Precision casting
Here, both investment casting and shell molding are cast depending on the surface requirements for the items. We cast items from 0,1 kg. up to approx. 50 kg. This casting method is also called lost wax or investment casting. In this process, casting can be done very precisely with tolerances down to + / – 0,1 mm. depending on the geometry of the item.
Alloys for precision casting are most often steel alloys.
Read more about lost wax casting
What is precision casting:
Precision casting, also known as precision casting, is a manufacturing method in which small, complex metal objects are produced with a high degree of accuracy and detail. Unlike traditional casting processes, where molds and shapes typically need to be changed and updated after each cycle, precision casting instead uses a crucial step of measurement and adjustment to achieve a high degree of accuracy in the casting result.
There are several methods of precision casting, including mist casting, vacuum casting, and low-pressure casting. All methods have their unique advantages and limitations, but what they have in common is that they require a high degree of accuracy and precision in production to achieve the desired result.
Precision casting is often used in industries that require high accuracy and detail, such as aerospace, medical devices, electronics, and telecommunications.
Precision casting examples
Precision casting advantages and disadvantages
Precision casting, also known as investment casting or lost wax casting, is an advanced casting method used to create intricate and detailed metal parts with high precision. Here are the advantages, disadvantages, and finishes of precision casting:
Advantages of precision casting:
High precision and details:
Precision casting allows the production of complex shapes and detailed components with very high precision, resulting in finished parts with minimal tolerances.
Excellent surface finish:
The cast parts typically have an excellent surface finish, reducing or eliminating the need for post-processing or additional machining.
Material efficiency:
The process enables efficient use of materials, reducing waste and scrap compared to certain other casting methods.
Wide material choices:
Precision casting supports the use of various
types of metals such as steel, aluminum, brass and other alloys, providing flexibility in design and applications.
Repeatability and uniformity:
This casting method enables reproducibility of cast parts with a high degree of uniformity, which is important in mass production.
Disadvantages of precision casting:
Production costs:
Precision casting is usually more expensive compared to some other casting methods due to the advanced technology, materials, and processes involved.
Longer production cycle:
The process of precision casting can take longer than some other casting methods due to the various steps involved, such as making wax patterns and ceramic shells.
The complexity of the process:
Precision casting requires careful control of multiple processes such as wax pattern production, shell making, casting, and finishing, which can make the process more complex.
Surface finish in precision casting:
The surface of precision cast parts is generally of high quality and smoothness. They often have a near-gloss finish with no visible pores or defects, eliminating the need for further machining or finishing. The smooth surface makes these parts suitable for many applications without further processing.
Compared to sand casting, precision casting generally has a better surface finish due to the more advanced techniques and processes used during production.