JPS5337990A - Hole making method - Google Patents

Hole making method

Info

Publication number
JPS5337990A
JPS5337990A JP11280276A JP11280276A JPS5337990A JP S5337990 A JPS5337990 A JP S5337990A JP 11280276 A JP11280276 A JP 11280276A JP 11280276 A JP11280276 A JP 11280276A JP S5337990 A JPS5337990 A JP S5337990A
Authority
JP
Japan
Prior art keywords
making method
hole
hole making
burrs
drilled
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
JP11280276A
Other languages
Japanese (ja)
Inventor
Hiroshi Nishimura
Kan Matsumoto
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.)
Showa Denko Materials Co Ltd
Original Assignee
Hitachi Chemical Co Ltd
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 Hitachi Chemical Co Ltd filed Critical Hitachi Chemical Co Ltd
Priority to JP11280276A priority Critical patent/JPS5337990A/en
Publication of JPS5337990A publication Critical patent/JPS5337990A/en
Pending legal-status Critical Current

Links

Landscapes

  • Drilling And Boring (AREA)

Abstract

PURPOSE: To provide a hole making method, in which a hole is drilled while holding a work piece by means of retainer plates, each of which is formed with a hole having a clearance smaller than a predetermined value with respect to the flute body of the drill, whereby occurrence of burrs can be prevented.
COPYRIGHT: (C)1978,JPO&Japio
JP11280276A 1976-09-20 1976-09-20 Hole making method Pending JPS5337990A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11280276A JPS5337990A (en) 1976-09-20 1976-09-20 Hole making method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11280276A JPS5337990A (en) 1976-09-20 1976-09-20 Hole making method

Publications (1)

Publication Number Publication Date
JPS5337990A true JPS5337990A (en) 1978-04-07

Family

ID=14595881

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11280276A Pending JPS5337990A (en) 1976-09-20 1976-09-20 Hole making method

Country Status (1)

Country Link
JP (1) JPS5337990A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS443745Y1 (en) * 1966-09-09 1969-02-12
US3535956A (en) * 1968-04-18 1970-10-27 American Drill Bushing Co Drill jig guide sleeve assembly

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS443745Y1 (en) * 1966-09-09 1969-02-12
US3535956A (en) * 1968-04-18 1970-10-27 American Drill Bushing Co Drill jig guide sleeve assembly

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