Stator laminations are thin, stacked steel sheets forming the stationary magnetic core in electric motors, reducing eddy current losses.
Stator laminations are precision-stamped electrical steel sheets that are stacked and bonded to create the stator core in electric motors and generators. They provide a low-reluctance path for magnetic flux while minimizing energy losses through insulation between layers. The laminations feature precisely shaped slots to accommodate stator windings and maintain consistent air gaps with the rotor.
诱因 → 失效模式 → 工程缓解
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Lamination reduces eddy current losses by breaking up conductive paths. Solid cores would generate significant heat from circulating currents in changing magnetic fields, reducing efficiency by 15-25%.
Non-oriented electrical steel with silicon content (2-3.5%) is standard. Silicon increases electrical resistivity while maintaining magnetic permeability. Coatings provide interlamination insulation.
Manufacturing involves precision blanking/punching of electrical steel coils, deburring, insulation coating application, stacking with interlocking features or bonding, and heat treatment for stress relief.
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