JPS5554111A - Single-edge drill - Google Patents

Single-edge drill

Info

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
Application number
JP12480478A
Other languages
Japanese (ja)
Other versions
JPS5943245B2 (en
Inventor
Susumu Nogami
Hideo Negishi
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.)
Mitsubishi Metal Corp
Original Assignee
Mitsubishi Metal Corp
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 Mitsubishi Metal Corp filed Critical Mitsubishi Metal Corp
Priority to JP12480478A priority Critical patent/JPS5943245B2/en
Publication of JPS5554111A publication Critical patent/JPS5554111A/en
Publication of JPS5943245B2 publication Critical patent/JPS5943245B2/en
Expired legal-status Critical Current

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.
JP12480478A 1978-10-11 1978-10-11 1-blade drilling tool Expired JPS5943245B2 (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (2)

* Cited by examiner, † Cited by third party
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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