Cutter composed of Ni-Cr alloy
US7740719B2 · kind B2 · utility
1Cited by
13References
1Claims
0Family size
Assignee
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Key dates
| Filing date | May 14, 2003 |
| Grant date | Jun 22, 2010 |
| Priority date | — |
| Expiry date | Jan 16, 2025 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB26D2001/002
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A cutter is composed of a Ni—Cr alloy containing from 32 to 44 mass percent of Cr, from 2.3 to 6.0 mass percent of Al, the balance being Ni, impurities, and additional trace elements and having a Rockwell C hardness of 52 or more. This Ni—Cr alloy provides a cutter produced with a superior workability and by a significantly simplified process, having a low deterioration in the hardness even when heated in use, having excellent corrosion resistance and low-temperature embrittlement resistance, and satisfactorily maintaining the cutting performance for a long time.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.