JPS642808A - Drill - Google Patents

Drill

Info

Publication number
JPS642808A
JPS642808A JP62319507A JP31950787A JPS642808A JP S642808 A JPS642808 A JP S642808A JP 62319507 A JP62319507 A JP 62319507A JP 31950787 A JP31950787 A JP 31950787A JP S642808 A JPS642808 A JP S642808A
Authority
JP
Japan
Prior art keywords
inside diameter
axis
oil filler
filler port
center
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
JP62319507A
Other languages
Japanese (ja)
Other versions
JPH012808A (en
Inventor
Kojiro Imanaga
Hideji Hosono
Masakatsu Akatsu
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 JP62-319507A priority Critical patent/JPH012808A/en
Priority claimed from JP62-319507A external-priority patent/JPH012808A/en
Publication of JPS642808A publication Critical patent/JPS642808A/en
Publication of JPH012808A publication Critical patent/JPH012808A/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
    • B23B51/06—Drills with lubricating or cooling equipment

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Drilling Tools (AREA)

Abstract

PURPOSE: To enlarge the inside diameter of an oil filler port without deteriorating the rigidity of a bed plate so as to increase the cutting lubricant by making the oil filler port of a consitution formed with its section in an elliptic shape having a longitudinal axis in othogonal direction toward a chip discharging groove from the center of axis.
CONSTITUTION: The oil filler port 32 of a drill 31 is formed with its section in an elliptic shape having a longitudinal axis in an orthogonal direction toward a chip discharging groove 15 from the center of axis P. An inside diameter 'd' in the shorter axis direction is desirably 0.4W0.8D assuming that the space between the chip discharge groove 15 and a bottom surface 18 is D and the inside diameter 'e' in the longitudinal direction is desired to be 1.1 times the inside diameter 'd'. The oil filler port 32 of a desired shape can be provided on the bed plate by performing a roll processing of a bar material formed with a through hole of a circular section in the center along the axis line P. Here, it is desirous to make the inside diameter 'e' in the longitudinal direction less than three times of the inside diameter 'd' in short axis direction so that both ends at the longitudinal direction of the oil filler port 32 will not be crushed when it is subjected to roll processing.
COPYRIGHT: (C)1989,JPO&Japio
JP62-319507A 1987-03-04 1987-12-17 Drill Pending JPH012808A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62-319507A JPH012808A (en) 1987-03-04 1987-12-17 Drill

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP62-49558 1987-03-04
JP4955887 1987-03-04
JP62-319507A JPH012808A (en) 1987-03-04 1987-12-17 Drill

Publications (2)

Publication Number Publication Date
JPS642808A true JPS642808A (en) 1989-01-06
JPH012808A JPH012808A (en) 1989-01-06

Family

ID=

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102554323A (en) * 2012-03-21 2012-07-11 锑玛(苏州)精密工具有限公司 Straight fluted drill
US20130302101A1 (en) * 2010-09-17 2013-11-14 Terry Scanlon Twist drill assembly, components for same and method for making same
WO2018215464A1 (en) * 2017-05-22 2018-11-29 Gkn Aerospace Sweden Ab Cutting tools and method of manufacturing a cutting tool

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130302101A1 (en) * 2010-09-17 2013-11-14 Terry Scanlon Twist drill assembly, components for same and method for making same
US9302332B2 (en) * 2010-09-17 2016-04-05 Element Six Limited Twist drill assembly, components for same and method for making same
CN102554323A (en) * 2012-03-21 2012-07-11 锑玛(苏州)精密工具有限公司 Straight fluted drill
WO2018215464A1 (en) * 2017-05-22 2018-11-29 Gkn Aerospace Sweden Ab Cutting tools and method of manufacturing a cutting tool
CN110650813A (en) * 2017-05-22 2020-01-03 Gkn航空公司 Cutting tool and method of manufacturing a cutting tool
GB2562730B (en) * 2017-05-22 2020-07-01 Gkn Aerospace Sweden Ab Cooled drill
US11173554B2 (en) 2017-05-22 2021-11-16 Gkn Aerospace Sweden Ab Cutting tool
CN110650813B (en) * 2017-05-22 2022-02-11 Gkn航空公司 Cutting tool and method of manufacturing a cutting tool

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