Apparatus for laminated core manufacture
Method and apparatus for joining plates by stamping pressing and swaging dies Patent #: 4760632
ApplicationNo. 555109 filed on 07/20/1990
US Classes:29/598, Rotor29/522.1, Radially expanding part in cavity, aperture, or hollow body29/609, Laminated29/736, Including deforming means29/738Laminated device
ExaminersPrimary: Hall, Carl E.
Attorney, Agent or Firm
International ClassH02K 015/02
AbstractA method of retaining a series of plates together in a stacked relationship, using integral projections and mating recesses formed by punching dies. As each plate is added to the stack, a restriking die is driven against the exposed face of the newly added plate to form transverse notches in the plate surface. The plate is thus deformed so that material flows into previously formed notches in a subjacent plate. The displaced material acts as a frictional interlock with the subjacent plate.