Invention Grant
US08052765B2 Contoured PCD and PCBN for twist drill tips and end mills and methods of forming the same
有权
用于麻花钻头和端铣刀的轮廓PCD和PCBN及其形成方法
- Patent Title: Contoured PCD and PCBN for twist drill tips and end mills and methods of forming the same
- Patent Title (中): 用于麻花钻头和端铣刀的轮廓PCD和PCBN及其形成方法
-
Application No.: US11732712Application Date: 2007-04-03
-
Publication No.: US08052765B2Publication Date: 2011-11-08
- Inventor: H. Sam Cho , Lee bong Kyu , Kim yong Il , Han Kyung Ryul , Song Ki Jeon
- Applicant: H. Sam Cho , Lee bong Kyu , Kim yong Il , Han Kyung Ryul , Song Ki Jeon
- Agency: Thorpe North & Western LLP
- Main IPC: B22F7/00
- IPC: B22F7/00 ; B23B51/02

Abstract:
Contoured solid polycrystalline superabrasive material such as twist drill tips and endmill flank segments can be formed by preparing a precursor mold having a plurality of shaped openings each corresponding to a predetermined shape. A specially prepared charge feed can be placed into the shaped openings to form a charged precursor. The charge feed can include a substantially homogeneous mixture of superabrasive source particulates, sintering binder, and optional inorganic bonding medium. A loaded reaction cup-assembly including the charged precursor can be subjected to a pressure, temperature and time sufficient for sintering and formation of the contoured polycrystalline superabrasive material. Reduced finishing steps and increased tailorability of grade and quality of final polycrystalline products can be readily achieved.
Public/Granted literature
- US20080247899A1 Contoured PCD and PCBN for twist drill tips and end mills and methods of forming the same Public/Granted day:2008-10-09
Information query