IPG Photonics Corporation
LASER ASSISTED MACHINING OF ELECTRIC MOTOR CORES

Abstract:

A system and process for fabricating motor laminations from sheet material. Various embodiments of the disclosure combine a separation process with one or both of a cutting and a scoring process that outlines the laminations prior to the separation process. In some embodiments, the separation process is a punching process and is integrated with the stacking of the motor laminations to form the stator core. In addition, a system and process where the cut and/or scored portion of the sheet material is subjected to flattening process prior to the separation process is disclosed. Performing the flattening process prior to the separation process has the effect of streamlining the process, in that the sheet material can be easily handled and conveyed from the scoring process, through the flattening process, and to the separation and stacking process, without need for separate handling of the laminations.