Magnetics Business & Technology - November/December 2019 - 20

PRODUCT NEWS

Aichi Steel's Magfine Alloy Used in Development of New Drone Motor
Aichi Steel says that it has developed new magnet assembly
technology that uses injection molding resulting in increased
motor output and weight reduction from molding a large bore
multipole magnet into a magnesium housing. The combination of
high magnetic force, positioning freedom and high dimensional
accuracy succeeded in achieving the reduced weight and contribute to longer flight times for drones.
Vibration is reduced also. By optimizing the direction of the
magnetic field during magnet molding, pulsating torque during

Using advanced injection molded magnet assembly and special coil winding technology, Aichi Steel and Sawafuji Electric
have partnered in the development of a new motor for industrial
drones that weighs 30% less than conventional models
.
They have begun supplying the motors to drone manufacturers
and are planning to move into mass production. The motors use
injection-molded bonded magnets made of Aichi Steel's dysprosium-free Magfine material, and aluminum wire windings.
Aluminun windings
rotation, a source of vibration, can be reduced by approximately
20%, realizing stable attitude control by the drone.
The coil winding uses aluminum wire rather than copper, relying
on winding technology with a proven track record in generators
and other products. This allows for a long-lasting, lightweight motor with stable insulation performance, say the partners.

Hybrid drone equipped with new motor
While drones are an anticipated countermeasure against worsening labor shortages in fields such as distribution and farming,
weight reduction remains a pressing issue to support increased
carrying capacity and flight time. The new motor offers some
compelling advantages for improved drone capability, say the
partners. It has been tested in both a full-electric drone (shown at
top) and a hybrid drone.

Future plans call for the companies to leverage their new motor
development efforts in order to expand applications into motors
that require more complex shapes, Steps envisioned include improving the performance of the magnetic powder which is used
as a base material as well as further development of injection
molding and winding technology.
Detailed test results including charts and diagrams are available
at www.aichi-steel.co.jp.

Newly developed magnet assembly with MagFine

20

Magnetics Business & Technology *

November/December 2019

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Magnetics Business & Technology - November/December 2019

Table of Contents for the Digital Edition of Magnetics Business & Technology - November/December 2019

Magnetics Business & Technology - November/Decmber 2019
Contents
Editor’s Choice/ Features
Stromag Designs New Fail-Safe Electromagnetic Brakes for Ships, Harbors and Other Industrial Applications
Solving Eddy Current Non-Destructive Testing Benchmark Problem with Integrated Engineering Software’s Program Faraday
Scientists Print Magnetic Liquid Droplets to Create a Revolutionary New Material at Berkeley National Lab
Research & Development
Product News
Industry News
Marketplace/ Advertising Index
New Survey Technique for Interstellar Magnetic Fields Developed by University of Wisconsin
Visions
Magnetics Business & Technology - November/December 2019 - Magnetics Business & Technology - November/Decmber 2019
Magnetics Business & Technology - November/December 2019 - Cover2
Magnetics Business & Technology - November/December 2019 - Contents
Magnetics Business & Technology - November/December 2019 - Editor’s Choice/ Features
Magnetics Business & Technology - November/December 2019 - 5
Magnetics Business & Technology - November/December 2019 - Stromag Designs New Fail-Safe Electromagnetic Brakes for Ships, Harbors and Other Industrial Applications
Magnetics Business & Technology - November/December 2019 - 7
Magnetics Business & Technology - November/December 2019 - 8
Magnetics Business & Technology - November/December 2019 - 9
Magnetics Business & Technology - November/December 2019 - Solving Eddy Current Non-Destructive Testing Benchmark Problem with Integrated Engineering Software’s Program Faraday
Magnetics Business & Technology - November/December 2019 - 11
Magnetics Business & Technology - November/December 2019 - 12
Magnetics Business & Technology - November/December 2019 - 13
Magnetics Business & Technology - November/December 2019 - 14
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Magnetics Business & Technology - November/December 2019 - 16
Magnetics Business & Technology - November/December 2019 - 17
Magnetics Business & Technology - November/December 2019 - Research & Development
Magnetics Business & Technology - November/December 2019 - 19
Magnetics Business & Technology - November/December 2019 - Product News
Magnetics Business & Technology - November/December 2019 - 21
Magnetics Business & Technology - November/December 2019 - 22
Magnetics Business & Technology - November/December 2019 - 23
Magnetics Business & Technology - November/December 2019 - Industry News
Magnetics Business & Technology - November/December 2019 - 25
Magnetics Business & Technology - November/December 2019 - 26
Magnetics Business & Technology - November/December 2019 - 27
Magnetics Business & Technology - November/December 2019 - Marketplace/ Advertising Index
Magnetics Business & Technology - November/December 2019 - 29
Magnetics Business & Technology - November/December 2019 - Visions
Magnetics Business & Technology - November/December 2019 - Cover3
Magnetics Business & Technology - November/December 2019 - Cover4
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