Base material for hard sintered body, hard sintered body, and cutting tool
US12420344B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 27, 2020 |
| Grant date | Sep 23, 2025 |
| Priority date | — |
| Expiry date | Oct 2, 2042 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23C2240/08
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A base material for a hard sintered body includes a pillar portion having a central axis and extending in the axial direction of the central axis. The pillar portion has a first outer peripheral portion, a second outer peripheral portion, and a protruding stripe portion. In the cross-sectional view, one side portion of the first outer peripheral portion extending in a circumferential direction or a radial direction is located inside the other side portion. In the cross-sectional view, one side portion of the second outer peripheral portion extending in the circumferential direction or the radial direction is located outside the other side portion in the radial direction. The protruding stripe portion is located in a connection portion between the other side portion of the first outer peripheral portion and one side portion of the second outer peripheral portion, and protrudes outward.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.