PROCESS

The elaboration process of the sculptures is long and laborious, since they are handmade works that will last a lifetime, since they are made of bronze, a quality material resistant to corrosion.

1. The first step consists of making sketches with a budget for the client, taking into account his ideas and trying to give them form, from which he will choose the one he likes best.

 

2. The next step is, with the help of the appropriate tools, to model the figures with red wax, with a flexible and soft texture. Once we have the figures done, they are taken to the foundry.

2. The next step is, with the help of the appropriate tools, to model the figures with red wax, with a flexible and soft texture. Once we have the figures done, they are taken to the foundry.

 

3. To cast the pieces, the first thing to do is to put some wax sprues, where the melted wax will come out and where the molten bronze will enter later.

 

4. Next, a cylinder of mincing (a mixture of plaster and chopped brick) is filled and before it solidifies, the figure is placed, with the drinkers sticking out.

4. Next, a cylinder of mincing (a mixture of plaster and chopped brick) is filled and before it solidifies, the figure is placed, with the drinkers sticking out.

 

5. Once the mincing is hard, the cylinder is placed in the oven by turning it over. In this way, when the oven is heated to 700ºC, it will cause the wax to melt leaving the hollow of the sculpture.

 

6. When there is no wax left inside, it is turned over again, either out of the oven

6. When there is no wax left inside, it is turned over again, either out of the oven

 

7. On the other hand, bronze ingots are melted in the crucible, reaching 1200ºC. The molten bronze is poured through the troughs, filling the gap left by the wax previously.

 

8. Once it is cold, the mincing cylinder is broken with a spout, where the cast pieces come out. As the sprue is also made of bronze, it will have to be removed.

8. Once it is cold, the mincing cylinder is broken with a spout, where the cast pieces come out. As the sprue is also made of bronze, it will have to be removed.

 

9. In addition to removing the sprues, the part is reworked with a milling machine, which will remove any imperfections in the casting.

 

10. On the other hand, the base where the figure will go is made, which can be made of wood or iron. If it is wood it will be anchored, if it is iron it will be soldered with silver.

10. On the other hand, the base where the figure will go is made, which can be made of wood or iron. If it is wood it will be anchored, if it is iron it will be soldered with silver.

11. The figure is welded to the base with silver. In addition, if necessary, elements are added that have not been possible to cast due to their narrowness, such as sticks, straps, golf clubs...

 

12. Once welded, the sculpture is sandblasted (given with sand pressure), this will ensure that no imperfections remain, and that the marks of the weld disappear, leaving it ready for the patina.

12. Once welded, the sculpture is sandblasted (given with sand pressure), this will ensure that no imperfections remain, and that the marks of the weld disappear, leaving it ready for the patina.

 

13. Finally, the patina is given, which is the colour that the sculpture will adopt when chemicals are added to the figure, heated by a blowtorch. For example, the green is copper nitrate mixed with iron nitrate.