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METAL INJECTION MOULDING (MIM)

Metal Injection Moulding (MIM) is an advanced manufacturing process that combines the versatility of plastic injection moulding with the strength and integrity of metals. How it works: 

  1. Feedstock Preparation: Finely powdered metal is mixed with a binder to create a “feedstock.” 
  2. Injection Moulding: The feedstock is shaped into complex geometries using an injection moulding machine. 
  3. De-binding: After moulding, the part undergoes conditioning to remove the binder. 
  4. Sintering: The metal particles are diffusion bonded and densified to achieve the desired strength properties. 


MIM allows the production of small, intricate metal components with outstanding mechanical pro
perties. It is widely used in industries like aerospace, automotive, and medical devices, as well as general engineering. 

MIM allows the production of small, intricate metal components with outstanding mechanical properties. It is widely used in industries like aerospace, automotive, and medical devices, as well as general engineering. 

  1. Aerospace: MIM is used for lightweight, high-strength parts in aircraft and spacecraft, such as brackets, connectors, and sensor housings. 
  2. Automotive: MIM materials find applications in fuel injection nozzles, gears, and sensor components. 
  3. Industrial Equipment: MIM is valuable for creating specialised tools, fasteners, and components used in machinery and industrial processes. 
  4. Electronics: MIM materials contribute to connectors, switches, and other electronic components. 

MIM is designed as a high-volume low cast method of manufacturing. Lower volume and usually not cost effective due to the higher cast of tooling.  

These materials include: 

  1. Stainless Steels: Commonly used in powder metallurgy. 
  2. Superalloys: Known for their high-temperature strength and corrosion resistance. 
  3. Low Alloy Steels: Offering a balance of strength and toughness. 
  4. Controlled Expansion Alloys: Used for applications requiring minimal dimensional changes with temperature variations. 
  5. High-Density Alloys: Ideal for weight-sensitive components. 

Call the team at Trushape UK to discuss you MIMs requirements.