JPS56107814A - Straight drill - Google Patents

Straight drill

Info

Publication number
JPS56107814A
JPS56107814A JP967780A JP967780A JPS56107814A JP S56107814 A JPS56107814 A JP S56107814A JP 967780 A JP967780 A JP 967780A JP 967780 A JP967780 A JP 967780A JP S56107814 A JPS56107814 A JP S56107814A
Authority
JP
Japan
Prior art keywords
straight
cutting
grains
drill
cutting edges
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
JP967780A
Other languages
Japanese (ja)
Other versions
JPS6341695B2 (en
Inventor
Takayuki Nishimura
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.)
G N TOOL KK
Original Assignee
G N TOOL KK
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 G N TOOL KK filed Critical G N TOOL KK
Priority to JP967780A priority Critical patent/JPS56107814A/en
Publication of JPS56107814A publication Critical patent/JPS56107814A/en
Publication of JPS6341695B2 publication Critical patent/JPS6341695B2/ja
Granted 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
    • B23B51/009—Stepped drills

Abstract

PURPOSE:To improve the wear resistance of a straight drill, by using a method of electroplating to coat hard abrasive grains such as cubic boron nitride (CBN) grains and diamond grains on a part of the cutting edge of the drill. CONSTITUTION:Two cutting edges 4 are provided on the cutting part 3 of a straight drill 1. Straight cutting edges 6 are also provided on the cutting part 3. Hard abrasive grains 13 such as CBN grains and diamond grains are coated by a method of electroplating on the straight drill at its cutting edges 4, steps 7, 8, the shoulders of the cutting edges 4, small sections of the straight edges 6, the shoulders 9, 10 of the steps 7, 8 and small sections of straight cutting edges 11, 12. These portions to be coated with the abrasive grains are previously recessed. As a result, cutting including finish is effected more accurately, beautifully and efficiently with high resistance to wear.
JP967780A 1980-01-29 1980-01-29 Straight drill Granted JPS56107814A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP967780A JPS56107814A (en) 1980-01-29 1980-01-29 Straight drill

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP967780A JPS56107814A (en) 1980-01-29 1980-01-29 Straight drill

Publications (2)

Publication Number Publication Date
JPS56107814A true JPS56107814A (en) 1981-08-27
JPS6341695B2 JPS6341695B2 (en) 1988-08-18

Family

ID=11726833

Family Applications (1)

Application Number Title Priority Date Filing Date
JP967780A Granted JPS56107814A (en) 1980-01-29 1980-01-29 Straight drill

Country Status (1)

Country Link
JP (1) JPS56107814A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01183308A (en) * 1988-01-18 1989-07-21 Mitsubishi Metal Corp Miniature drill
DE4236824A1 (en) * 1992-04-28 1993-11-04 Fuji Seiko Corp POLISHING DRILL
DE4236823A1 (en) * 1992-07-28 1994-02-03 Fuji Seiko Corp Polishing drill
CN103551634A (en) * 2013-11-05 2014-02-05 无锡雨田精密工具有限公司 Straight-flute drill
CN105750599A (en) * 2016-04-04 2016-07-13 上海大学 Integral compound tool for machining walls and bottoms of stepped holes
CN105750605A (en) * 2016-05-11 2016-07-13 中山市光和精密科技有限公司 Efficient combined cutting tool

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01183308A (en) * 1988-01-18 1989-07-21 Mitsubishi Metal Corp Miniature drill
DE4236824A1 (en) * 1992-04-28 1993-11-04 Fuji Seiko Corp POLISHING DRILL
US5312208A (en) * 1992-04-28 1994-05-17 Fuji Seiko Corporation Burnishing drill
DE4236824C2 (en) * 1992-04-28 1998-02-05 Fuji Seiko Corp Combined drilling and reaming tool
DE4236823A1 (en) * 1992-07-28 1994-02-03 Fuji Seiko Corp Polishing drill
DE4236823B4 (en) * 1992-07-28 2005-06-16 Fuji Seiko Corp., Toyota polishing drills
CN103551634A (en) * 2013-11-05 2014-02-05 无锡雨田精密工具有限公司 Straight-flute drill
CN105750599A (en) * 2016-04-04 2016-07-13 上海大学 Integral compound tool for machining walls and bottoms of stepped holes
CN105750605A (en) * 2016-05-11 2016-07-13 中山市光和精密科技有限公司 Efficient combined cutting tool

Also Published As

Publication number Publication date
JPS6341695B2 (en) 1988-08-18

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