Introduction to Lost Wax Casting
Hen you want to make those intricate metal products, it can be pretty hard to find the right metal that you can use to process the metal. Lost wax casting usually comes in handy in processing some metals into beautiful products.
Some metal products may require the highest level of accuracy, a feat that you may not easily achieve with most metal. Lost wax has everything that it takes to undertake such projects without any problems.
In this guide, we are going to guide you on everything that you should know about lost wax casting.
What is Lost Wax Casting
Lost-wax casting (additionally called “speculation casting,” “precision casting,” or cire perdue which has been translated into English from the French) is the procedure by which a copy metal figure is cast from an original sculpture. The metal alloys are made into a specific design from the wax mold.
For several years, lost wax casting has been used for making jewelry and other fine metal products. One of the reasons attributed for its popularity is it many duplicates of a product can be created as many times as possible.
History of Lost Wax Casting
Lost wax casting has existed for over very many years. The earliest documented known instances of this procedure thought to go back to 3700 BC after tests with carbon-14 dating. They were found in the Cave of the Treasure crowd in southern Israel. Other early instances of this strategy exist in many countries around the world.
During the ancient ages in the locale of Mesopotamia, the lost wax casting was vigorously utilized for little and huge scope casting; in South Asia, Pakistan, a 6,000-year-old copper unique necklace made with this procedure has been found. Egypt, Greece East Asia, Africa, Europe. Objects cast through this method have been found the world over.
Lost wax casting is utilized to create fine details of complex metal parts that are then applied used for various industrial applications. This system may have started a great many years prior, at that point, however, it despite the fact that everything assumes a significant role in the casting of today.
Lost Wax Casting Process: How it Works Steps
Lost wax casting image source researchgate
To some extent, the lost wax casting is a standardized process. This simply means that each individual foundry has its unique ways of doing things; all of them tend to follow the same process.
There are several distinct stages that are followed in this process. They are;
1. The metal tool is cut from the 3D CAD data. This information will act as a guide for the final design of the metal part or product.
2. An original positive model for the component is created. This model is created from the tooling.
3. The wax is then assembled on a runner system, which is commonly known as the ‘tree.’
4. A ceramic shell is built around the whole assembly unit. This shell is created through dipping and drying processes. This is what is referred to as investment.
5. The shell is then dewaxed at extremely high pressure. It is then heated by an oven for the purpose of enhancing its mechanical strength.
6. The molten metal that is to be processed is then poured in the heated shell.
7. Once the metal cools, the ceramic is broken so as to obtain the metal, which has solidified taking the shape and design of the metal.
8. The part is cut off from the ‘tree.’ Finishing and other metal machining procedures can be done on the metal.
Additional inspection can be done just to verify the quality of the parts that have been processed.
What type of wax is used for the investment wax casting?
The main kind of wax that is used for this process is the microcrystalline wax. It is sticky and pliable in nature.
This wax is soft and has a small crystal structure. Such features make it an ideal ax for even the most delicate metals that will be difficult to be processed other methods.
What Materials are Used in Lost Cast Waxing?
There is no doubt that lost wax casting is a versatile method for processing materials. It can be used for processing different types of metals with the most common ones being:
-Stainless steel and related alloys
-Nickel and cobalt
Other precious metals that are used for jewelry, such as gold and bronze, are also subjected through metal wax casting procedure.
What are the Advantages and Disadvantages of Lost Wax Casting
Why should I prioritize lost ax casting over any other method for processing jewelry and other metal parts?
There are several benefits of investment wax casting.
The first advantage is , the method is perfectly suited for small and complex parts. Let’s face it; most metal processing methods are used for building large metal parts. One feature of these parts is they can be easily calibrated.
Small and complex parts are difficult to deal with, and this is why lost metal casting is the preferred method.
Another benefit of investment wax casting is the products rarely require secondary processing or finishing jobs. The surface of the cast metal part is almost in a ready state, so you may not need to polish it again.
Getting the designs for the lost wax casting is cheaper than designing for the other metal processing methods. This is possible because daft angles for the metal processing are not usually required in order to obtain the designs.
3D printed lost wax casting is also the best solution for metals that have a high melting point. Machining such metals can be hectic with other methods, and the lost investment will come to your rescue. The method is also applicable to machines that have low melting points.
Despite the numerous advantages, lost wax casting has some limitations.
One of the disadvantages of investment casting is the high cost of capital. The lost wax casting machines are quite expensive, and they can easily drain your resources.
However, you choose to outsource the service to reliable lost wax casting companies, and this will ease the financial burden on you.
Another limitation of the lost wax casting method is it requires skilled persons to execute the process. Investment wax casting is an involving process that cannot just be handled by anyone. As a manufacturer, you may find this to be expensive.
The good news is there is a solid solution to this problem. Let the best lost wax companies do the job for you. They have adequate skilled persons who can do the job.
What’s the Difference Between Investment Casting and Sand Casting?
There has always been a confusion between these two casting methods; lost wax casting vs. sand casting. What is the difference between them and which one should I use?
The first difference is based on their methods of operation. For the sand casting, molten metal is poured into a mold that has been created by compacting sand.
From the definition, we can see that the difference between these two methods in terms of complexity.
The investment casting method is more complex than the sand casting method. This automatically means that it is more expensive than the sand casting method.
Another difference is the nature of the parts that can be processed. Investment casting allows the processing of complex parts that cannot be processed through sand casting. The parts for sand casting are relatively larger metal parts.
Lost Wax Casting Services In China-Roche Industry
Are you a designer, jeweler, or manufacturer and you need lost wax casting service for our product? Let Roche Industry handle this essential yet delicate task for you. We are one of the reputable lost casting companies in China that you can fully trust.
We give our clients specialized metal lost wax casting services. By this, we mean that we customize the services to meet your specific industrial needs fully.
We have a barrage of high-tech equipment that can do any complex casting effectively. This is backed up by a pool of lost wax casting experts who are fully dedicated to meeting the needs of the clients.
We are always ready to do the job, regardless of the size of the project. Simply contact us for the premium lost wax casting services in China.