发明名称 Annular stack of metallic laminations from an electromagnetic sheet-metal-strip
摘要 <p>The method involves closing an angle between lateral edges of connection channels of sheet metal strips (12) continually when bending the sheet metal strips. The lateral edges are put together from outside to inside without a gap on impact in a direction, where an appropriate connection bridge is increasingly stretched. The radius of circular laminated cores (36) is accurately achieved by a complete form closure of the lateral edges with a recess/projection. Independent claims are also included for the following: (1) a rolling tool for implementing a method for manufacturing a circular laminated core for a rotor and/or a stator of an electrical rotary machine (2) a sheet metal strip for manufacturing a circular laminated core (3) a rotor or a stator manufactured with a sheet metal strip.</p>
申请公布号 EP1775825(A1) 申请公布日期 2007.04.18
申请号 EP20060405401 申请日期 2006.09.21
申请人 LCD LASER CUT AG 发明人 SENN, GEORG
分类号 H02K15/02 主分类号 H02K15/02
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