WO2008149465A1 - Tap covered with hard coating, and process for manufacturing the same - Google Patents

Tap covered with hard coating, and process for manufacturing the same Download PDF

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Publication number
WO2008149465A1
WO2008149465A1 PCT/JP2007/061673 JP2007061673W WO2008149465A1 WO 2008149465 A1 WO2008149465 A1 WO 2008149465A1 JP 2007061673 W JP2007061673 W JP 2007061673W WO 2008149465 A1 WO2008149465 A1 WO 2008149465A1
Authority
WO
WIPO (PCT)
Prior art keywords
hard coating
inhibit
tap
covered
entanglement
Prior art date
Application number
PCT/JP2007/061673
Other languages
French (fr)
Japanese (ja)
Inventor
Hiroto Sugano
Hiroaki Sugita
Original Assignee
Osg Corporation
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Osg Corporation filed Critical Osg Corporation
Priority to PCT/JP2007/061673 priority Critical patent/WO2008149465A1/en
Publication of WO2008149465A1 publication Critical patent/WO2008149465A1/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23G—THREAD CUTTING; WORKING OF SCREWS, BOLT HEADS, OR NUTS, IN CONJUNCTION THEREWITH
    • B23G5/00—Thread-cutting tools; Die-heads
    • B23G5/02—Thread-cutting tools; Die-heads without means for adjustment
    • B23G5/06—Taps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23G—THREAD CUTTING; WORKING OF SCREWS, BOLT HEADS, OR NUTS, IN CONJUNCTION THEREWITH
    • B23G2200/00—Details of threading tools
    • B23G2200/26—Coatings of tools

Abstract

[PROBLEMS] With respect to a tap covered with hard coating, to even in tapping machining of mild steel, etc., facilitate curling of chips while inhibiting any fusion adhesion to thereby inhibit any entanglement thereof and to stably realize the abrasion resistance by the hard coating, thereby attaining not only enhancement of tool life duration but also continuous operation of tapping machining. [MEANS FOR SOLVING PROBLEMS] At the portion of twist groove (20) functioning as a rake surface, hard coating (28) is provided on oxide film (26). Accordingly, the hard coating (28) is easily detached to thereby bring about surface exposure of the oxide film (26) to thereby inhibit any fusion adhesion to mild steel, etc. Further, curling of chips is facilitated to thereby inhibit any breakage by entanglement. Moreover, at portions other than twist groove (20) of screw part (16), the hard coating (28) is directly superimposed on the surface of tool base material (24), so that not only is the configuration of interfacial portion with detached hard coating (28), namely, hard coating (28) at cutting edge portion stabilized but also there are attained maintenance of high adhesion and stabilization of coating performance and cutting performance of cutting blade (22).
PCT/JP2007/061673 2007-06-08 2007-06-08 Tap covered with hard coating, and process for manufacturing the same WO2008149465A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/JP2007/061673 WO2008149465A1 (en) 2007-06-08 2007-06-08 Tap covered with hard coating, and process for manufacturing the same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2007/061673 WO2008149465A1 (en) 2007-06-08 2007-06-08 Tap covered with hard coating, and process for manufacturing the same

Publications (1)

Publication Number Publication Date
WO2008149465A1 true WO2008149465A1 (en) 2008-12-11

Family

ID=40093300

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2007/061673 WO2008149465A1 (en) 2007-06-08 2007-06-08 Tap covered with hard coating, and process for manufacturing the same

Country Status (1)

Country Link
WO (1) WO2008149465A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100150677A1 (en) * 2006-01-17 2010-06-17 Hitoshi Yamaguchi Rotary Cutting Tool and Method For Manufacturing Such a Rotary Cutting Tool
CN103909310A (en) * 2014-04-08 2014-07-09 浙江美克工具有限公司 Screw tap

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004230551A (en) * 2003-01-30 2004-08-19 Sandvik Ab Threading tap for cutting thread in blind hole and method for manufacturing the same

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004230551A (en) * 2003-01-30 2004-08-19 Sandvik Ab Threading tap for cutting thread in blind hole and method for manufacturing the same

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100150677A1 (en) * 2006-01-17 2010-06-17 Hitoshi Yamaguchi Rotary Cutting Tool and Method For Manufacturing Such a Rotary Cutting Tool
US8215881B2 (en) * 2006-01-17 2012-07-10 Sakai Threading Tool Co., Ltd. Rotary cutting tool and method for manufacturing such a rotary cutting tool
CN103909310A (en) * 2014-04-08 2014-07-09 浙江美克工具有限公司 Screw tap

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