Aviation Motor Core

Huaci provides motor cores for the aircraft sector,  with high temperature resistance and high reliability, meeting the specific performance demands.

Background

In today’s rapidly evolving defense landscape, the performance of every system hinges on the reliability and efficiency of its core components. Among these, the motor core in defense systems plays a pivotal role in ensuring optimal performance under extreme conditions.

Traditional assembly methods—such as riveting, bolting, and welding—have long been used to construct motor cores in defense and aerospace systems. In these conventional motor core assembly methods in aerospace, manufacturers typically rely on mechanical fasteners or fusion techniques to join thin sheets of electrical steel.

For example, riveting and bolt connections offer simplicity and ease of assembly but can lead to localized stress concentrations. These stress points may result in micro-cracks over time, especially when the motor is exposed to harsh thermal cycles and high vibration levels, conditions common in military applications.

Welding, another prevalent technique, provides a more continuous bond but is not without its pitfalls. During welding, the high temperatures can lead to thermal deformation of the lamination edges, which in turn may cause insulation degradation.

Self-Bonding Lamination Cores

Bonded motor core technology represents a significant evolution in motor core assembly, especially in defense and aerospace applications where reliability and performance are paramount. Instead of relying on mechanical fasteners or traditional welding, bonded cores utilize self-adhesive techniques to secure individual lamination sheets together.

It provides a uniformly strong connection that minimizes localized stress. This approach reduces the formation of air gaps, which are known to contribute to eddy current losses and inefficiencies.

aerospace-self-bonding-motor-core

Performance Highlight

Properties
Data
Bonding Strength
Above 2N/mm2
Excitation Current
Reduce by 8%-12%
Noise
Reduce by 3-6dB
Stacking Factor
Above 0.95
Coating Thickness
2-2.5μm
Geometric Tolerance
Data
Concentricity
0.02mm
Perpendicularity
0.06mm
Circular Runout
0.02mm
Flatness
0.01mm

Product Gallery

Check out our product gallery for aviation applications.

FAQs

How do you do prototyping?

To support your R&D needs, we offer flexible prototyping services:

  • Simply provide us with product drawings or technical requirements, and our technical team will evaluate them and offer tailored recommendations.
  • We’ll conduct small-batch production based on your requirements for product validation or testing.
  • The typical prototyping lead time is 2-4 weeks, depending on the complexity of the product, and this timeline can be adjusted upon discussion.
  • During prototyping, we’ll provide regular progress updates so you’re always informed about the project’s status.
We guarantee product quality through advanced testing equipment and rigorous testing processes. All stators and rotors undergo precise testing to ensure mechanical accuracy, dimensional stability, and magnetic performance, providing reliability and stability in practical applications.
Yes, we’ve established long-term partnerships with leading companies in the industry and earned widespread customer recognition. However, due to our customer privacy policy, we cannot disclose specific client information.
No, we do not support lamination methods such as riveting or welding.
We are equipped with various testing devices to perform dimensional accuracy checks, stress tests, and magnetic performance evaluations. Our comprehensive testing methods ensure every product meets strict quality standards, supporting the success of your project.
Maximize efficiency and reliability in your motors
Partner with us for advanced core manufacturing!