JP2009190116A - 穴明け工具 - Google Patents
穴明け工具 Download PDFInfo
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- JP2009190116A JP2009190116A JP2008032701A JP2008032701A JP2009190116A JP 2009190116 A JP2009190116 A JP 2009190116A JP 2008032701 A JP2008032701 A JP 2008032701A JP 2008032701 A JP2008032701 A JP 2008032701A JP 2009190116 A JP2009190116 A JP 2009190116A
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- Prior art keywords
- groove
- tool
- chip discharge
- tip
- drilling tool
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- 238000005553 drilling Methods 0.000 title claims abstract description 47
- 238000007599 discharging Methods 0.000 abstract description 6
- 150000003071 polychlorinated biphenyls Chemical class 0.000 description 5
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- 230000002349 favourable effect Effects 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
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- 239000011521 glass Substances 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
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Abstract
【解決手段】工具本体1の外周に工具先端から基端側に向かう螺旋状の切り屑排出溝2が一若しくは複数形成された穴明け工具であって、前記切り屑排出溝2に、第一のねじれ角α1を有する第一のねじれ領域3と、この第一のねじれ領域3の工具基端側に連設され前記第一のねじれ角α1より大きい第二のねじれ角α2を有する第二のねじれ領域4とを備える。
【選択図】図4
Description
2 切り屑排出溝
2a 主溝
2b 副溝
3 第一のねじれ領域
4 第二のねじれ領域
5 切れ刃
6 連設部
α1 第一のねじれ角
α2 第二のねじれ角
α3 (副溝2bの)ねじれ角
l (主溝2aの)全長
k (副溝2bの)全長
O 工具回転中心
d 工具直径
Claims (8)
- 工具本体の外周に工具先端から基端側に向かう螺旋状の切り屑排出溝が一若しくは複数形成された穴明け工具であって、前記切り屑排出溝は、第一のねじれ角を有する第一のねじれ領域と、この第一のねじれ領域の工具基端側に連設され前記第一のねじれ角より大きい第二のねじれ角を有する第二のねじれ領域とを備えたことを特徴とする穴明け工具。
- 請求項1記載の穴明け工具において、前記切り屑排出溝が複数設けられ、この複数の切り屑排出溝のうち一の切り屑排出溝のみに工具先端側に切れ刃が設けられ、他の切り屑排出溝の工具先端側には切れ刃が設けられていないことを特徴とする穴明け工具。
- 請求項2記載の穴明け工具において、前記切れ刃を有する切り屑排出溝は、前記第一のねじれ角が35°〜45°に設定され、前記第二のねじれ角が前記第一のねじれ角より5°〜20°大きく設定され、前記第一のねじれ領域と前記第二のねじれ領域との連設部が工具先端から0.2mm〜前記切れ刃を有する切り屑排出溝の全長の1/2の位置に設けられていることを特徴とする穴明け工具。
- 請求項2,3いずれか1項に記載の穴明け工具において、前記切れ刃を有する切り屑排出溝は工具先端から刃部の基端部まで形成される主溝に設定され、前記切れ刃が設けられない1つ若しくは複数の切り屑排出溝が前記主溝より短い副溝に設定され、この副溝のねじれ角は前記主溝の第一のねじれ領域におけるねじれ角と略同じ角度に設定されていることを特徴とする穴明け工具。
- 請求項4記載の穴明け工具において、前記副溝の全長は、工具先端から0.2mm〜主溝の全長の1/2に設定されていることを特徴とする穴明け工具。
- 請求項4,5いずれか1項に記載の穴明け工具において、前記副溝の溝深さは、前記主溝の溝深さと同じか若しくは該主溝の溝深さより浅く設定されていることを特徴とする穴明け工具。
- 請求項4〜6いずれか1項に記載の穴明け工具において、前記主溝と前記副溝とを夫々1つずつ有し、この主溝と副溝は工具先端視において工具回転中心に対して非点対称位置に設けられており、工具先端にチゼルエッジが形成されるように先端逃げ面が形成されていることを特徴とする穴明け工具。
- 請求項1〜7いずれか1項に記載の穴明け工具において、工具直径が0.4mm以下であることを特徴とする穴明け工具。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2008032701A JP4723599B2 (ja) | 2008-02-14 | 2008-02-14 | 穴明け工具 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2008032701A JP4723599B2 (ja) | 2008-02-14 | 2008-02-14 | 穴明け工具 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2009190116A true JP2009190116A (ja) | 2009-08-27 |
JP4723599B2 JP4723599B2 (ja) | 2011-07-13 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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JP2008032701A Active JP4723599B2 (ja) | 2008-02-14 | 2008-02-14 | 穴明け工具 |
Country Status (1)
