MadModder
Gallery, Projects and General => Member Videos => Topic started by: ironman on September 08, 2015, 08:49:42 PM
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Here is a video showing how I made the mold when ductile iron was melted.
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Now there's a method of casting I hadn't seen before! Excellent, and informative.
Ironman are you still using cement and sand mix for your core sand, or is it something else?
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No I found that cement sand cores are hard to dig out in tight pockets so I use more expensive binders (Fiberglass resin) I still think that cement sand is the cheapest core sand around.
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Oh, fiberglass resin.....is it the common fiberglass polyester laminating resin, and hardener, or is it a special core sand resin made for the purpose?
The cores look very sharp and strong.
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Thanks for that :thumbup: very interesting watch :clap:
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Thank you for a very interesting informative demonstration!
Regards, Matthew
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The shop where got it from sells all kinds of resins for molding and fiber glassing, not foundry molds. When I told him I was going to use it for foundry cores he said I was crazy, he does not know me very well.
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Very nice thanks for showing! I always look forward to your video's!
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The shop where got it from sells all kinds of resins for molding and fiber glassing, not foundry molds. When I told him I was going to use it for foundry cores he said I was crazy, he does not know me very well.
:lol:
It's a poor synonym for innovative indeed!
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Nice looking casting.
I assume that the advantage to using cores rather than a pattern is to avoid draft angles? Or is it just faster?
Thanks for posting.
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In this case it's the multi piece core-box that avoids the need for draft. Casting in a core doesn't necessarily avoid draft. This whole molding session taken together for the particular purpose is very cool. :clap:
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Nice looking casting.
I assume that the advantage to using cores rather than a pattern is to avoid draft angles? Or is it just faster?
Thanks for posting.
Not only does it avoid draft, but the core boxes are much easier to make than a patern!
Regards, Matthew.