一种球头铣刀

By designing a ball end mill with a helical structure, and using a combination of helical chip removal grooves and ball end mill tolerance grooves to form a multi-row micro-tooth milling cutting edge unit, the problems of high cutting force, severe vibration and heat dissipation of ball end mills in the machining of fiber reinforced composite materials are solved, achieving high-efficiency machining and extended tool life.

CN122400639APending Publication Date: 2026-07-17ZHUZHOU CEMENTED CARBIDE CUTTING TOOLS CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
ZHUZHOU CEMENTED CARBIDE CUTTING TOOLS CO LTD
Filing Date
2026-05-08
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing ball end mills, when machining fiber-reinforced composite materials, suffer from high cutting forces, severe vibrations, and difficulty in heat dissipation, resulting in poor machining quality and accelerated tool wear.

Method used

Design a ball end mill with a helical structure, including a helical chip removal groove and a helical chip tolerance groove. The ball end mill is divided into multiple micro-tooth milling cutting edge units. The helical chip removal groove and the ball end mill are connected to form multiple rows of micro-tooth milling cutting edges. The chip removal groove is connected to the ball end mill, forming an orderly arrangement of micro-tooth milling cutting edge units, which reduces cutting force and facilitates heat dissipation.

Benefits of technology

It effectively reduces cutting load, improves cutting efficiency, reduces vibration, improves machining quality, extends tool life, improves the heat dissipation performance of fiber composite materials, and avoids damage caused by local high temperature.

✦ Generated by Eureka AI based on patent content.

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Abstract

本发明公开了一种球头铣刀,包括刀柄部、圆柱形切削部和球头,圆柱形切削部设有螺旋排屑槽,球头上设有球头宽容屑槽,各球头宽容屑槽和各螺旋排屑槽一一对应连通,相邻球头宽容屑槽之间形成球头刃瓣,球头刃瓣上设有至少一条球头窄容屑槽和多条分屑槽,球头刃瓣的球面与球头宽容屑槽以及分屑槽相交形成球头主微齿刃,球头窄容屑槽的延伸方向与球头宽容屑槽的相同,分屑槽绕中心轴线延伸,球头窄容屑槽和分屑槽相连通将球头刃瓣分隔成多个微齿铣削刃单元,相邻球头刃瓣的微齿铣削刃单元在绕中心轴线的圆周方向上错位布置。本球头铣刀能降低整体切削力,减轻振动,提高加工质量,利于散热和排屑并减缓磨损,可用于纤维复合材料加工。
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