Invention Grant
- Patent Title: Indexable insert drill and a center insert therefore
- Patent Title (中): 因此可转位刀片和中心刀片
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Application No.: US12010363Application Date: 2008-01-24
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Publication No.: US08192113B2Publication Date: 2012-06-05
- Inventor: Michael Limell , Sören Sjöberg
- Applicant: Michael Limell , Sören Sjöberg
- Applicant Address: SE Sandviken
- Assignee: Sandvik Intellectual Property AB
- Current Assignee: Sandvik Intellectual Property AB
- Current Assignee Address: SE Sandviken
- Agency: Morgan, Lewis & Bockius LLP
- Priority: SE0700237 20070129
- Main IPC: B23B51/02
- IPC: B23B51/02

Abstract:
A drill includes a center insert which is indexable, mounted in a center pocket, and has an elongate basic shape. One of two opposite longitudinal side contact surfaces of the cutting insert which run parallel to each other are urged against the side support surface of the center pocket. The side support surface of the center pocket is inclined in relation to the center axis of the drill body at an acute angle within the range of 3-8 degrees. An intermediate surface is formed between the side contact surface and an end surface. The intermediate surface is shorter than the side contact surface and forms an obtuse angle with the side contact surface.
Public/Granted literature
- US20080181737A1 Indexable insert drill and a center insert therefore Public/Granted day:2008-07-31
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