Metal injection molds are a production method in which metal materials are shaped by injecting them into a mold under temperature and pressure. This method is widely used in the mass production of complex and sensitive metal parts used in various industries. Metal injection molds are preferred in industries where precise measurements and high quality standards are needed.
Metal injection molds have a similar working principle as plastic injection molds. However, instead of thermoplastic materials used in plastic injection, metals and alloys with high melting temperatures are used in metal injection. Metal injection process is a production method consisting of a combination of powder metallurgy and thermoplastic injection technologies. With this method, complex shaped, high density and high performance metal parts are produced. Metal injection machines are the machines that perform this process. There are basically two types of metal injection machines:
Cold Chamber Metal Injection Molding Machine: This type of machine is generally used for casting metals with low melting points such as aluminum and brass.
Hot Chamber Metal Injection Molding Machine: These machines are preferred for casting metals and alloys with relatively low melting points such as zamak. Hot chamber machines have the ability to work more quickly than cold chamber machines.
Injection method is a manufacturing method that has been used in shaping plastic materials for years. With the metal injection process, metal powders are added to thermoplastic materials and plastic-connected metal materials with metallic connections are produced. As a result of the decomposition of the plastic binder, it is sintered and converted into a metal part. The metal injection process can be applied from small parts (under 100 grams) to larger parts and offers better mechanical properties than plastic injection and zinc die casting methods. It also provides a more economical production opportunity compared to metal processing and precision casting methods. Metal injection process is used in many industries such as automotive systems, medical and dental devices, orthodontics, weapons, hardware and key components, computer and electronic applications. It is preferred because of its high precision and excellent mechanical properties.