Flint,
If you are talking about metal castings with you mention "cored castings" the
cores are suspended in the mold via core prints which are extensions of the
cores that fit into the outer mold. Where the core print extends from the
interior into the outer mold you get a opening in the casting.
Additionally, chaplets are sometimes used to maintain the separation between
the outer mold and the core. These are little struts of metal (frequently of
the same alloy being poured) that placed between the core and the outer mold
wall. The metal being poured encases these struts and they become part of the
casting. They are used when there is a possibility of the core floating in
the molten metal (thereby reducing the thickness of the upper casting) or
being moved by the flow of the metal.
bye
martin
Flint Buchanan wrote:
> hi
>
> I have been thinking about the comolding questions that were up a few
> weeks ago, and have this question: is the bond between the materials a
> mechanical bond-ie keys, is it addhesive/chemical, or a combination of
> both?
> also- I use cored castings a good deal, and have been thinking about the
> interior in these terms, if that is correct then what keeps the core
> material suspended, or is it the other way around and the core is injected
> into the outside form.
>
> thanks in advance
>
> Flint Buchanan
> UGA School of Art and Design
> flint@vdl.visart.uga.edu
>
> For more information about the rp-ml, see http://ltk.hut.fi/rp-ml/
For more information about the rp-ml, see http://ltk.hut.fi/rp-ml/
This archive was generated by hypermail 2.1.2 : Tue Jun 05 2001 - 22:53:45 EEST