Views: 0 Author: Site Editor Publish Time: 2023-01-23 Origin: Site
The motor housing cannot be perfectly concentric with the stator due to the accuracy of the casting, but during the production of the motor, the inner circle of the motor housing casting is machined so that the inner circle of the casting is concentric with the stator and rotor.
What are the requirements for the selection of aluminum motor housing materials?
What are the characteristics of using 3D printing to produce motor housing?
What are the principles for the selection of housing materials for motor housings?
Aluminum motor housing material selection Standard aluminum motor housing materials require appropriate cast aluminum alloy and heat treatment process to meet the application requirements. The choice of casting process also affects the quality and mechanical properties of the casting. The main considerations when selecting materials are as follows.
1. During operation, the stator is pressed into the inner casing and under load → alloy with high strength and high elongation
2. Dimensional stability in use → appropriate selection of heat-treated casting materials
3. Prevent surface contact corrosion, especially corrosion of the outer sealing surface of the housing → use corrosion-resistant alloys
4. Shielding against electromagnetic fields → Ensure electromagnetic compatibility (EMC) of the materials used
5. Corrosion resistance requirements, which are especially important for seals. If the motor housing is corroded, the motor may fail due to water seepage. AlSiMg alloys (such as AlSi7Mg0.3 or AlSi10Mg) have high corrosion resistance and meet the requirements of mechanical properties. Furthermore, since all aluminum casting alloys are paramagnetic, EMC requirements are easily met.
3D printing can also be used to optimize parts: optimize part topology for durability, high performance, and weight reduction
In addition to being able to quickly manufacture engine parts, using 3D printing to produce motor housings can also improve motor performance through intelligent optimization of the design. "The durability of the components will also be improved, and as a next step in the development of the motor housing, we can also reduce weight through topology optimization, for example, by adjusting the position and height of the external stiffeners. Thanks to 3D printing technology, the electric vehicle industry's The development will be a great opportunity for the foundry.”
It is because the housing of the motor is more complex, in terms of iron material, in fact, welded with iron plate is much better than cast iron performance; but in terms of manufacturing cost, the casting is cheaper and can meet the use requirements. That is why cast iron is used more often.
In fact, with the development of technology (to reduce the manufacturing cost of welded housings), and the improvement of appearance requirements, more and more are now using welding (or fine casting).
Guangdong Fenghua Zhuoli Technology Co., Ltd can provide mass production and rapid prototype with automatic device.Modes of production include die casting, low pressure casting, sand casting, lost-wax casting, centrifugal casting…
