Invention Grant
- Patent Title: Cutting tap and method of making same
- Patent Title (中): 切割龙头及其制作方法
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Application No.: US12250570Application Date: 2008-10-14
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Publication No.: US08210779B2Publication Date: 2012-07-03
- Inventor: Willard E. Henderer , Stephen M. George , Vladimir D. Volokh
- Applicant: Willard E. Henderer , Stephen M. George , Vladimir D. Volokh
- Applicant Address: US PA Latrobe
- Assignee: Kennametal Inc.
- Current Assignee: Kennametal Inc.
- Current Assignee Address: US PA Latrobe
- Agent Larry R. Meenan
- Main IPC: B23G5/06
- IPC: B23G5/06

Abstract:
A cutting tap includes a body having an axial forward end and an axial rearward end and a central longitudinal axis. The body has a fluted section at the axial forward end. The fluted section includes a chamfered fluted section extending from the axial forward end of the body and terminating at a first full cutting thread. The chamfered fluted section includes a first cutting thread located a first distance from the axial forward end of the body, and a second cutting thread located a second distance from the axial forward end of the body. The second distance is greater than the first distance. The chamfered fluted section is shaped such that a thickness of a section of material removed by the second cutting thread is smaller than a thickness of a section of material removed by the first cutting thread. A method of making the cutting tap is also disclosed.
Public/Granted literature
- US20100092257A1 CUTTING TAP AND METHOD OF MAKING SAME Public/Granted day:2010-04-15
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