JPS5554111A - Single-edge drill - Google Patents
Single-edge drillInfo
- Publication number
- JPS5554111A JPS5554111A JP12480478A JP12480478A JPS5554111A JP S5554111 A JPS5554111 A JP S5554111A JP 12480478 A JP12480478 A JP 12480478A JP 12480478 A JP12480478 A JP 12480478A JP S5554111 A JPS5554111 A JP S5554111A
- Authority
- JP
- Japan
- Prior art keywords
- face
- edge
- drill
- axis
- rotation
- 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.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B51/00—Tools for drilling machines
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2250/00—Compensating adverse effects during turning, boring or drilling
- B23B2250/12—Cooling and lubrication
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2251/00—Details of tools for drilling machines
- B23B2251/14—Configuration of the cutting part, i.e. the main cutting edges
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Drilling Tools (AREA)
Abstract
PURPOSE:To cut a work piece at high speed with a single-edge drill for a deep hole working and to regrind the tool easily. CONSTITUTION:In a single-edge gun drill, for example, the rake face 21 for the edge 20 is made one face of the V-shaped groove 22 for discharging chips, which is formed along the axis of rotation and has a fixed opening angle centering the axis, and is made approximately perpendicular to the rotary face of drill. Also said rake face 21 is composed of a narrow face 21a which runs from the said axis in the axial direction, another narrow face 21b which makes a fixed angle with the face 21a in the direction opposite to the rotation, and a face 21c which is in the axial direction, that is, the rake face 21 is bent two times and is made convex in the rotary direction A. In this way, the apex point can be extinguished to prevent damage to the edge 20, the length of edge can be made greater to reduce the load per unit length.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12480478A JPS5943245B2 (en) | 1978-10-11 | 1978-10-11 | 1-blade drilling tool |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12480478A JPS5943245B2 (en) | 1978-10-11 | 1978-10-11 | 1-blade drilling tool |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5554111A true JPS5554111A (en) | 1980-04-21 |
JPS5943245B2 JPS5943245B2 (en) | 1984-10-20 |
Family
ID=14894529
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12480478A Expired JPS5943245B2 (en) | 1978-10-11 | 1978-10-11 | 1-blade drilling tool |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5943245B2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5967707A (en) * | 1998-07-29 | 1999-10-19 | Diesel Technology Company | Short-hole drill bit |
US20100135739A1 (en) * | 2007-07-06 | 2010-06-03 | Unitac Incorporated | Gun Drill |
-
1978
- 1978-10-11 JP JP12480478A patent/JPS5943245B2/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5967707A (en) * | 1998-07-29 | 1999-10-19 | Diesel Technology Company | Short-hole drill bit |
US20100135739A1 (en) * | 2007-07-06 | 2010-06-03 | Unitac Incorporated | Gun Drill |
Also Published As
Publication number | Publication date |
---|---|
JPS5943245B2 (en) | 1984-10-20 |
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