Die casting is a process that involves melting low melting point metals and injecting them into an already made mold called a die casting mold. A mold or tool comes from steel that is made for a single item using a manufacturing process such as CNC machining. Therefore, sheet metal parts manufactured by die casting have high precision, precision and repeatability.

Die casting process
The History of Die Casting in Manufacturing
Die casting dates back to 1800 and is an important technology in the printing industry. In 1849, Sturges built a manual die-casting machine for printing, making it more accurate, creative and durable in making different complex shapes. Later in 1855, Otto Mergenthaler made the printing press known for its greater efficiency and was an important part of the publishing industry.
Due to the advantages of die casting machines, their demand increased in the 19th century. Therefore, die casting has become popular in many industries. During this period, technology advanced. For example, aluminum replaced tin and lead because of its higher quality. In addition, the original low-pressure injection die-casting process was changed to a high-pressure casting method.


Types of Die Casting Processes
Two die casting processes used in the industry are hot chamber die casting and cold chamber die casting. Each has its own characteristics and is suitable for different scenarios. Here's what you need for both types of procedures.

hot chamber die casting
The hot chamber die casting process is the perfect method for processing low melting point materials such as zinc, tin, lead and magnesium alloys. It is not suitable for alloys with higher melting points as it will damage the pump as it will come into direct contact with the metal. It involves melting metal and injecting it into a mold using pressure from a hydraulic system.

cold chamber die casting
Cold chamber die casting is the perfect method for machining high melting point materials such as aluminum. This process is ideal for metal melting, as the high temperatures required to melt the material can damage the pumping system.
The process involves pouring the molten material into a cold chamber before injecting it into the mold. The hydraulic system used in the cold chamber process is similar to the hydraulic system used in the hot chamber process. However, it may require more pressure from 2000 to 20000 psi.