发明名称 CUTTING TAP AND METHOD OF MAKING SAME
摘要 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.
申请公布号 US2010092257(A1) 申请公布日期 2010.04.15
申请号 US20080250570 申请日期 2008.10.14
申请人 HENDERER WILLARD E;GEORGE STEPHEN M;VOLOKH VLADIMIR D 发明人 HENDERER WILLARD E.;GEORGE STEPHEN M.;VOLOKH VLADIMIR D.
分类号 B23G5/06;B21K5/00;B23P15/52 主分类号 B23G5/06
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