Hot shear cutting of amorphous alloy ribbon
US5005456A · kind A · utility
35Cited by
2References
1Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 29, 1988 |
| Grant date | Apr 9, 1991 |
| Priority date | — |
| Expiry date | Sep 29, 2008 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T83/5733
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.