Sand Casting - PART ONE with Philip White and Jenny Dunseath

PART ONE - Sand Casting Process with Philip White and Jenny Dunseath in the foundry at Camberwell college of Art London. Video by Chris Follows part of the Process Arts Project - http://process.arts.ac.uk/ - University of the arts London:

In this video:

1. Prepare a Pattern. This must be made of a smooth solid substance to withstand ramming, for example sealed wood or plaster.
2. To prepare the Mold: divide the flask (wooden box, made of 2 parts- (top) Cope and (bottom) Drag). Turn over the Drag Face down on a board.
3. Place the pattern in the upturned Drag. Ensure there is enough space around the pattern for Gating (room for runner and Sprue- pouring hole for the metal)
4. Dust with Parting Agent to prevent it sticking. (Parting agent is a hydrophobic material which repels moisture e.g. crushed limestone.
5. Use a fine riddle (large sieve) to just cover the pattern.
6. Use a Paddle to ram the sand, lightly at first to protect the pattern, and then harder to compress the sand.
7. Fill with sand, and ram it until full. Level off and smooth with a trowel.
8. Turn over the compressed Drag and the pattern will be immersed in sand.
9. Put the Cope on the Drag and bolt together
10. Repeat steps 4-7. Take care not to ram the sand too hard as to affect the Drag below.
11. Take Cope off and set it aside. You should be able to see an imprint of your Pattern. Depending on its location use your hole-cutter and cut a Sprue hole by placing your hand on the back of the Cope and push hole cutter through the other side, twisting slightly.

Category:

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• Jenny
• Dunseath
• foundry
• Camberwell
• college
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• London
• Chris
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[ProcessArts]

message from Phillip at Camberwell - Thanks for these messages they are very useful and it is good that people out there.will pass on what they know.

[ProcessArts]

Thanks for the comment,I agree with your observation regarding the design of the Cope and Drag I intend to work on the problem.We have had good results with several split patterns using these boxes,however I can see that using cores will make handling the Cope difficult.

Can you give me any advice on the best ingredients for core mixes?We now have a considerable student interest in sand casting and we need to keep it simple.

Thanks again

PHIL

[phillipja2010]

Hello Phillip & Jenny, Well Done, Well Done ! I have watched all of your 4 episodes on Sand Casting and found them extremely educational and informative. I would like to see you both produce another episode in which you demonstrate how to produce a sand casting where the metal object has a hollow interior. ie hollow pipe.

[ProcessArts]

@phillipja2010 - Many thanks Phillip, I will pass on your encouraging words. We had planned to make more videos, we're just waiting for the right moment, hopefully soon. All the best Chris at process.arts.ac.uk

[wearebestofworld]

nice work and she is so cute :D

[voidmansions]

@ProcessArts

Should anyone wish to view how cheap sand cores can be made from household materials, please visit 'myfordboy' on YouTube and search for 'Metal Casting at Home - part 5 Foundry Core Making'

'myfordboy' also has a video on using sodium silicate and CO2 gas to create the core very quickly.

A rather more narrative approach is made by 'mrpete222' in his video 'FOUNDRY PATTERN MAKING - Part 6'

Apologies for not being able to post the URL's - YouTube forbids posting them!

[voidmansions]

@ProcessArts

Should anyone wish to view how cheap sand cores can be made from household materials, please visit 'myfordboy' on YouTube and search for 'Metal Casting at Home - part 5 Foundry Core Making'

'myfordboy' also has a video on using sodium silicate and CO2 gas to create the core very quickly.

A rather more narrative approach is made by 'mrpete222' in his video 'FOUNDRY PATTERN MAKING - Part 6'

Apologies for not being able to post the URL's - YouTube forbids posting them!

[MrLeonard55]

Jenny, you are so hot. Plus doing all the work.

[DulferCarter]

Jenny,you are so talented dear!