发明名称 |
Thread cutting tap and a method of its manufacture |
摘要 |
A thread cutting tap having a threaded portion for cutting out a thread in a wall of a workpiece opening into which the threaded portion is to be introduced. The threaded portion is provided with at least two cutting edges extending in a circumferential direction of the body. Each cutting edge is an integral peripheral part of a flank portion extending substantially radially from the body. The flank portions define between one another a chip removal flute extending in the longitudinal extension of the body for removal of chips. At least one of the flank portions has a side wall divided into a pair of elongated concave surfaces separated by an elongated ridge constituting a chip-breaking member. The chip removal flutes are at least partly helically shaped.
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申请公布号 |
US2006216124(A1) |
申请公布日期 |
2006.09.28 |
申请号 |
US20040476417 |
申请日期 |
2004.04.12 |
申请人 |
OKNESTAM MARKUS;ZIVKOVIC STEFAN |
发明人 |
OKNESTAM MARKUS;ZIVKOVIC STEFAN |
分类号 |
B27G15/00;B23G5/06;B23P15/52 |
主分类号 |
B27G15/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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