Investment and Sand Castings
Investment and Sand Castings
(OP)
At my work, we have investement cast drawings and machine drawings for a particular type of product. Now somehow they want to try sand cast samples, can anyone guide what all kinds of issues i need to consider if i have to change an investment cast drawing to a sand cast drawing.
Do i need to just increase a .25" value to all dimensions so as to make it similar like an investment cast model once its semi finished from the sand cast stage.
Please guide to some direction regarding this..I appreciate all your help
Do i need to just increase a .25" value to all dimensions so as to make it similar like an investment cast model once its semi finished from the sand cast stage.
Please guide to some direction regarding this..I appreciate all your help





RE: Investment and Sand Castings
You may then want to check out potential vendors websites or otherwise contact them as they may have design guides that are of use.
KENAT,
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RE: Investment and Sand Castings
Thomas J. Walz
Carbide Processors, Inc.
www.carbideprocessors.com
Good engineering starts with a Grainger Catalog.
RE: Investment and Sand Castings
The draft angles on the sand casting will be larger and parting lines will have to be cleaned up after casting also. This project is somebodies dream to reduce casting costs which it can do but then the other side of the equation that of machining an acceptable part will probably suffer.
Good Luck,
RE: Investment and Sand Castings
RE: Investment and Sand Castings
If you think education is expensive, try Ignorance.
- Andy McIntyre
_____________________________________
RE: Investment and Sand Castings
Sand casting also gives a very poor surface "skin". As others have suggested speak to a foundry.
RE: Investment and Sand Castings
RE: Investment and Sand Castings
If you think education is expensive, try Ignorance.
- Andy McIntyre
_____________________________________