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JP (1) | JP4723599B2 (ja) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2012511438A (ja) * | 2010-03-22 | 2012-05-24 | 深▲セン▼市金洲精工科技股▲ふん▼有限公司 | 小型ドリル及び小型ドリルの製造方法 |
JP2012110984A (ja) * | 2010-11-22 | 2012-06-14 | Union Tool Co | 穴明け工具 |
JP2012148384A (ja) * | 2011-01-21 | 2012-08-09 | Carbide Internatl Co Ltd | ドリルビット構造 |
US20120288337A1 (en) * | 2011-05-11 | 2012-11-15 | Karthik Sampath | Rotary cutting tool having pcd cutting tip |
US20150209874A1 (en) * | 2013-08-26 | 2015-07-30 | Shenzhen Jinzhou Precision Technology Corp. | Miniature drill |
US20150360302A1 (en) * | 2014-06-12 | 2015-12-17 | Kennametal Inc. | Rotary tool and method for manufacturing a rotary tool |
US20170203374A1 (en) * | 2016-01-14 | 2017-07-20 | Kennametal Inc. | Method for producing a rotary tool and rotary tool |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6239915A (ja) * | 1985-08-16 | 1987-02-20 | Hitachi Ltd | 位相同期型閉ル−プロジツク回路 |
JPH03109645U (ja) * | 1990-02-21 | 1991-11-11 | ||
JP2002144124A (ja) * | 2000-11-14 | 2002-05-21 | Mitsubishi Materials Corp | 小型ドリル |
JP2002205214A (ja) * | 2001-01-10 | 2002-07-23 | Mitsubishi Materials Corp | ドリル |
JP2006150553A (ja) * | 2004-12-01 | 2006-06-15 | Union Tool Co | ドリル |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6239915U (ja) * | 1985-08-28 | 1987-03-10 |
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2008
- 2008-02-14 JP JP2008032701A patent/JP4723599B2/ja active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6239915A (ja) * | 1985-08-16 | 1987-02-20 | Hitachi Ltd | 位相同期型閉ル−プロジツク回路 |
JPH03109645U (ja) * | 1990-02-21 | 1991-11-11 | ||
JP2002144124A (ja) * | 2000-11-14 | 2002-05-21 | Mitsubishi Materials Corp | 小型ドリル |
JP2002205214A (ja) * | 2001-01-10 | 2002-07-23 | Mitsubishi Materials Corp | ドリル |
JP2006150553A (ja) * | 2004-12-01 | 2006-06-15 | Union Tool Co | ドリル |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2012511438A (ja) * | 2010-03-22 | 2012-05-24 | 深▲セン▼市金洲精工科技股▲ふん▼有限公司 | 小型ドリル及び小型ドリルの製造方法 |
JP2012110984A (ja) * | 2010-11-22 | 2012-06-14 | Union Tool Co | 穴明け工具 |
JP2012148384A (ja) * | 2011-01-21 | 2012-08-09 | Carbide Internatl Co Ltd | ドリルビット構造 |
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 |
US20150209874A1 (en) * | 2013-08-26 | 2015-07-30 | Shenzhen Jinzhou Precision Technology Corp. | Miniature drill |
US9421620B2 (en) * | 2013-08-26 | 2016-08-23 | Shenzhen Jinzhou Precision Technology Corp. | Miniature drill |
US20150360302A1 (en) * | 2014-06-12 | 2015-12-17 | Kennametal Inc. | Rotary tool and method for manufacturing a rotary tool |
US9623489B2 (en) * | 2014-06-12 | 2017-04-18 | Kennametal Inc. | Rotary tool and method for manufacturing a rotary tool |
US20170203374A1 (en) * | 2016-01-14 | 2017-07-20 | Kennametal Inc. | Method for producing a rotary tool and rotary tool |
US10335866B2 (en) * | 2016-01-14 | 2019-07-02 | Kennametal Inc. | Method for producing a rotary tool and rotary tool |
Also Published As
Publication number | Publication date |
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JP4723599B2 (ja) | 2011-07-13 |
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