Note that due to unforseen circumstances I was unable to attend the foundry day.
Air drying clay figures prepared for sand casting.
Sand casting, also known as sand molded casting, is a metal casting process characterized by using sand as the mold material.
There are six steps in this process:
- Place a pattern in sand to create a mold.
- Incorporate the pattern and sand in a gating system.
- Remove the pattern.
- Fill the mold cavity with molten metal.
- Allow the metal to cool.
- Break away the sand mold and remove the casting.
[image source] https://en.wikipedia.org/wiki/Sand_casting#/media/File:Haandform-e.png
Figure creation
Two figures were created for sand casting. With the rationale that if one was too large the other could be used.
The process for creation:
Wire armature based on the templates below
Air drying clay was applied to the armature and wraped up overnight to firm up (but not harden)
The forms were then refined and allowed to harden in preperation for casting. Setting time of air drying clay is approximately 2 days in sunlight. Humidity greatly effects drying time
No comments:
Post a Comment