Laminated member, laminated body, and motor
AssigneePanasonic Corporation
InventorsYukio Nishikawa, Hideaki Hamada, Yohei Hattori
Life of this patent
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Abstract
A laminated member as a laminate of a plurality of alloy ribbons is used. The laminated member has a side surface with a fracture surface. A laminated body as a laminate of the laminated member is used. A motor that includes a core using the laminated body is used. A method for manufacturing a laminated member is used that includes: fixing a plurality of amorphous ribbons to one another in a part of layers of the amorphous ribbons after laminating the amorphous ribbons; and punching a laminated member by cutting the laminate of the amorphous ribbons at a location that excludes the portion fixing the amorphous ribbons in the laminate.
Claims16
A laminated member comprising a laminate of a plurality of alloy ribbons, wherein:
- each of the plurality of alloy ribbons has a thickness of 10 μm to 60 μm,
- the laminate member has a side surface with a fracture surface,
- the side surface with the fracture surface includes a shear surface, and
- a percentage of the shear surface in the side surface is 75% or more.
A laminated member comprising a laminate of a plurality of alloy ribbons, wherein:
- each of the plurality of alloy ribbons has a side surface comprising a shear surface, a fracture surface and a burr,
- an area proportion of the shear surface within the side surface decreases from a top one of the plurality of ribbons to a bottom one of the plurality of ribbons,
- an area proportion of the fracture surface increases from the top one of the plurality of ribbons to the bottom one of the plurality of ribbons,
- in a side face of the laminated member, a total area of the shear surface of the plurality of alloy ribbons is 75% or more of a total area of the side face, and
- the plurality of alloy ribbons comprises nanocrystals having a grain size less than a micrometer.
Dependencies are inferred from the claim text.