JPH0199517U - - Google Patents
Info
- Publication number
- JPH0199517U JPH0199517U JP19425587U JP19425587U JPH0199517U JP H0199517 U JPH0199517 U JP H0199517U JP 19425587 U JP19425587 U JP 19425587U JP 19425587 U JP19425587 U JP 19425587U JP H0199517 U JPH0199517 U JP H0199517U
- Authority
- JP
- Japan
- Prior art keywords
- drilling part
- diameter
- rough
- finishing
- drill
- 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
Links
- 238000005553 drilling Methods 0.000 claims description 10
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Drilling Tools (AREA)
Description
第１図〜第３図はこの考案の一実施例に関し、
第１図はドリルの構造図、第２図は荒引き穴あけ
部と仕上げ穴あけ部とのテーパ状境界部の角度を
示す図、第３図ａ及びｂはドリルが被加工物に穴
を加工する時の状態を順番に示す図、第４図は従
来のドリルの構造及びそのドリルによる穴あけ状
態を示す図である。
２０…ドリル、２２…刃部、２４…荒引き穴あ
け部、２６…仕上げ穴あけ部。
Figures 1 to 3 relate to an embodiment of this invention.
Figure 1 is a structural diagram of the drill, Figure 2 is a diagram showing the angle of the tapered boundary between the rough drilling section and the finish drilling section, and Figures 3 a and b are the drill drilling a hole in the workpiece. FIG. 4 is a diagram showing the structure of a conventional drill and the state of drilling with the drill. 20... Drill, 22... Blade section, 24... Rough drilling section, 26... Finish drilling section.
Claims (1)
け部及び仕上げ穴あけ部を備え、仕上げ穴あけ部
の径は荒引き穴あけ部の径より０．３〜０．６mm
大きいことを特徴とするドリル。 The blade part has a rough drilling part and a finishing drilling part in order from the tip in the axial direction, and the diameter of the finishing drilling part is 0.3 to 0.6 mm larger than the diameter of the rough drilling part.
A drill characterized by its large size.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19425587U JPH0199517U (en) | 1987-12-22 | 1987-12-22 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19425587U JPH0199517U (en) | 1987-12-22 | 1987-12-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0199517U true JPH0199517U (en) | 1989-07-04 |
Family
ID=31484995
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19425587U Pending JPH0199517U (en) | 1987-12-22 | 1987-12-22 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0199517U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011049095A1 (en) | 2009-10-21 | 2011-04-28 | 福井県 | Drill for composite material as well as machining method using same and machining apparatus using same |
| JP2014504559A (en) * | 2011-02-02 | 2014-02-24 | マパル ファブリック フュール プラツィジョンズベルクゼウグ ドクトル．クレス カーゲー | Drilling tool and hole making method |
| WO2025177407A1 (en) * | 2024-02-20 | 2025-08-28 | 住友電工ハードメタル株式会社 | Drill and machining method |
-
1987
- 1987-12-22 JP JP19425587U patent/JPH0199517U/ja active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011049095A1 (en) | 2009-10-21 | 2011-04-28 | 福井県 | Drill for composite material as well as machining method using same and machining apparatus using same |
| JP2014504559A (en) * | 2011-02-02 | 2014-02-24 | マパル ファブリック フュール プラツィジョンズベルクゼウグ ドクトル．クレス カーゲー | Drilling tool and hole making method |
| WO2025177407A1 (en) * | 2024-02-20 | 2025-08-28 | 住友電工ハードメタル株式会社 | Drill and machining method |
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