Hot shear cutting of amorphous alloy ribbon

Details Hot shear cutting of amorphous alloy ribbon Hot shear cutting of amorphous alloy ribbon

1988-09-29

1991-04-09

Phan, Hien H.

Cutting

With means to control or modify temperature of apparatus or...

83176, 83382, B23D 1508, B23D 3308, B26D 710

Patent

active

050054562

ABSTRACT:
A method and apparatus for severing a stack of amorphous alloy ribbons in a softened state is disclosed. The method provides a smooth burr-free edge of close dimensional tolerance while preserving the desirable magnetic properties of the alloy. Resistance self-heating is applied to heat a localized portion of the stack to a temperature above the softening temperature of the alloy. Severing occurs adjacent the electrodes in an adjacent stack portion which is heated by diffusion from the directly heated stock portion.

REFERENCES:
patent: 3828639 (1974-08-01), Roch
patent: 4445410 (1984-05-01), Lazar, Jr. et al.

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