum balls lost-foam casting.avi_snapshot_00.25_[2017.02.14_23.06.05].jpg](/proxy/?url=https://content.instructables.com/FZ6/X83V/IZ4UJVOH/FZ6X83VIZ4UJVOH.jpg&filename=Aluminum balls lost-foam casting.avi_snapshot_00.25_[2017.02.14_23.06.05].jpg)
![Aluminum balls lost-foam casting.avi_snapshot_01.04_[2017.02.14_23.07.03].jpg](/proxy/?url=https://content.instructables.com/F57/0Z8Y/IZ4UJVQ4/F570Z8YIZ4UJVQ4.jpg&filename=Aluminum balls lost-foam casting.avi_snapshot_01.04_[2017.02.14_23.07.03].jpg)
![Aluminum balls lost-foam casting.avi_snapshot_01.36_[2017.02.14_23.08.18].jpg](/proxy/?url=https://content.instructables.com/F8Z/HK25/IZ4UJVQ6/F8ZHK25IZ4UJVQ6.jpg&filename=Aluminum balls lost-foam casting.avi_snapshot_01.36_[2017.02.14_23.08.18].jpg)
My flask was to small for this pattern, so I've decided to use a saucepan.
Casting
![Aluminum balls lost-foam casting.avi_snapshot_02.34_[2017.02.14_23.09.23].jpg](/proxy/?url=https://content.instructables.com/F61/C0OU/IZ4UJVNV/F61C0OUIZ4UJVNV.jpg&filename=Aluminum balls lost-foam casting.avi_snapshot_02.34_[2017.02.14_23.09.23].jpg)
![Aluminum balls lost-foam casting.avi_snapshot_03.22_[2017.02.14_23.10.33].jpg](/proxy/?url=https://content.instructables.com/FWP/ZPHN/IZ4UJVNW/FWPZPHNIZ4UJVNW.jpg&filename=Aluminum balls lost-foam casting.avi_snapshot_03.22_[2017.02.14_23.10.33].jpg)
![Aluminum balls lost-foam casting.avi_snapshot_03.49_[2017.02.14_23.11.01].jpg](/proxy/?url=https://content.instructables.com/FB6/S26Z/IZ4UJVO1/FB6S26ZIZ4UJVO1.jpg&filename=Aluminum balls lost-foam casting.avi_snapshot_03.49_[2017.02.14_23.11.01].jpg)
When aluminum was melted I started to pour it but very slowly. These balls are very flammable.
Nice Texture
![Aluminum balls lost-foam casting.avi_snapshot_05.26_[2017.02.14_23.12.52].jpg](/proxy/?url=https://content.instructables.com/FM9/07GM/IZ4UJVO7/FM907GMIZ4UJVO7.jpg&filename=Aluminum balls lost-foam casting.avi_snapshot_05.26_[2017.02.14_23.12.52].jpg)
![Aluminum balls lost-foam casting.avi_snapshot_06.30_[2017.02.14_23.13.08].jpg](/proxy/?url=https://content.instructables.com/FN8/IK14/IZ4UJVOB/FN8IK14IZ4UJVOB.jpg&filename=Aluminum balls lost-foam casting.avi_snapshot_06.30_[2017.02.14_23.13.08].jpg)
In result, I see that these balls burning very different to the foam. The surface is not smooth but looks very good. They have a lot of micro-carving.