Reciprocating cutting blade having laser-hardened cutting edges and a method for making the same with a laser
US6857255B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 15, 2003 |
| Grant date | Feb 22, 2005 |
| Priority date | — |
| Expiry date | May 15, 2023 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC21D2221/02
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A reciprocating cutting blade includes a body portion having an top surface, a bottom surface, a longitudinal axis, a first working portion extending at an angle to the longitudinal axis and defining a first cutting surface, a second working portion extending at an angle to the longitudinal axis and defining a second cutting surface. A laser-hardened region extends along at least part of one of the first and second working portions, and preferably along at least part of both of the first and second working portions. The working portions can be serrated to include alternating teeth and roots. The teeth can be laser hardened more than the roots.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.