JP2008036759A5 - - Google Patents

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Publication number
JP2008036759A5
JP2008036759A5 JP2006213319A JP2006213319A JP2008036759A5 JP 2008036759 A5 JP2008036759 A5 JP 2008036759A5 JP 2006213319 A JP2006213319 A JP 2006213319A JP 2006213319 A JP2006213319 A JP 2006213319A JP 2008036759 A5 JP2008036759 A5 JP 2008036759A5
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JP
Japan
Prior art keywords
drill
angle
tip
center
maximum diameter
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JP2006213319A
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Japanese (ja)
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JP5087735B2 (en
JP2008036759A (en
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Priority to JP2006213319A priority Critical patent/JP5087735B2/en
Priority claimed from JP2006213319A external-priority patent/JP5087735B2/en
Publication of JP2008036759A publication Critical patent/JP2008036759A/en
Publication of JP2008036759A5 publication Critical patent/JP2008036759A5/ja
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Publication of JP5087735B2 publication Critical patent/JP5087735B2/en
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Claims (15)

  1. 切刃の先端角が中心位置から最大径位置に向けて中心位置先端角A°(但し、0°<A°<180°)から最大径位置先端角0°まで連続した変化により減少し、切刃の逃げ角が中心位置から最大径位置に向けて連続した変化により減少する形状に形成されたドリル。   The cutting edge tip angle decreases from the center position toward the maximum diameter position by a continuous change from the center position tip angle A ° (however, 0 ° <A ° <180 °) to the maximum diameter position tip angle 0 °. A drill with a shape in which the clearance angle of the blade decreases with a continuous change from the center position toward the maximum diameter position.
  2. 前記最大径位置において逃げ角を有することを特徴とする請求項1に記載のドリル。   The drill according to claim 1, wherein the drill has a clearance angle at the maximum diameter position.
  3. 前記切刃の先端が放物線の一部からなる放物線状に形成されていることを特徴とする請求項1又は請求項2に記載のドリル。   The drill according to claim 1 or 2, wherein a tip of the cutting edge is formed in a parabolic shape including a part of a parabola.
  4. 前記切刃の先端が一つの円弧による円弧状に形成されていることを特徴とする請求項1又は請求項2に記載のドリル。   The drill according to claim 1 or 2, wherein a tip of the cutting blade is formed in an arc shape by one arc.
  5. 前記中心位置における逃げ角をδとして、δ>(180−A)/2 の関係が成立する中心位置先端角A及び中心位置逃げ角δを有することを特徴とする請求項1から請求項4のうちいずれか一に記載のドリル。   5. The center position tip angle A and the center position clearance angle δ satisfying the relationship of δ> (180−A) / 2, where δ is a clearance angle at the center position. 6. The drill according to any one of them.
  6. 前記切刃はすくい角を有することを特徴とする請求項1から請求項5のうちいずれか一に記載のドリル。   The said cutting blade has a rake angle, The drill as described in any one of Claims 1-5 characterized by the above-mentioned.
  7. 前記切刃のすくい角がゼロであることを特徴とする請求項1から請求項5のうちいずれか一に記載のドリル。   The drill according to any one of claims 1 to 5, wherein a rake angle of the cutting edge is zero.
  8. 2条のねじれ溝を有し、前記ねじれ溝の間に形成されたランド部の前記ねじれ溝に沿った両縁にマージンを有することを特徴とする請求項1から請求項7のうちいずれか一に記載のドリル。   8. The structure according to claim 1, comprising two twisted grooves, and a margin at both edges along the twisted groove of a land portion formed between the twisted grooves. Drill as described in.
  9. 前記切刃の中心軸に沿った長さが、前記最大径に対して1.6倍以上にされてなることを特徴とする請求項1から請求項8のうちいずれか一に記載のドリル。   The drill according to any one of claims 1 to 8, wherein a length along a central axis of the cutting edge is 1.6 times or more of the maximum diameter.
  10. 切刃の先端角が中心位置から最大径位置に向けて中心位置先端角A°(但し、0°<A°<180°)から最大径位置先端角0°まで連続した変化により減少する形状に形成されたドリル。The tip angle of the cutting edge decreases from the center position toward the maximum diameter position by a continuous change from the center position tip angle A ° (however, 0 ° <A ° <180 °) to the maximum diameter position tip angle 0 °. Formed drill.
  11. 前記切刃の先端が放物線の一部からなる放物線状に形成されていることを特徴とする請求項10に記載のドリル。11. The drill according to claim 10, wherein a tip of the cutting blade is formed in a parabolic shape including a part of a parabola.
  12. 前記切刃の先端が一つの円弧による円弧状に形成されていることを特徴とする請求項10に記載のドリル。The drill according to claim 10, wherein a tip of the cutting blade is formed in an arc shape by one arc.
  13. 前記切刃の中心軸に沿った長さが、前記最大径に対して1.6倍以上にされてなることを特徴とする請求項10に記載のドリル。The length according to the central axis of the said cutting blade is 1.6 times or more with respect to the said largest diameter, The drill of Claim 10 characterized by the above-mentioned.
  14. 切刃の逃げ角が中心位置から最大径位置に向けて連続した変化により減少する形状に形成されたドリル。A drill with a shape in which the flank angle of the cutting blade decreases with a continuous change from the center position toward the maximum diameter position.
  15. 前記最大径位置において逃げ角を有することを特徴とする請求項14に記載のドリル。The drill according to claim 14, wherein the drill has a clearance angle at the maximum diameter position.
JP2006213319A 2006-08-04 2006-08-04 drill Active JP5087735B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2006213319A JP5087735B2 (en) 2006-08-04 2006-08-04 drill

