发明名称 |
Method and apparatus for fabrication of cobalt alloy composite inserts |
摘要 |
This disclosure features a process of making a two part drill bit insert, namely, a body portion of hard particles such as tungsten carbide particles mixed in an alloy binding the particles. The alloy preferably comprises 6% cobalt with amounts up to about 10% permitted. The body is sintered into a solid member, and also joined to a PDC crown covering the end. The crown is essentially free of cobalt. The process sinters the crown and body while preserving the body and crown cobalt differences.
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申请公布号 |
US6063333(A) |
申请公布日期 |
2000.05.16 |
申请号 |
US19980070952 |
申请日期 |
1998.05.01 |
申请人 |
PENN STATE RESEARCH FOUNDATION;DENNIS TOOL COMPANY |
发明人 |
DENNIS, MAHLON DENTON;AGRAWAL DINESH;RUSTUM ROY;CHENG JIPING;GIGL PAUL |
分类号 |
B22F3/105;B22F7/06;C22C1/05;C23C24/08;C23C26/00;C23C30/00;F27B9/14;F27B9/38;F27B21/00;F27D1/00;F27D1/16;F27D3/04;F27D21/00;F27D99/00;H05B6/78;(IPC1-7):B22F7/06;B22F7/08 |
主分类号 |
B22F3/105 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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