Wax RING carving workshop £75 You will have the opportunity to carve your very own ring design in wax with the benefit of all my tips and tricks, your final design will then be cast in silver using the lost wax casting process, with the option of a gold finish if you would prefer (at an extra cost of £25) and returned to you ready to wear!
Wax PENDANT carving workshop £80 Carve your own pendant design in wax, with my tips and tricks carve anything you like! Your final design will then be cast in silver using the lost wax casting process, with the option of a gold finish if you would prefer (at an extra cost of £30) and returned to you with a chain and ready to wear!
All workshops will take place at 11:30 - roughly 2:30 in the lovely gallery at The Framers, Custard Factory, Digbeth, Birmingham B9 4AA unless otherwise stated.
The Lost Wax Casting Process
Also known as investment casting or precision casting this has been a well-known and popular metal casting process for thousands of years. Many early examples of this technique exist in many different countries and regions around the globe, likely due to its versatility of scale, accuracy, ability to replicate details, repeatability and integrity. Lost wax casting is used to produce detailed, intricate metal components that are applied not just to jewellery but to a variety of industries and situations such sculpture, the medical industry, the automotive, rail and mining industries and the aerospace industry to cite just a few.
It is a fairly standardised process. This means that while each foundry will have its own techniques for casting specific metals this method is typically the same for everyone. It consists of several different stages, starting with the creation of a wax model and ending with a finished metal piece.
The phases of this technical process usually comprise of:
creating an original positive model in wax
the wax is assembled on a runner system, also called a ‘tree’ in the trade
a ceramic shell is built around the assembly via a dipping and drying process, this is called the ‘investment’
the shell is de-waxed with high-pressure steam and fired in an oven to provide mechanical strength
molten metal ( in our case silver) is then poured into the pre-heated shell
the ceramic is broken off once the metal cools
the parts are cut from the ‘tree’
This is when the silver pieces are given back to us, in a rough state. We then take the piece through the ‘cleaning up’ process which involves removing what we call the sprue (the feed positions) which are like little nubbins of metal where the channel once existed. These are filed away to reveal the original design form. Next we polish the piece and apply any other surface textures or finishes required.