Pocketed stud for polycrystalline diamond cutting blanks and method of making same
US4767050A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 24, 1986 |
| Grant date | Aug 30, 1988 |
| Priority date | — |
| Expiry date | Mar 24, 2006 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB24D3/06
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
Disclosed is an improved brazed implement comprising a composite compact having an abrasive particle layer bonded to a support and a substrate bonded to the support by a brazing filler metal having a liquidus substantially above 700.degree. C. disposed therebetween. In a preferred embodiment the composite compact comprises a sectioned cylindrical composite compact having a lower support surface opposite the support surface bonded to said abrasive particle layer. The composite compact also has a mating surface. The substrate about its upper end has a pocket which comprises an interior face complementary in shape with the compact lower support surface and a land complementary in shape with the compact mating surface. The compact is brazed to the substrate. The abrasive particle layer is spaced-apart from contact with the substrate a distance adequate to minimize thermal damage thereto during the brazing of the compact to the substrate. The land is of sufficient depth, however, to provide support for the compact. The preferred composite compact comprises a polycrystalline diamond compact bonded to a cemented carbide support. The preferred substrate is a cemented carbide substrate. The…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.