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Metal Injection Moulding for Small, Complex Parts
Metal injection moulding combines the design freedom of injection moulding with the mechanical properties of machined or cast metal.
A metal-powder feedstock is moulded, debound, and sintered to produce small, complex parts with tight tolerances at volume.
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Trusted Manufacturing Partner
Complex Metal Parts at Volume
Metal injection moulding produces small, complex metal components with the design freedom of moulding and the properties of metal.
MIM
Metal Injection Moulding
Mould, debind & sinter process
ISO 9001
Certified Facility
Quality management system certified
Dongguan
Manufacturing Base
Production & QC in Dongguan, China
Net-Shape
Near-Net Parts
Reduced secondary machining
— Metal Injection Moulding —
Complete MIM Manufacturing Solutions
01
MIM Feedstock Selection
Fine metal powder blended with a polymer binder, matched to the target alloy and final mechanical requirements.
Best For: Material-matched powder-binder feedstock
02
MIM Mould Design
Tooling designed for the unique shrinkage and flow behaviour of metal feedstock, accounting for post-sinter densification.
Best For: High-detail metal part tooling
03
Injection Moulding
Feedstock moulded into the 'green part' shape using conventional injection moulding equipment at volume.
Best For: Forming complex shapes at volume
04
Debinding
Controlled removal of the binder system to leave a porous 'brown part' ready for densification.
Best For: Binder removal before sintering
05
Sintering
Thermal densification that removes porosity and develops the final mechanical properties of the metal component.
Best For: Final strength and dimensional stability
06
Secondary Machining & Finishing
Precision machining and surface treatment of sintered parts for critical tolerances and functional finishes.
Best For: Tight tolerances on critical features
Process Stages
The MIM Process
Metal injection moulding follows a defined sequence from feedstock to a fully densified metal component.
| Process Stage | Details |
|---|---|
| Feedstock Preparation | Fine metal powder blended with a polymer binder |
| Injection Moulding | Feedstock moulded into the green part shape |
| Debinding | Binder removed to leave a porous brown part |
| Sintering | Part densified at temperature to final strength |
Materials
MIM Materials
MIM is most commonly used for stainless steel and titanium alloys. Select a material to view its properties and applications.
Metals
Applications
Parts We Commonly Produce
MIM suits small, complex metal parts produced at volume across the industries we serve.
Medical Device Components
Small, complex parts for surgical and diagnostic devices.
Precision Instruments
Tight-tolerance components for instruments and tooling.
Consumer Electronics
Miniature metal parts with complex geometry.
Automotive Small Parts
High-volume metal components for automotive systems.
Industrial Components
Repeatable near-net-shape parts for machinery and equipment.
Production
From Feedstock to Sintered Component
1
Feedstock Preparation
Metal powder and binder are blended to specification.
2
Moulding
Feedstock is injection moulded into the green part shape.
3
Debinding
Binder is removed to leave a porous brown part.
4
Sintering
Part is densified at temperature to final strength.
5
Verification & Finishing
Critical dimensions are verified and surfaces finished to specification.
The objective is a repeatable path from green part to a fully densified, dimensionally stable component.
Quality Assurance
ISO 9001 Quality Management
Certification is only meaningful when it changes how parts are made and verified. Here is what it means for your project.
Documented Quality System
Quoting, processing, and inspection follow documented and audited processes.
Traceable Materials & Reports
Material certifications and First Article Inspection documents accompany each batch.
Consistent Inspection
CMM and optical measurement projectors verify critical dimensions against drawings.
FAQ
Metal Injection Moulding Questions
Answers to the questions we hear most often about MIM at Hong Ying Tooling.
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