Commercial Lost Foam Casting Process

[GreenTwin]

Here is a good video on the commercial lost-foam casting process.

 

[timo_gross]

Here is a good video on the commercial lost-foam casting process.

Yes interesting.

The injection molding of the foam cores is still an expensive and tedious process. (as in the video stated, costs may stay similar).
@Green Twin: Now we are waiting that you open the mold making and Injection molding department in the shop.

What I found funny when I saw this the first time, in the last century (already 2024 ) that some of the cast parts looked like painted styrofoam. The styrofoam structure was still visible.

Not many processes disappear entirely. Church bells are still made like ages ago.

Greetings Timo

 

[SmithDoor]

The first time foam type casting was in 1976.
It work great but did have cost.

I think where foam would be a big winner in castings like lathe beds and milling main casting. Use a chemical bonded sand.

I did see a cast iron foundry in 1970's where did machine tool casting. The only sand they used was chemical bonded the used a complex patterns and no foam.

Dave