JPS5554112A - Single-edge drill - Google Patents

Single-edge drill

Info

Publication number
JPS5554112A
JPS5554112A JP12480578A JP12480578A JPS5554112A JP S5554112 A JPS5554112 A JP S5554112A JP 12480578 A JP12480578 A JP 12480578A JP 12480578 A JP12480578 A JP 12480578A JP S5554112 A JPS5554112 A JP S5554112A
Authority
JP
Japan
Prior art keywords
face
edge
axis
rake face
fixed
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
Application number
JP12480578A
Other languages
Japanese (ja)
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 JP12480578A priority Critical patent/JPS5554112A/en
Publication of JPS5554112A publication Critical patent/JPS5554112A/en
Pending 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

Abstract

PURPOSE:To cut a work piece at high speed and to regrind the tool by forming the tool such that it has a single-edge and its rake face is made a cylindrical face, which is convex in the rotary direction, of a fixed radius. CONSTITUTION:In a single-edge gun drill, for example, the rake face 21 for the edge 20 is made on 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. Also said rake face 21 is made a cylindrical face, which is convex in the rotary direction A and one end of which is the axis of rotation, of a fixed radius. The end face which forms the edge 20 with the rake face is sloped so that the edge 20 makes the tip angle alpha of a fixed degree, and the relief face 23 is formed here. The oil hole 25 is opened in the notch face 24. In this way, the load per unit length of the edge can be reduced and the feed working can be performed at high speed.
JP12480578A 1978-10-11 1978-10-11 Single-edge drill Pending JPS5554112A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12480578A JPS5554112A (en) 1978-10-11 1978-10-11 Single-edge drill

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12480578A JPS5554112A (en) 1978-10-11 1978-10-11 Single-edge drill

Publications (1)

Publication Number Publication Date
JPS5554112A true JPS5554112A (en) 1980-04-21

Family

ID=14894551

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12480578A Pending JPS5554112A (en) 1978-10-11 1978-10-11 Single-edge drill

Country Status (1)

Country Link
JP (1) JPS5554112A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6017911U (en) * 1983-07-13 1985-02-06 三菱マテリアル株式会社 Drill
JPS60221209A (en) * 1984-04-13 1985-11-05 Nippon Yakin:Kk Drill for cutting deep hole
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 (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6017911U (en) * 1983-07-13 1985-02-06 三菱マテリアル株式会社 Drill
JPS60221209A (en) * 1984-04-13 1985-11-05 Nippon Yakin:Kk Drill for cutting deep hole
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

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