The necklace consists of a silver thread on which two pendants are hanging, the first is in silver 925 and was made using the lost wax casting technique, when the second, it’s a tendril in lignified wood that I harvested after many hours of research in the vineyards to find the right one !
What is lignified wood?
It is a transformation made over time on parts of a vascularized plant that are then transformed into wood; it is the result of the fixation of the lignin between the cells but also inside them.
A lignified plant is therefore more rigid and more solid.
For those who wonder what are the different stages of the lost wax casting technique:
Lost wax is a process in which the molten metal replaces, by melting, a wax model placed in a mold.
This method is known at least since the fourth millennium BC. J. C. Nahal Mishmar, Palestine, has found lost-wax copper objects from this period.
What is the advantage of this technique?
It allows the casting of complex parts in one piece ( with out soldering ) with great precision in the details.
1st Step: Realization of the first piece. A wax model made by hand,
Step 2: The mold: it is the footprint of the model. It is made of rubber.
Step 3: Liquid wax is injected under pressure into the rubber mold
Step 4: The assembly: the waxes are then arranged around a heated rod, to form a casting tree. The wax tree is then placed in a metal cylinder.
Step 5: The investment: The metal cylinder is filled with a plastery mixture. Then it is placed in an oven to be cooked. In this way the wax tree will melt and flow to leave only the imprint of objects.
Step 6: The casting: The cylinder is placed upside down and then the molten metal is poured inside: the metal must come to occupy exactly the place of the wax.
Step 7: The metal shaft: Finally, the hot cylinder is immersed in cold water so that the plaster breaks up and the metal shaft can be recovered.
Step 8: Deburring is the step of removing the casting rods from the cast iron shafts.