公开(公告)号：US20220178210A1

公开(公告)日：2022-06-09

申请号：US17541486

申请日：2021-12-03

申请人： King Dream Public Limited Company ,  Taurex Drill Bits, LLC

发明人： Yongzhong Cai ,  Dongze Yang ,  Yuan Yi ,  Dustin Lyles ,  Terry Vance Morris

IPC分类号： E21B10/52 ,  B23K31/02

摘要： A method of manufacturing a roller cone includes machining a cone blank and thereby defining one or more land surfaces and one or more insert grooves on the cone blank, surface hardening the cone blank, and milling a plurality of recesses into at least one of the one or more land surfaces. The method further includes subjecting the cone blank to a quenching process, forming an insert hole at each recess, and inserting an insert into each insert hole.

公开(公告)号：US12065884B2

公开(公告)日：2024-08-20

申请号：US17541486

申请日：2021-12-03

申请人： King Dream Public Limited Company ,  Taurex Drill Bits, LLC

发明人： Yongzhong Cai ,  Dongze Yang ,  Yuan Yi ,  Dustin Lyles ,  Terry Vance Morris

IPC分类号： E21B10/52 ,  B23K31/02 ,  B23K101/00

CPC分类号： E21B10/52 ,  B23K31/02 ,  B23K2101/002

摘要： A method of manufacturing a roller cone includes machining a cone blank and thereby defining one or more land surfaces and one or more insert grooves on the cone blank, surface hardening the cone blank, and milling a plurality of recesses into at least one of the one or more land surfaces. The method further includes subjecting the cone blank to a quenching process, forming an insert hole at each recess, and inserting an insert into each insert hole.