1. Precision stamping core industry introduction
The precision Stamping Iron Core Bending Part for the EV Relay industry is an important sub-industry of the precision stamping industry. According to the application scenario, precision stamping core products can be divided into motor core and non-motor core. With the continuous expansion of the market size of downstream application fields, the intensification of industry competition, and the increasing complexity of the use of material performance indicators and product functional structure, the industry division of labor is gradually refined. Downstream machine enterprises from the initial development of the design, research and development, production, marketing, and another full chain mode, gradually changed to focus on design, research and development, and marketing, and the production of the main components of the motor outsourced to professional production enterprises to complete. In the motor industry, the Pure Iron Core (including the stator core and the rotor core) is one of the important parts of the motor.
The quality of the Pure Iron Core for EV Relay directly affects the performance of the motor. The material quality, thickness, dimensional accuracy, overlaying coefficient, and cleanliness of the iron core will directly affect the energy conversion efficiency, power,r, and NVH (noise, vibration, and acoustic roughness) and other performance indicators of the motor. The Pure Iron Core for AC Relay not only affects the electrical and mechanical properties of the motor but also is closely related to the manufacturing cost of the motor. Therefore, the iron core is one of the important links of motor manufacturing, and its quality directly determines the performance and quality of the motor.
At present, the commonly used drive motors of new energy vehicles are mainly permanent magnet synchronous motors and AC asynchronous motors, of which most new energy vehicles use permanent magnet synchronous motors, and some vehicles use AC asynchronous motors.
2. Process development of precision stamping core
From the process flow point of view, the process of Stamping the Core for the New Energy Relay has experienced several iterations. Initially, enterprises in the industry generally use the single punching process of slow ordinary presses and single-station composite molds. The production efficiency and material utilization of this process are low. To make more effective use of silicon steel raw materials, improve production efficiency, and reduce product costs, enterprises in the industry have gradually improved the stamping process, using high-speed punching press and high-speed stamping process of single-row multi-station progressive die.
Since then, the high-speed stamping process has been continuously innovated around improving production efficiency, reducing material consumption, and reducing the cost of the post-process. The industry has gradually realized the internal riveting molding of the Iron Core Relay Part die, and the high-speed stamping of the double-row and multi-row multi-station progressive die. In recent years, the dispensing process has gradually developed, and some international enterprises have taken the lead in achieving mass production. The specific realization method is to set the glue point on the stamping progressive die. When the material belt passes through the glue point, the glue is coated on the material belt through the glue supply nozzle, and the Electrician Pure Iron Core punching sheet is fixed together through the glue superposition.

In addition, some companies are also actively studying the material coating process, that is, adding a layer of viscose coating on the surface of the coil, and fixing the Cold Heading Pure Iron Core. The iron core produced by the dispensing and viscose process can significantly reduce the overlap riveting points formed on the punching surface by the folding riveting process, and make the punching surface more flat. This not only reduces eddy current losses after power-on but also reduces heat and noise from the core, thereby significantly improving the overall performance of the motor.
3. Application and importance of relay core
In the field of precision stamping iron cores, Coil Soft Iron Cores are another important application direction. As the core component of the relay, the quality and performance of the relay core directly affect the reliability and service life of the relay. With the rapid development of new energy vehicles and electronic equipment, the demand for relay cores is also increasing. The relay core needs to have high permeability, low coercivity, and good mechanical strength to ensure the stable operation of the relay under high-frequency switching and high current load.
To meet these requirements, the production of relay cores uses advanced stamping technology and material handling processes. Through a high-precision stamping die and a high-speed stamping process, the DT4C Iron Core can achieve high-precision dimensional control and excellent surface quality. In addition, the production process of the relay core is also constantly innovative, such as the use of special coating technology to improve the corrosion resistance and insulation properties of the core.

4. Future development trend
With the continuous growth of the market for new energy vehicles and electronic equipment, the precision stamping Pure Iron Rod for the Relay industry will usher in greater development opportunities. In the future, the industry will continue to develop in the direction of high precision, high performance, high efficiency, and low cost. Enterprises need to continuously invest in research and development and improve the technical level to meet the market demand for high-quality core products. At the same time, with the improvement of environmental protection requirements, green manufacturing, and sustainable development will also become an important development direction of the industry.
In the field of Relay Core Cold Heading, with the wide application of high-voltage relays for new energy vehicles, the performance requirements for relay cores will continue to increase. Companies need to continuously innovate in material selection, process optimization, and quality control to ensure that the relay core can meet the needs of high-end applications such as new energy vehicles.

In short, the precision Stamping Core for the New Energy Relay industry has broad application prospects in new energy vehicles, electronic equipment,t, and other fields, and future development will pay more attention to technological innovation and product quality improvement.
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