We can use the example of a large segmented stator to illustrate an innovation by LCD LaserCut AG.
The winding slots on the internal diameter of the lamination stack are angled, for electrical reasons. The mechanical guide slots (e.g. swallow tails) on the outer rim of the lamination stack are straight.
Each lamination therefore has a different geometry and is a unique item – a situation that is ideally suited to the flexibility of laser production. LCD Slice Software is used to program the laser, and the lamination stack is produced in one continuous process.
A 3D solid is created for the stator, rotor or segment stack. The length of the iron core is cut into slices (laminations), according to the thickness of the material. The laminations (each with its own independent geometry) are cut by a laser and then layered into a stack shape in the normal way. This lamination stack can be secured by the usual methods, e.g. welding, bonding, screwing, riveting, etc.
- Slice technology is particularly appropriate for the prototype stage of electric motor development.
- The slicing process produces the optimum structure for the motor in one process step.
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