The molds of Civilization

Fellow

by Gilson Domingues -

This article has colaboration of Pietro Domingues

In this section we are going to talk about molding. We introduce talking about its utility and the current methods used in this process. We will explain step-by-step how it is possible to make these molds and how to use the molding process in many types of materials.
 

Reproduction by molding

It would be very interesting to think about something and it appears magically!


However, according to nature’s laws, it’s easier things to get messy instead of getting some well defined shape. Actually, shaping something is fun, even if it takes a long time. When we want to make one single part, we can spend hours and hours, and it still is a pleasuring thing. But can we reproduce a lot of them, keeping the same quality at the same time there is no much effort on doing this? This is a challenge that the mankind has been facing for a long time.

To solve this problem, we can use molds! There’s a very simple way to make mudbricks using molds:


Photo: http://www.manutencaoesuprimentos.com.br/conteudo/4372-quais-sao-os-dife...

Photo:http://magodafloresta.blogspot.com.br/p/obra-do-gamarra.html

The process allows us to put a pliable or liquid material (such as liquids) in a cavity called mold, and after being transformed, we obtain a solid part.


Photo: http://www.betaoetaipa.pt/servicos_detail.php?servico=adobe

An everyday example is the ice cube: it’s made putting the liquid water into the ice cube tray, and after some minutes, it turns into solid in a cubic form. Bonbons are made this way also.
This transformation is the main ideia of metallurgy since the beginning of civilization:


Museum of anatolian civilizations – Ankara, Turkey. Photo by Gilson Domingues


Museum of anatolian civilizations – Ankara, Turkey. Photo by Gilson Domingues


Museum of anatolian civilizations – Ankara, Turkey. Photo by Gilson Domingues


Museum of anatolian civilizations – Ankara, Turkey. Photo by Gilson Domingues

The photographs above are examples of molding where liquid metals are casted into rock molds.

Since antiquity, mankind has been making products based on molding process. Jewelry, weapons, domestic utensils, tools, etc. were already made this way.

Currently, big industries as well little communities and artisans still make products through molding and casting.

If we pay attention carefully, we will see that many objects of our everyday life are made by molding. As an exercise, identify 5 objects made through this process. Try to find out how each object was manufactured and projected. Taking a look on everyday objects, you will see that this process allowed engineering and design to develop new technologies over the history.

See too:

How to make silicon molds
http://fablearn.stanford.edu/fellows/blog/how-make-silicone-molds

Reproducing/replicating workpieces
http://fablearn.stanford.edu/fellows/blog/reproducingreplicating-workpieces

 

 

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