Metal Injection Molding (MIM) is an advanced manufacturing technology that combines the benefits of powder metallurgy and plastic injection molding. It is ideal for producing complex, miniature metal components with tight tolerances, excellent surface finishes, and mass production scalability. MIM is widely used in industries including aerospace, medical devices, defense, automotive, consumer electronics, and industrial tools.

Attribute	Specification
Part Size	Typically <100g, minimum ~0.1g
Dimensional Accuracy	±0.3% to ±0.5% of nominal dimensions
Surface Finish	Ra 0.8 – 1.6 μm (as-sintered)
Final Density	≥96%–99% of theoretical
Wall Thickness	From 0.3 mm to ~12 mm
Material Options	316L, 17-4PH stainless steel, low alloy steel, titanium, tungsten alloys, magnetic steels, tool steels
Post-Processing	Heat treating, machining, electroplating, polishing, black oxide, nickel plating

The MIM process involves five critical stages:

1. Feedstock Preparation
   Fine metal powder (≤20 μm) is mixed with polymer binders to create injection-moldable feedstock.

2. Injection Molding
   The feedstock is injected into precision molds using specialized injection machines, producing “green parts.”

3. Debinding
   The binders are removed chemically or thermally, leaving behind “brown parts.”

4. Sintering
   Brown parts are heated in a controlled atmosphere to near full density and metallurgical strength.

5. Post-Processing
   Optional operations include heat treatment, precision machining, or surface finishing based on requirements.

• Design Freedom: Enables production of complex geometries, micro-holes, threads, and undercuts

• Near-Net Shape: Reduces or eliminates secondary machining

• Mass Production Consistency: Suitable for large-volume runs

• Material Versatility: Wide selection of high-performance alloys

• Cost-Effective: Particularly for small, intricate metal parts in medium to high volumes

We implement robust QC protocols to guarantee consistent performance and compliance:

• Dimensional Inspection: CMM, optical comparators, 3D scanners

• Material Verification: XRF analysis, density testing

• Microstructure Control: Metallography, SEM analysis

• Mechanical Testing: Hardness, tensile, fatigue tests

• Surface Evaluation: Ra, coating thickness, porosity

• Documentation: Complete process traceability reports available

Certified to ISO 9001, AS9100, and ISO 13485 for medical parts.

• Aerospace/Defense: Lightweight latches, structural connectors, mechanical couplings

• Medical Devices: Dental tips, surgical components, implant subassemblies

• Consumer Electronics: Housings, fasteners, functional aesthetic parts

• Automotive: Fuel injectors, micro gears, engine control components

• Tools/Industry: Gears, inserts, tool holders, mechanical adjusters

• In-house dedicated MIM molding and sintering lines

• Expert mold design & DFM support for faster development

• Integrated CNC and 3D printing for mold & prototype flexibility

• One-stop solution from design to finished product

• Proven capability in micro-scale and highly complex components