English 
Investment casting is a casting process that uses wax patterns to shape ceramic casts. It is more than 5,000 years old and is one of the oldest methods of metal casting. Originally, it was used to make statues and jewelry using beeswax.
Investment casting differs from die casting in that it uses a disposable wax mold, while die casting uses a reusable mold. Investment casting is still a casting method used in foundries today.
Investment casting is a high precision metal casting method. The wax molding process produces precise shapes with smooth surfaces. These castings can be used in applications where high precision is required, such as aerospace parts, automotive parts, medical equipment, etc. It can also be used for other applications, but the main advantage is the ability to precisely manufacture thin, small and complex parts.
The investment casting process has multiple steps and is the most labor-intensive casting method. These steps include master molding, wax molding, mold making, wax removal, pouring, stripping, and finishing.
