Metal 3D Printers - Trial Case StudiesClosed impeller
| Trial case study | Closed impeller |
|---|---|
| Fields of application (examples) |
Aerospace, Medical, Automobile, etc. |
| Devices of application (examples) |
Turbopump impellers for rocket engines Pump impellers for cooling fluid circulation Pump impellers |
| Material of the sample in the photo |
Inconel718 |
| Size of the sample in the photo |
Φ50×H20mm |
| Manufacturing process | Metal 3D printer, Lathe machining, Flow channel polishing |
| Features | A closed impeller has its impeller covered by a shroud to achieve high energy efficiency with smooth fluid feeding. |
| When a closed impeller is made by machining, it requires extra attention to several items such as tools, NC program, type of materials, and others, to achieve high-quality finishing. |
|
| As metal 3D printers can directly produce it from a 3D model, it can achieve cost efficiency and flexibility in designing, with lower height of the impeller exits. |
|
| High-precision tolerance is required to engage casing with a closed impeller which rotates at high speed. We support processings in the critical areas, including labyrinth seals. |
|
| We are experienced in closed impellers as we've gone through trial productions of turbo-pump impellers for rocket engines. We are here to support you from 1 piece trial to mass production. |
Related cases
Metal 3D Printers - Our Services
- We offer one-stop services including the secondary processing such as surface finishing.
- High precision finishing with our precision machining technologies.
- The parts and the products are ready-to-use at arrival.
- We conduct verifications beforehand to reduce the risks of failure, using Simufact Additive, a software solution of MSC for the simulation of the processes.
- Trial pieces are available from 1 piece. Mass production is supported as well.
- About Us
-
Toray Precision is a pioneer in precision micromachining technology.
Since the founding of Toray Precision Co., Ltd. in 1955, we have been contributing to the synthetic fiber industries worldwide, by making spinnerets which is a key technology for synthetic fiber manufacturing.
Our experiences and technologies obtained through our history in the precision micromachining field are widely used in various industries nowadays, including semiconductor, measurement/inspection, aerospace, and medical instruments.


Resin casting mold
Coded mask (Coded Aperture)
Pinhole collimator