Apparatus for making a transformer core comprising amorphous met

Details Apparatus for making a transformer core comprising amorphous met Apparatus for making a transformer core comprising amorphous met

1992-09-22

1994-03-08

Hall, Carl E.

Metal working

Plural diverse manufacturing apparatus including means for...

Separate tool stations for selective or successive operation...

295648, 29738, 83636, H01F 4102

Patent

active

052916480

ABSTRACT:
This method of making a transformer core from strips of amorphous metal utilizes an arbor that has a longitudinal axis and an external surface surrounding the axis that includes a portion of concave configuration forming a depression in the external surface. A plurality of packets are assembled, each packet comprising a plurality of groups of amorphous metal strips, the groups in each packet (i) comprising many aligned amorphous metal strips and (ii) having transversely-extending edges that are staggered with respect to each other longitudinally of the packet. The packets are sequentially wrapped about the arbor in superposed relationship while the arbor is held against rotation, thereby building up a core form about the arbor. Each packet prior to its being wrapped about the arbor is located so that when wrapped, opposite ends of each group meet in overlapping relationship in a location angularly aligned with said surface portion of concave configuration.
Also provided is apparatus for carrying out the above core-making operations, as well as other closely related core-making operations.

REFERENCES:
patent: 4413406 (1983-11-01), Bennett et al.

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