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The precision casting or "lost wax casting" is a method known all over the world. It has been used for more than 4.000 years without major changes. The craftsmen in ancient India and Egypt, the Han civilisation in China, the Masters of the Greek Art, the Etruscan, the gold castings of the South American civilisation, the bronzes of the Benin in Africa, had with these method a great impact on the technical and cultural research of human kind.
The serial reproduction of the wax and the advanced technologies involved today in the process, from the making of the gypsum in vacuum to the melting of the metal in a controlled environment, make these technology the most refined method of casting known today.
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In order to prepare the moulds for castings, we need an original model that can be made of any material (metal, plastic, wood, gypsum, wax…) taking into account a shrinkage of 1,5-2% and a dimensional tolerance of ±0,7%.
It is always better to indicate the most important quotations to be respected, and where to put the alimentary canal.
Particular specifications or dimensional characteristics, superficial or mechanical, will be prior accorded.
| Dimensional tolerances for lenght, width and height |
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Range |
mm 0-14 |
± 0,10 |
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" |
mm 14-100 |
± 0,7% |
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Angular tolerances |
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Up to 90° ± 0°30’ |
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over 90° ± 1° depending on configuration |
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Parallel sections |
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0,10 mm per 25 mm of section |
At the beginning of the project with every article, and only for the first time, a fee is charged for the making of the master mould. The cost is of a few tens of euro, depending on the size of the original model.
There aren't any annoying quantity limits: You can even order a single piece, the prices are not quantity dependent.
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For any type of object or field of application (frames for glasses, micromechanic, musical instruments, railway models, art objects, jewellery, biomedical, etc) we have at our disposal a large variety of over 30 metal alloys, to reproduce with high fidelity every little detail, with thickness beginning from 0.25mm, and resistances from 60 to 300 Vichers.
Additional information for a proper use of the metals can be asked to our Technical Office. |
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