Lamina stack with at least one lamina layer having a plurality o

Details Lamina stack with at least one lamina layer having a plurality o Lamina stack with at least one lamina layer having a plurality o

1997-02-24

1998-05-26

Coan, James F.

Metal working

Method of mechanical manufacture

Electrical device making

29609, 29738, 310217, 336217, H02K 1502

Patent

active

057550239

ABSTRACT:
A laminated stack having a lamina layer comprised of a plurality of discrete lamina segments and which may also have laminas which define a plurality of outer perimeter configurations. The invention provides a method and apparatus for manufacturing such stacks. Lamina layers comprising a plurality of discrete lamina segments are automatically stacked by positioning the uppermost lamina in a choke barrel near the lower die bed surface and engaging the interlock tabs of the discrete lamina segments with the interlock slots of an uppermost lamina layer in the choke barrel prior to the complete separation of the discrete lamina segments from the remaining portion of the strip stock material. Each of the outer perimeter configurations has at least one common choke surface. The common choke surfaces form, when the laminas are stacked, a choke contacting surface on the outer perimeter surface of the lamina stack which extends continuously in the axial direction from the top lamina to the bottom lamina. A die assembly having selectively actuated punches is used to stamp the laminas with a plurality of outer perimeter configurations and the laminas are stacked in a choke barrel with an alignment surface which cooperates with the common choke surface and securely holds the stamped laminas in position while the stack is being formed. Rotation of the choke barrel compensates for strip thickness variations.

REFERENCES:
patent: 2576328 (1951-11-01), Allison
patent: 2671951 (1954-03-01), Sliwiak
patent: 2975312 (1961-03-01), Ploran
patent: 3202851 (1965-08-01), Zimmerle
patent: 3203077 (1965-08-01), Zimmerle
patent: 3512435 (1970-05-01), Bossmann
patent: 3524370 (1970-08-01), Thompson
patent: 3590208 (1971-06-01), Martini et al.
patent: 3738569 (1973-06-01), Killaly, Sr.
patent: 3802068 (1974-04-01), Scott
patent: 3823460 (1974-07-01), Bergmann
patent: 4110895 (1978-09-01), Mitsui
patent: 4160182 (1979-07-01), Mitsui
patent: 4162734 (1979-07-01), Dangelmaier
patent: 4264663 (1981-04-01), Beenken
patent: 4272579 (1981-06-01), Mitsui
patent: 4364169 (1982-12-01), Kawano et al.
patent: 4383356 (1983-05-01), Fichtner
patent: 4445272 (1984-05-01), Bruhn et al.
patent: 4538345 (1985-09-01), Diederichs
patent: 4597168 (1986-07-01), Oboshi et al.
patent: 4619028 (1986-10-01), Neuenschwander
patent: 4728842 (1988-03-01), Martin
patent: 4738020 (1988-04-01), Neuenschwander
patent: 4827237 (1989-05-01), Blackburn
patent: 4900636 (1990-02-01), Takenouchi et al.
patent: 4979285 (1990-12-01), Martin
patent: 5075150 (1991-12-01), Webb et al.
patent: 5087849 (1992-02-01), Neuenschwander
patent: 5123155 (1992-06-01), Neuenschwander
patent: 5338996 (1994-08-01), Yamamoto
patent: 5349740 (1994-09-01), Neuenschwander
patent: 5359763 (1994-11-01), Neuenschwander
patent: 5373622 (1994-12-01), Neuenschwander
patent: 5377115 (1994-12-01), Neuenschwander
patent: 5406243 (1995-04-01), Jenkins et al.
Computer Numerical Control of Production of Rotor and Stator Lamination Segments for Large Electrical Generators and Motors, Arthur Silverton, Metalworking '82, Mar., 1982.

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