Hybrid threading tap with reamer portion and thread cutting portion
US11597023B2 · kind B2 · utility
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12References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 22, 2021 |
| Grant date | Mar 7, 2023 |
| Priority date | — |
| Expiry date | Feb 22, 2041 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23P15/52
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A hybrid threading tap includes a reamer portion and a thread cutting portion having a plurality of cutting teeth. The thread cutting portion is arranged with the reamer portion along the longitudinal axis. The reamer portion is configured to be advanced within a hole of a workpiece to plastically deform and expand the hole to an expanded hole and provide the expanded hole with a zone of residual compressive stress. The plurality of cutting teeth is configured to cut a threading into the expanded hole within the zone.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.