If you are struggling with
Machining complex stainless steel or ceramic geometries
Skyrocketing machining costs and prolonged lead times eroding competitiveness. Demanding salt spray corrosion environments.
Balancing stainless steel hardness and corrosion resistance.
Achieving non-magnetic properties post-hardening.
Choose Fortune
Pioneering expertise in MIM and stainless steel surface hardening technologies.
Turning challenges into tailored solutions.
Metal Injection Molding (MIM)
Process Overview
★ Integration of plastic injection molding and powder metallurgy
★ Near-net-shape forming technology
★ Process flow: Metal/ceramic powder + binder mixing → mold injection → debinding → sintering → final product.
Technical Advantages
★ High precision | Uniform microstructure | Superior performance | Cost efficiency
★ Unmatched capability for complex geometries
★ "Hailed as “the most sought-after component forming technology today” and “the 21st-century molding revolution”.
Applications
"Spanning automotive, electronics, medical, defense, and more — redefining precision manufacturing standards.
Defense
Electronics
Medical Devices
Watchmaking
Defense
MIM Process Flow
A rigorous, science-driven quality management system ensures excellence at every stage:
Compare MIM to Other Production Methods
|
MIM |
Machining |
Investment Casting |
Powdered Metal |
|
|
Density |
98% |
100% |
98% |
88% |
|
Elongation |
Hight |
Hight |
Hight |
Low |
|
Tensile Strength |
Hight |
Hight |
Hight |
Low |
|
Complex Small Part Processing Cost |
Relatively Low |
Hight |
Higher |
N/A |
|
Surface Finish |
Hight Ra0.4 |
Hight |
Medium |
Medium |
|
Production Volume |
Hight |
Low |
Medium |
Hight |
|
Machinable Size Range |
Only applicable to small parts |
Wide |
Medium-large Parts |
Wide |
|
Tooling Cost |
Hight |
None |
Higher |
Moderate |
Comparison Between PIM and Machining Processes
Machining | PIM | |
Material Utilization | Relatively Low | >=90% |
Production Efficiency | Medium (50 pcs/hr) | High Efficiency |
Environmental Impact | Coolant emissions: High | Near-zero emissions |
Product Consistency | High | Excellent |
Complex Geometry Capability | Time-consuming & Challenging | More Feasible |
Precision Part Cost | High | Cost-effective |
Tooling Investment | Low | Relatively High |
Dimensional Tolerance | High | Relatively High |
Part Size Range | Broad | Moderate |
Material Applications
Stainless Steel 316L
A precipitation-hardened stainless steel offering high strength, fatigue resistance, and superior corrosion endurance.
Zirconia Ceramic
High hardness, thermal stability, exceptional wear resistance, and chemical inertness.
17-4PH Stainless Steel
A precipitation-hardened stainless steel offering high strength, fatigue resistance, and superior corrosion endurance.
TC4 Titanium Alloy
Extensively used in aerospace, marine, and defense industries.
Experimental Conclusion
Experimental Conclusion
Experimental Conclusion
Experimental Conclusion
MIM Product
Representative Products
Before VS. After Adopting MIM
Titanium Alloy TC4 Components
316L Connector Housings
Representative Products
Complex 316L Structural Parts
Stainless Steel Nut-Type Pneumatic Fittings
Stainless Steel Double Ferrule Fittings
MIM Product
MIM Design Guidelines
I. Applicability Assessment:
➤ MIM is the most cost-effective process for manufacturing medium or ultra-large batches of small, complex metal parts.
➤ Ideal for lightweight, compact geometries with features unachievable by conventional machining.
II. Design Parameters:
➤ Length <150mm
➤ Weight <400g
➤ Wall thickness <10mm
MIM's flexible design significantly improves efficiency, enhances part reliability, reduces costs in assembly, procurement, tracking, and inventory management, making it a highly cost-effective process.
When designing MIM components, maintaining uniform wall thickness is the primary objective. If uniformity cannot be achieved, prioritize gradual thickness transitions and strictly avoid abrupt thickness changes.
Knurling, marking, logos, date codes, or other design patterns on components can be incorporated without increasing per-unit costs.
Stainless Steel Hardening Treatment Technology
Technical Advantages
1. Increase surface hardness to 800 to 1300 HV0.05;
2. Maintain original corrosion resistance of 1Cr18Ni9Ti material and components after treatment;
3. Ensure excellent dimensional stability of treated components;
4. Delamination-Free;
5. Retain non-magnetic properties of treated austenitic materials;
6. Provide resistance against fretting wear and galling;
7. Withstand high-intensity wear environments including sliding motions;
Applications
1. Meet anti-galling and wear resistance requirements for industrial liquid pumps and accessories;
2. Enhance corrosion resistance, anti-galling, wear durability, and easy-disassembly fasteners;
3. Corrosion-resistant, wear-resistant, and extended-service-life components for automotive industry;
4. Medical instruments with high wear resistance, fatigue strength resistance, and rigid/sharp edge retention;
5. Marine-grade components and fasteners with corrosion resistance, wear resistance, and scratch resistance;
6. Modern stainless steel consumer products requiring surface hardness, scratch resistance, and wear durability.
Application Examples of Stainless Steel Surface Hardening Technology
Treated components achieve surface hardness from 340HV to over 880HV with case depth >15μm, significantly enhancing wear resistance and durability. Simultaneously, the treated materials retain original dimensions, color, surface finish, and mechanical properties without any alteration.
Surface Hardness Comparison of 304 Stainless Steel Pre- vs. Post-Treatment
Metallographic Structure of Surface-Hardened Layer Post-Treatment
MIM Core Advantages
Material
High Material Utilization Rate
Efficiency
High Production Efficiency
Forming
High Forming Freedom & Precision
Cost
Low Manufacturing Cost
+86 0379-65112777(R&D Department)
No. 26 Binhe Road North Road, High tech Development Zone, Luoyang Area, China (Henan) Pilot Free Trade Zone
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