Greensand Casting: Difference between revisions
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*From Backyardmetalcasting - [https://www.backyardmetalcasting.com/greensand.html] | *From Backyardmetalcasting - [https://www.backyardmetalcasting.com/greensand.html] | ||
*Sand + bentonite, mulled - [http://www.foundry101.com/archive.htm] | *Sand + bentonite, mulled - [http://www.foundry101.com/archive.htm] | ||
=See Also= | |||
*[[Open Source Metallurgy Construction Set]] | |||
=Useful Links= | |||
*[https://en.wikipedia.org/wiki/Sand_casting#Green_sand Wikipedia Page on Greensand Casting] | |||
Revision as of 12:29, 7 April 2019
Intro
There are 2 main casting methods, each about 40% of all casting processes: greensand and no-bake molding. No-bake uses binders that set.
Technique
- Comprehensive diagram of all casting types - [1]. MIG Casting is not included. Binders can be clay, chemically setting binders, and polymerized oils (motor oil)
- Nobake (airset or precision sand) casting - use a binder with sand. [2]
- Types of binders - [3]
Greensand Sources
- K-bond- the open source oil sand - [4], hint from [5]. Another link to PDF of formula - [6]. See Definitive Article on K-Bond.
- Petrobond - good for novices - [7]
- Ebay - 5 lb - $20 - [8]
- More about oil-bonded sand formulas - [9]
Casting Companies
- Commercial airset sand casting - [10]
Greensand Formulas
- One here, includes oil and bentonite - [11]