Apparatus and method for making a laminated core

Apparatus for deburring a laminated core that includes a stack of laminations, comprising:

• means for electrically connecting said laminated core to an anode of an electrical power supply;
• means for positioning a cathode of said electrical power supply proximate a surface of said laminated core with a gap therebetween, said surface having lamination edges exposed thereon;
• means for moving said surface and said cathode relative to each other comprising a rotatable mandrel on which said core is mounted;
• means for maintaining said gap at a preselected distance;
• and
• means for causing a fluid electrolyte to flow in a continuous stream filling said gap between said cathode and said surface, said fluid electrolyte being a solution of a salt and water.

Apparatus for deburring a laminated core that includes a stack of laminations, comprising:

• means for electrically connecting said laminated core to an anode of an electrical power supply;
• means for positioning a cathode of said electrical power supply proximate a surface of said laminated core with a gap therebetween, said surface having lamination edges exposed thereon;
• means for maintaining said gap at a preselected distance;
• means for causing a fluid electrolyte to flow in a continuous stream filling said gap between said cathode and said surface, said fluid electrolyte being a solution of a salt and water;
• and
• said cathode having a plurality of holes therethrough, each of said holes being generally perpendicular to said surface and in fluid communication with said causing means.