SciTransfer
MultiMag · Project

3D Printed High-Performance Electric Motor Components with Reduced Rare Earth Material Use

manufacturingTestedTRL 5

Imagine printing a motor part like a Lego set, but using different materials in one piece to make it stronger and lighter. Instead of relying on expensive and hard-to-get rare minerals, this method uses smarter designs to get the same power. It also makes it much easier to take the motor apart and recycle the valuable bits when it's worn out.

By the numbers
50%
reduction of magnet mass
20%
reduction in inactive motor components
30%
improvement of overall performance
20%
reduction of rotor manufacturing lead-time
20%
increase in energy efficiency
60%
recyclability rate
The business problem

What needed solving

Electric motor manufacturers rely on expensive, geopolitically risky Rare Earth Elements and face trade-offs between motor weight and performance.

The solution

What was built

A set of design tools and multi-material 3D printing processes to create lightweight, energy-efficient motor rotors and stators.

Audience

Who needs this

EV powertrain engineersIndustrial motor manufacturersAerospace actuator designersRare earth recycling firms
Business applications

Who can put this to work

Automotive
enterprise
Target: EV Drivetrain Manufacturer

If you are an EV manufacturer dealing with high costs and supply risks of rare earth magnets — this project developed multi-material 3D printing that can reduce magnet mass by 50%. This leads to a 20% increase in energy efficiency and lighter vehicles.

Industrial Automation
mid-size
Target: Electric Motor Producer

If you are a motor producer dealing with long production cycles for induction motors — this project developed a manufacturing process that reduces rotor lead-time by 20%. It also allows for a 20% reduction in inactive motor components.

Aerospace
SME
Target: Satellite Component Manufacturer

If you are a space tech company dealing with strict weight limits for rotary actuators — this project developed lightweight, multi-functional structures. This results in a 30% improvement in overall performance for brushless DC motors used in space.

Frequently asked

Quick answers

How does this reduce the cost of raw materials?

The project targets a 50% reduction in the mass of magnets, which typically require expensive Rare Earth Elements (REE).

Can this be scaled to industrial production?

Based on available project data, the project uses multi-material additive manufacturing (MM-AM) and has 10 industrial partners to validate the process.

What are the IP and licensing options for the design tools?

Based on available project data, the project is developing a specific toolbox for multi-physics design, but licensing terms are not specified.

How does this affect the production timeline?

The project aims for a 20% reduction in the manufacturing lead-time for rotors.

How is the integration with existing recycling streams handled?

The project focuses on end-of-life operations to ensure a recyclability rate of over 60% for the materials used.

Consortium

Who built it

The consortium is heavily industry-driven, with 10 industrial partners (71% of the group) and 5 SMEs across 9 countries. This high industrial ratio suggests the project is focused on commercial viability rather than pure academic research, with VTT (Finland) coordinating the technical integration.

How to reach the team

Contact VTT Finland regarding the MM-AM toolbox

Next steps

Talk to the team behind this work.

Request a deep-dive into the multi-material 3D printing specifications

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