Process for producing bundles of laminated sheet metal for...

Details Process for producing bundles of laminated sheet metal for... Process for producing bundles of laminated sheet metal for...

2006-04-25

2006-04-25

Kim, Paul D (Department: 3729)

Metal working

Method of mechanical manufacture

Electrical device making

C029S736000, C029S738000, C029S742000, C029S759000, C029S760000, C029S607000, C029S609000, C072S379200, C072S404000

Reexamination Certificate

active

07032293

ABSTRACT:
A process for producing bundles of laminated sheet metal for magnet cores, wherein laminations are punched free along two longitudinal edges of a sheet metal strip, at least two sheet metal laminations of a magnet core are of a different width extending from one longitudinal edge to the other, and several laminations, which rest against each other, are connected with each other to form the bundle. To simplify the tool control, the two longitudinal edges of a lamination are punched in edge cutting stations, which are separate from each other and are arranged offset in the feed direction of the sheet metal strip. The edge cutting stations for cutting the longitudinal edges have a cutting die and an associated bottom die. The cutting die, together with the bottom die, is displaced for creating different laminate widths.

REFERENCES:
patent: 4586236 (1986-05-01), Jones
patent: 4728382 (1988-03-01), Raschbichler
patent: 5771565 (1998-06-01), Walters
patent: 6588093 (2003-07-01), Emmerich et al.
patent: 197 41 364 (1999-04-01), None
patent: 58148419 (1983-09-01), None
“Cast thin amorphous metal for stacked core power transformers”; Lin, K.C.; Zook, E.E.; Electrical Electronics Insulation Conference, 1989. Chicago '89 EEIC/ICWA Exposition., Proceedings of the 19th, Sep. 25-28, 1989; pp.: 154-157.

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