PROCESS FOR ANNEALING OF HELICAL WOUND CORES USED FOR AUTOMOTIVE ALTERNATOR APPLICATIONS

摘要

In a method for manufacturing a helically wound alternator core, stamping an electrical steel strip to create a lamination strip having a back-iron and projecting teeth. The lamination strip is helically wound by bending to form the helically wound alternator core. The core is then welded. Thereafter the helically wound welded alternator core is annealed.

主权项

1. A method for manufacturing a helically wound alternator core, comprising the steps of:
stamping an electrical steel strip to create a lamination strip having a back-iron and projecting teeth; helically winding the lamination strip by applying at least one force to the strip to bend the lamination strip to form the helically wound alternator core, said at least one force causing plastic deformation resulting in internal stress and strain in at least said back-iron of the strip; welding the helically wound alternator core; and thereafter, annealing the welded helically wound alternator core.