Title:
DRILL INSERT WITH CONTROLLED CONTACT CLEARANCE
Document Type and Number:
WIPO Patent Application WO2004085101
Kind Code:
A3
Abstract:
A cutting tool insert having a controlled contact clearance behind the cutting edge which limits flank wear and allows more coolant near the cutting edge further allowing an increase in surface speed, feed rates, and tool life. The controlled contact clearance surface provides a first wear zone and a second wear zone, the first wear zone generated during operation of the drill insert allows the flank wear distance to grow from zero to the distance from the cutting edge to the controlled contact clearance surface, the second wear zone keeps the flank wear distance substantially constant until the controlled contact clearance surface is substantially worn away.
Inventors:
KRAEMER ROLF H (US)
Application Number:
PCT/US2004/007548
Publication Date:
April 14, 2005
Filing Date:
March 11, 2004
Export Citation:
Assignee:
ALLIED MACHINE & ENG CORP (US)
KRAEMER ROLF H (US)
KRAEMER ROLF H (US)
International Classes:
B23B51/00; (IPC1-7): B23B51/02
Foreign References:
| US6371702B1 | 2002-04-16 | |||
| US20020139587A1 | 2002-10-03 | |||
| US5137398A | 1992-08-11 |
Other References:
See also references of EP 1610918A4
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