How is metal injection mould manufacturing done?

Metal injection moulding, one of the main industrial production processes, is an important method used in the mass production of complex parts. This process allows metal to be injected into a mould in liquid form to take the desired shape. So, how is metal injection mould manufacturing done? Here is a step-by-step guide:


  1. Design Phase: The 3D design of the part to be manufactured is made using CAD (Computer Aided Design) software. In the design phase, dimensions, tolerances, shape and other features of the part are determined.
  2. Mould Design: In the first step, the mould of the designed part is created. This mould is usually cut from durable materials such as steel or aluminium using CNC (Computer Numerical Control) machines.
  3. Material Selection: The material to be used in metal injection moulds is selected. This material can usually be aluminium, steel or alloy steel. The selected material is determined according to the characteristics of the part, production volume and cost factors.
  4. Mould Manufacturing: The designed mould is cut and shaped with the help of CNC machines. This process requires extremely precise measurements because it is important that the mould has the correct dimensions and tolerances.
  5. Heat Treatment: After mould manufacturing, the mould can be heat treated to increase its durability. This process increases the surface hardness of the mould, making it long-lasting and durable.
  6. Injection Process: During the manufacturing stage, the metal is melted and injected into the mould in liquid form. This process is carried out under high pressure and continues until it takes the desired shape in the mould.
  7. Cooling and Extraction: After the metal has been injected into the mould, it is allowed to cool for some time. Then, the part is removed from the mould and finishing operations are applied as required (e.g. smoothing or drilling holes).

Control and Quality Assurance