Title:
METHOD FOR MANUFACTURING A POLYCRYSTALLINE SUPERHARD CUTTER UTILIZING LEACHING PASSAGES
Document Type and Number:
WIPO Patent Application WO/2020/097153
Kind Code:
A3
Abstract:
A method for manufacturing a cutter includes: boring a passage into a polycrystalline superhard cutting head, the passage extending from a front face of the cutting head toward a side thereof; and introducing acid into the passage, thereby removing at least a portion of a metal from the cutting head.
Inventors:
BELLIN FEDERICO (US)
Application Number:
PCT/US2019/059987
Publication Date:
June 18, 2020
Filing Date:
November 06, 2019
Export Citation:
Assignee:
VAREL INT IND LLC (US)
International Classes:
B22F5/00; B22F3/24; C25F3/02; E21B10/56
Domestic Patent References:
| WO2016062618A2 | 2016-04-28 |
Foreign References:
| US20090313908A1 | 2009-12-24 | |||
| US20180313163A1 | 2018-11-01 | |||
| EP3293347A1 | 2018-03-14 | |||
| US10011000B1 | 2018-07-03 |
Attorney, Agent or Firm:
GORSKI, Corinne (US)
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