Typical manufacturing methods are:
Bonding – using an applied thermosetting adhesive to bond each lamination to the next.
Welding – TIG weld to join each lamination together.
Impregnation – where adhesive resin is drawn into the stack under vacuum.
Mechanical – using tie-rods or similar for mechanical retention of laminations.
Completed Stacks can be assembled onto Armature Shafts with Commutators, or fitted with End Plates or Coil Supports. Copper Damper Bars can also be installed.
The bores and diameters of Rotors and Stators can be finished machined to Customer drawings and supplied direct for winding.
We can advise on suitable production methods for various project volumes, and can supply the initial prototypes as wire cut stacks from raw block material. Then progress with short life stamping tools before final production tooling is required.
Our manufacturing engineers can support you in identifying tolerances and geometries for cost effective manufacture.