High-porosity CBN vitrified grinding stone having homogeneous structure
US11458593B2 · kind B2 · utility
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4Claims
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Key dates
| Filing date | Mar 6, 2019 |
| Grant date | Oct 4, 2022 |
| Priority date | — |
| Expiry date | Mar 6, 2039 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB24D18/0009
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
In a high-porosity CBN vitrified grinding stone having a homogeneous structure, a CBN abrasive grain, a large-diameter inorganic hollow filler having an average particle diameter in a range from a grain size one class coarser to a grain size one class finer with respect to a class indicating a grain size of the CBN abrasive grain, and a small-diameter inorganic hollow filler having an average particle diameter of ⅕ to ½ of that of the CBN abrasive grain are bonded by an inorganic bonding agent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.