JPS5558907A - Stepped cutting tool - Google Patents

Stepped cutting tool

Info

Publication number
JPS5558907A
JPS5558907A JP12970578A JP12970578A JPS5558907A JP S5558907 A JPS5558907 A JP S5558907A JP 12970578 A JP12970578 A JP 12970578A JP 12970578 A JP12970578 A JP 12970578A JP S5558907 A JPS5558907 A JP S5558907A
Authority
JP
Japan
Prior art keywords
cutting
edge
cutting tool
groove
tool
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
JP12970578A
Other languages
Japanese (ja)
Inventor
Takayuki Nishimura
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
G N TOOL KK
Original Assignee
G N TOOL KK
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 G N TOOL KK filed Critical G N TOOL KK
Priority to JP12970578A priority Critical patent/JPS5558907A/en
Publication of JPS5558907A publication Critical patent/JPS5558907A/en
Pending legal-status Critical Current

Links

Landscapes

  • Drilling Tools (AREA)

Abstract

PURPOSE: To improve the machining accuracy of a cutting tool which is used for simultaneous machining, drilling and chamfering of a stepped hole.
CONSTITUTION: A large diameter cutting edge 2 extends from a shank 1 and a smaller diameter edge 4 further extends from the edge 2 to the tip 3. Accordingly a step 5 is formed between both edges 2, 4 with different diameters, and a groove 6 of large diameter is communicated with a groove 7 of smaller diameter. This tool is easily manufactured by continuously changing the radial turn and feed from the point of step 5. The twisting angles of cutting edges 2, 4 are optimized by making their leads L1, L2 different from each other to greatly improve the cutting accuracy.
COPYRIGHT: (C)1980,JPO&Japio
JP12970578A 1978-10-20 1978-10-20 Stepped cutting tool Pending JPS5558907A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12970578A JPS5558907A (en) 1978-10-20 1978-10-20 Stepped cutting tool

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12970578A JPS5558907A (en) 1978-10-20 1978-10-20 Stepped cutting tool

Publications (1)

Publication Number Publication Date
JPS5558907A true JPS5558907A (en) 1980-05-02

Family

ID=15016155

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12970578A Pending JPS5558907A (en) 1978-10-20 1978-10-20 Stepped cutting tool

Country Status (1)

Country Link
JP (1) JPS5558907A (en)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20030019027A (en) * 2001-08-30 2003-03-06 (주)상우정공 Drill provided with chip removing flute
JP2009184043A (en) * 2008-02-05 2009-08-20 Tungaloy Corp Stepped twist drill and method of manufacturing the same
JP2009184044A (en) * 2008-02-05 2009-08-20 Tungaloy Corp Stepped twist drill and method of manufacturing the same
JP2009202302A (en) * 2008-02-28 2009-09-10 Yamawa Seisakusho:Kk Center hole drill
US20120288337A1 (en) * 2011-05-11 2012-11-15 Karthik Sampath Rotary cutting tool having pcd cutting tip
US20140363249A1 (en) * 2011-12-27 2014-12-11 Sumitomo Electric Industries, Ltd. Drill
JP2016068195A (en) * 2014-09-30 2016-05-09 富士重工業株式会社 Drill, and method of manufacturing cut product
US9718136B2 (en) * 2014-11-07 2017-08-01 Drebo Werkzeugfabrik Gmbh Drill
CN107498095A (en) * 2017-09-20 2017-12-22 江苏天工工具有限公司 A kind of left-handed three swords milling is bored
CN107511512A (en) * 2017-09-20 2017-12-26 江苏天工工具有限公司 A kind of right rotation three-wing bit
US10821526B2 (en) * 2016-11-15 2020-11-03 Kyocera Corporation Rotary tool and method for manufacturing machined product
CN113547154A (en) * 2021-08-19 2021-10-26 辽宁工程技术大学 Combined tool with cooling function for machining stepped holes

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4959369A (en) * 1972-10-09 1974-06-08
JPS5124628U (en) * 1974-08-10 1976-02-23

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4959369A (en) * 1972-10-09 1974-06-08
JPS5124628U (en) * 1974-08-10 1976-02-23

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20030019027A (en) * 2001-08-30 2003-03-06 (주)상우정공 Drill provided with chip removing flute
JP2009184043A (en) * 2008-02-05 2009-08-20 Tungaloy Corp Stepped twist drill and method of manufacturing the same
JP2009184044A (en) * 2008-02-05 2009-08-20 Tungaloy Corp Stepped twist drill and method of manufacturing the same
JP2009202302A (en) * 2008-02-28 2009-09-10 Yamawa Seisakusho:Kk Center hole drill
US20120288337A1 (en) * 2011-05-11 2012-11-15 Karthik Sampath Rotary cutting tool having pcd cutting tip
US8882412B2 (en) * 2011-05-11 2014-11-11 Kennametal Inc. Rotary cutting tool having PCD cutting tip
US20140363249A1 (en) * 2011-12-27 2014-12-11 Sumitomo Electric Industries, Ltd. Drill
JPWO2013099841A1 (en) * 2011-12-27 2015-05-07 住友電気工業株式会社 drill
US9308589B2 (en) * 2011-12-27 2016-04-12 Sumitomo Electric Industries, Ltd. Drill
JP2016068195A (en) * 2014-09-30 2016-05-09 富士重工業株式会社 Drill, and method of manufacturing cut product
US9718136B2 (en) * 2014-11-07 2017-08-01 Drebo Werkzeugfabrik Gmbh Drill
US10821526B2 (en) * 2016-11-15 2020-11-03 Kyocera Corporation Rotary tool and method for manufacturing machined product
CN107498095A (en) * 2017-09-20 2017-12-22 江苏天工工具有限公司 A kind of left-handed three swords milling is bored
CN107511512A (en) * 2017-09-20 2017-12-26 江苏天工工具有限公司 A kind of right rotation three-wing bit
CN113547154A (en) * 2021-08-19 2021-10-26 辽宁工程技术大学 Combined tool with cooling function for machining stepped holes

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