PIM Process

Metal Injection Molding (MIM) and Ceramic Injection Molding (CIM) are advanced manufacturing processes used to produce complex, high-precision components from metal or ceramic powders. Both methods are subsets of Powder Injection Molding (PIM), combining the versatility of plastic injection molding with the material properties of metals or ceramics. Metal Injection Molding (MIM) MIM involves mixing fine metal powders (typically 20 µm) with a thermoplastic binder to form a feedstock. This feedstock is injected into a mold cavity using standard injection molding equipment. After molding, the binder is removed (debinding), and the part is sintered at high temperatures in a controlled atmosphere to densify the metal and achieve near full density (95%). MIM is ideal for producing small, intricate parts with excellent mechanical properties, and it is commonly used in the medical, automotive, and consumer electronics industries. Ceramic Injection Molding (CIM) CIM follows a similar process as MIM but uses ceramic powders (e.g., alumina, zirconia) instead of metals. The ceramic-binder feedstock is molded, debound, and sintered at high temperatures to achieve high-density, high-performance ceramic parts. CIM enables the mass production of complex ceramic components with excellent hardness, wear resistance, and thermal stability, commonly used in biomedical, electronics, and aerospace applications.