Invention Grant
- Patent Title: Unequal helix-angle end mill
- Patent Title (中): 不等螺旋角端铣刀
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Application No.: US13821990Application Date: 2011-04-28
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Publication No.: US09346109B2Publication Date: 2016-05-24
- Inventor: Jin Xu , Shuzhang Fang , Shequan Wang , Ping Li
- Applicant: Jin Xu , Shuzhang Fang , Shequan Wang , Ping Li
- Applicant Address: CN Zhuzhou, Hunan
- Assignee: ZHUZHOU CEMENTED CARBIDE CUTTIG TOOLS CO., LTD.
- Current Assignee: ZHUZHOU CEMENTED CARBIDE CUTTIG TOOLS CO., LTD.
- Current Assignee Address: CN Zhuzhou, Hunan
- Agency: David and Raymond Patent Firm
- Agent Raymond Y. Chan
- Priority: CN201010565807 20101130
- International Application: PCT/CN2011/073412 WO 20110428
- International Announcement: WO2012/071847 WO 20120607
- Main IPC: B23C5/10
- IPC: B23C5/10

Abstract:
An unequal helix-angle end mill includes a cutting part and a handle part. The cutting part is provided with a plurality of flutes, each spirally extending from the bottom end to the handle part. The face of each flute facing the cutting rotation direction is a rake face, wherein the rake face and an outer peripheral face of the cutting part are intersected to form an outer peripheral blade, and the helix-angle of at least one of the peripheral blades is different from those of the other peripheral blades. A face joined with the peripheral blade among the outer peripheral face of the cutting part is a rear face. The width B of the edge flap of each peripheral blade is equal on a plane orthogonal to a rotating axis of the end mill. The unequal helix-angle end mill has high strength, and enhances the cutting depth and durability.
Public/Granted literature
- US20130170916A1 Unequal Helix-Angle End Mill Public/Granted day:2013-07-04
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