The Gold Casting Process is a segment of jewelry creation with gold. Gold is often the most favorable choice of metal, whether you want to design a customized jewelry piece or an engagement ring. The gold casting process involves several steps, like creating a design, melting and pouring gold, cooling the design, removing the flask, and finally finishing the jewelry design, but the main factor in casting is the professionalism that our extensive metal casting department processes daily. 

Gold is much easier to press out than many other metals because it is a moldable metal. There are three types of gold concerning colors and karats

  • White Gold (10K, 14K, 18K)
  • Rose Gold (10K, 14K, 18K)
  • Yellow Gold (10K, 14K, 18K, 22K, 24K)

Since gold is found in different colors and karats, the unique combination indicates that each temperature cycle and process is different from other metals. Gold has been a favorite jewelry metal because of its appearance, value, and properties.

What is Gold Casting?

what is the gold casting

Gold casting is a part of creating jewelry in which a jewelry mold is designed with a wax pattern, and then molten gold is filled in the mold to create a customized jewelry design. The whole process of gold casting is time-consuming and complicated. The wax pattern that is used in casting gold is in three categories: natural, synthetic, and customized, each with its advantages and disadvantages.

Gold is a soft metal. That’s why it is very easy to mold and press gold into a customized jewelry design shape or wax mold; in fact, it is so easy to stretch that only one ounce of gold can be extended to over 300 square feet. Gold casting is an art form that has existed for thousands of years. With the advancement of technology, it has become more dynamic and vibrant.  

What are the methods of Gold Casting?

There are mainly two methods of gold casting 

First Method – The Traditional Gold Casting Method

the traditional gold casting method

The traditional method of casting gold was an ancient method. Still, this method is used in different parts of the world where, especially, new technology for making gold jewelry has yet to be introduced. Many jewelry designers find the traditional way of casting gold more hectic for some reasons, like that it requires plenty of staff, is not environmentally friendly, is more time-consuming, the chances of missing gold are higher, there is no way to prevent oxidation, and the result in gold is of low quality. 

Second Method – Vacuum Gold Casting Method

vacuum gold casting method

The vacuum gold casting method is more favorable as compared to the traditional gold casting method. It is an environment-friendly method, with no wastage of gold, anti-oxidation, precise jewelry design, and cost-effective gold casting, as there is no need for more staff as all the processes are automated. 

Is Gold Easy to Cast?

The gold is quite resilient, moldable, and easy to press out. Being a soft metal, it is very easy to mold this metal into a customized design, but the whole process of casting gold is time-consuming and complicated as well. Moreover, professionalism is a crucial part of casting gold for a customized jewelry design for a special occasion or a routine wearing viable jewelry piece. Although the whole process of casting gold is not so easy but complicated, it needs a professional team or department, as we offer you to cast your gold jewelry with us for the best services.  

What is the Temperature of Gold Casting?

When it comes to the temperature of gold casting, there are many factors to consider. Like the weight of the metal, different types of metal (i.e., karats, color, alloy type), thickness, or detailed levels of the model of jewelry design. 

Estimated temperature points are mentioned below in a chart for your convenience.

MetalMelting Temperature (F)
10K Gold (Yellow)940-1040
10K Gold (White)970-1070
14K Gold (Yellow)900-1000
14K Gold (White)1150-1250
18K Gold (Yellow)940-1040
18K Gold (White)1025-1125
22K Gold (Yellow)1000-1150

Does Gold Shrink after Casting?

Yes, many metals shrink after casting. When melting gold into a mold, it shrinks after getting cold. But what is the amount of gold that shrinks? It depends on the jewelry size, the type of gold, and the colors and karats. If you want to cast a small, viable jewelry piece, for example, a ring, it will take less shrinkage, which will be adjusted after finishing the final product. When the gold is cast into a jewelry design, flasks get removed from it, and the product gets the finishing touch. Gold shrinks after casting, approximately from 1% to 1.9%. It depends on the type of alloy (gold).  

Gold Casting Process

There are several steps involved in casting gold, Here is a quick tour of the gold-casting process

Creating your Pattern or Design

creating your pattern or design

First, choose a design or pattern and create a wax model. A 3D printer or CNC machine can be used for this purpose. For an identical model, wax is injected into rubber or metal molds to create them. The wax mold is attached to a central wax rod in a tree-like arrangement. Arrange the wax model carefully on the central rod. The right arrangement will help the gold flow and cool properly. Place the wax tree in a metal cylinder or flask. Now prepare a slurry with water and plaster. Use a vacuum machine to remove air bubbles from the plaster slurry. Pour plaster slurry into the flask of the wax tree model. Let the mixture inside dry properly.

Melting the Gold and Pouring it

melting the gold and pouring it

The next step is to melt and pour the gold into the prepared flask. (The flask is preheated to a temperature of 1100°F to 1300°F for small pieces and pieces with great details. For those pieces with large and simple details, it requires an 800°F to 1000°F preheated flask.) It depends on the alloy gold and at what temperature the gold will melt perfectly. Melted gold can be poured directly, but there are many new techniques, including centrifugal casting, vacuum-assisted casting, and pressure casting.

Cooling the Gold

The next process is cooling the gold to give it the final touches, including removing the flask, assembling, polishing, and finishing. The melting points depend on the type and category of gold. Similarly, cooling the gold also depends on the type of gold, the type of design, and many other circumstances depending on the nature of the design.

Removing from the Flask

removing from the flask

The next step is to remove the flask by putting the mold in a tub or bucket of water, which is the more convenient way. All the plaster will be removed from the design.

Finishing the Final Product

finishing the final product

Then the model is clipped from the tree and inspected to see if any defects are present. Once the product is approved, it is forwarded to our jewelers, who clean the castings, assemble them, polish them, and set the stones to make a beautiful customized jewelry design. 

Explore our gold castings with the eyes of your heart. You can choose the gold-casting wonders from our unique crafting collections or share your suggestions with us. Our extensive gold casting team will mold molten gold into a treasure that will tell a story of your customer’s love, heart, life, and dreams through our incredible gold casting designs.

Our skilled artisans put their hearts and souls into every casting piece and infuse them with dreams and emotions that inspire.Each detail is a labor of love, ensuring that your jewelry casting experience is enchanting. Unlock the door to your end user’s emotions, and let the brilliance of gold casting illuminate their world. Contact Lukas Casting House now and experience the magic that awaits you.

Casting

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