Business
Metal Injection Molding ”METAMOLD™”
Metal Injection Molding (MIM) is a manufacturing technology that enables
mass production of metal parts with complex geometries.
It is commonly referred to as Metal Injection Molding (MIM).
It is a manufacturing method for metal parts belonging to the category of powder metallurgy.
This manufacturing method combines characteristics of both injection molding and powder metallurgy.
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METAMOLD is a registered trademark for MIM products manufactured by the NPR-Riken Group.
Topics
NPR-Riken Official YouTube Channel
Industrial Equipment Sector
Ball Screw
We manufacture “circulation components,” which are key parts of ball screws.
We can accommodate various circulation system types.
- return piece
- return tube type (split)
- end deflector type (split)
- return piece (split)
- end cap type
- return plate type
Other applications
We manufacture components that incorporate necessary functions within limited spaces by leveraging the high degree of shape freedom characteristic of the MIM process.
■Examples of Applications
- Examples of Applications
- Positioning Unit
- Conveying Unit
- Fluid Unit
- Tuning Unit
- Digital Data Unit
- Measurement and Inspection Unit
- Power and Drive System Unit
etc.
Difficult-to-machine materials
Fields of MIM Process Application
・The MIM process enables the handling of high-melting-point materials.
We offer not only standard steel and stainless steel products, but also a comprehensive lineup of specialty materials and difficult-to-machine materials.
MIM enables the production of materials that are difficult to manufacture using other methods, such as soft magnetic materials, titanium alloys, and low thermal expansion materials.
・In the titanium category, we can manufacture not only pure titanium but also Ti-64 material that meets ASTM standards for medical applications and is suitable for implantable devices.
・By selecting the MIM process, complex shapes can be formed even with difficult-to-machine materials, enabling optimization of machining allowances and reduction of machining requirements.
It can also be applied to various fields.
Fields of MIM Process Application
Precision Equipment Sector
(Musical Instruments)
Improved microstructure and design aesthetics / Metal 3D printer
Improved microstructure and design aesthetics
■Enhanced design appeal through embossed transfer printing
This technology transfers patterns etched or laser-engraved onto molds onto the molded parts.
We applied this technology to molds used in our MIM process to transfer patterns onto the molded parts.
These patterns and textures can be selected from over 100 available samples, or custom patterns can be created based on a provided model.
Patterns difficult to achieve through metal processing can be easily realized through transfer molding using molds.
Metal 3D Printer
■Recommended for people like this:
・Want to make metal parts for now. Need metal prototypes.
・In the design review phase and want to evaluate functionality with various shapes.
・Want to make metal parts as mockup samples.
・MIM molds are expensive, and for initial small quantities, want to make parts with a 3D printer for now.
・Have multiple candidate shapes but want to evaluate them all as metal parts.
・Want to make one-off items or extremely small quantities of prototypes.
■Prototype Specifications
Material |
SUS316、SUS630、Titanium Alloy |
|---|---|
Size Guide |
SUS316:Within 45x45x120mm |
Dimensional Accuracy |
15mm or more:±2% |
Surface Roughness |
Ra 3-15μm |
Prototype Lead Time |
About 4 weeks, provided the delivery location is within Japan. |
MIM Special Page
Others
・Mass production track record
・Mass production materials, development materials
・Guidelines for compatible dimensions and weights
…etc. For details, visit the MIM special website.
MIM Special Page
click here