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2006213319A JP5087735B2 (en) 2006-08-04 2006-08-04 drill

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP2012055464A Division JP5087744B2 (en) 2012-03-13 2012-03-13 drill

Publications (3)

Publication Number Publication Date
JP2008036759A JP2008036759A (en) 2008-02-21
JP2008036759A5 true JP2008036759A5 (en) 2009-05-14
JP5087735B2 JP5087735B2 (en) 2012-12-05

Family

ID=39172362

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2006213319A Active JP5087735B2 (en) 2006-08-04 2006-08-04 drill

Country Status (1)

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JP (1) JP5087735B2 (en)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9180531B2 (en) 2008-12-23 2015-11-10 Fuji Jukogyo Kabushiki Kaisha Drill and drilling method for workpiece
JP5341502B2 (en) * 2008-12-26 2013-11-13 富士重工業株式会社 drill
WO2010086988A1 (en) * 2009-01-29 2010-08-05 オーエスジー株式会社 Double angle drill
JP5276486B2 (en) 2009-03-13 2013-08-28 富士重工業株式会社 drill
JP5258677B2 (en) * 2009-06-15 2013-08-07 オーエスジー株式会社 Triple angle drill
JP5593910B2 (en) * 2010-07-20 2014-09-24 株式会社不二越 Drill
JP5444265B2 (en) * 2011-02-03 2014-03-19 富士重工業株式会社 Cutting tools
JP5851802B2 (en) 2011-03-30 2016-02-03 富士重工業株式会社 Drill for carbon fiber reinforced resin composite material
JP5933935B2 (en) 2011-06-17 2016-06-15 マコトロイ工業株式会社 drill
JP6240559B2 (en) * 2014-05-22 2017-11-29 株式会社Subaru Drill and drill manufacturing method
JP6589506B2 (en) * 2014-09-26 2019-10-16 三菱マテリアル株式会社 Drill and drill head
JP2016179543A (en) * 2016-07-22 2016-10-13 富士重工業株式会社 Drill and manufacturing method of drill
EP3486012A4 (en) 2016-12-01 2019-08-28 Mitsubishi Heavy Industries, Ltd. Drill and boring device equipped with same
JP2021024023A (en) 2019-08-02 2021-02-22 株式会社Subaru Drill and method of producing drilled product
JP2021065967A (en) * 2019-10-23 2021-04-30 株式会社ギケン Drill

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6040328B2 (en) * 1981-01-21 1985-09-10 Osg Mfg

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