一种先端丝锥及其磨削方法

By optimizing the radial rake angle design and chip groove structure of the cutting edge, the problem of balancing the sharpness and strength of the tap cutting edge was solved, resulting in a longer service life and better cutting performance.

CN120438736BActive Publication Date: 2026-07-17ZHUZHOU CEMENTED CARBIDE CUTTING TOOLS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
ZHUZHOU CEMENTED CARBIDE CUTTING TOOLS CO LTD
Filing Date
2025-04-17
Publication Date
2026-07-17

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Abstract

本发明公开了一种先端丝锥，包括依次连接的柄部、颈部、校正部和切削部，校正部设有第一容屑槽，切削部设有第二容屑槽，第一容屑槽从切削部的外端面延伸至颈部，第二容屑槽从切削部的外端面延伸至校正部、并与第一容屑槽相交，第二容屑槽与切削部的外周面相交形成切削刃，切削刃的径向前角α1沿切削部的外端面向柄部的方向上逐渐减小。还公开了一种先端丝锥的磨削方法，包括以下步骤：磨削第一容屑槽；磨削第二容屑槽；磨削牙型。本发明的先端丝锥具有兼顾刃口锋利度和整体强度，降低刃口崩缺风险，提高使用寿命和切削效果等优点。本发明的先端丝锥的磨削方法用于磨削加工形成先端丝锥。
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