KR970020293A - Drilling method - Google Patents

Drilling method Download PDF

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Publication number
KR970020293A
KR970020293A KR1019950035423A KR19950035423A KR970020293A KR 970020293 A KR970020293 A KR 970020293A KR 1019950035423 A KR1019950035423 A KR 1019950035423A KR 19950035423 A KR19950035423 A KR 19950035423A KR 970020293 A KR970020293 A KR 970020293A
Authority
KR
South Korea
Prior art keywords
blade
outer diameter
inner diameter
cutting
drill
Prior art date
Application number
KR1019950035423A
Other languages
Korean (ko)
Other versions
KR0138408B1 (en
Inventor
김종명
Original Assignee
김종명
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 김종명 filed Critical 김종명
Priority to KR1019950035423A priority Critical patent/KR0138408B1/en
Publication of KR970020293A publication Critical patent/KR970020293A/en
Application granted granted Critical
Publication of KR0138408B1 publication Critical patent/KR0138408B1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
    • B23P15/28—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass cutting tools
    • B23P15/32—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass cutting tools twist-drills

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)

Abstract

본 발명은 두꺼운 적층지(積層紙)를 위에서 눌러 간단하게 천공(穿孔)할 수 있는 천공드릴의 제조방법에 관한 것으로, 평행한 외경과 내경을 갖는 원통형상의 파이프를 구비하는 단계; 상기 파이프를 절삭공하여 자루부와 칼날부를 형성하는 단계; 상기 칼날부의 외경을 끝단부에서 선단부로 갈수록 점점 작아지는 형태로 테이퍼 가공하는 단계; 상기 칼날부의 끝단부 외경보다 적어도 작은 내경의 인발구멍을 갖는 인발다이를 구비하고, 상기 끝단부를 시작으로 칼날부를 인발구멍에 통과시켜 인발가공하는 단계; 상기 인발가공된 칼날부의 외경을 끝단부에서 선단부로 갈수록 점점 작아지는 형태로 테이퍼가공하는 단계; 상기 칼날부의 끝단부 내경을 가공하여 칼날을 형성하는 단계;로 이루어진 것이다. 따라서 제조가 용이하고 제조시간이 단축되어 원가를 절감할 수 있으며, 칼날부의 길이에 관계없이 가공이 가능하여 특히 칼날부의 길이가 긴 천공드릴의 제조에 적합한 효과가 있다.The present invention relates to a method for manufacturing a drill drill that can be punched simply by pressing a thick laminated paper from above, comprising the steps of: providing a cylindrical pipe having a parallel outer diameter and an inner diameter; Cutting the pipe to form a bag portion and a blade portion; Tapering the outer diameter of the blade portion into a shape that gradually decreases from the end portion to the tip portion; A drawing die having a drawing hole having an inner diameter that is at least smaller than an outer diameter of the end of the blade part, and drawing the cutting part by passing the blade part through the drawing hole, starting with the end part; Tapering the outer diameter of the drawn blade portion into a smaller shape as it goes from an end portion to a tip portion; And processing the inner diameter of the end of the blade to form a blade. Therefore, it is easy to manufacture and the manufacturing time is shortened to reduce the cost, and can be processed irrespective of the length of the blade portion, there is an effect particularly suitable for the manufacture of a long drill length of the blade portion.

Description

천공드릴 제조방법Drilling method

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제3A도 내지 제3D도는 본 발명에 따른 천공드릴의 제조방법을 나타낸 공정도이다.3A to 3D are process drawings showing a method of manufacturing a drill drill according to the present invention.

Claims (3)

평행한 외경과 내경을 갖는 원통형상의 파이프를 구비하는 단계; 상기 파이프를 절삭가공하여 자루부와 칼날부를 형성하는 단계; 상기 칼날부의 외경을 끝단부에서 선단부로 갈수록 점점 작아지는 형태로 테이퍼가공 하는 단계; 상기 칼날부의 끝단부 외경보다 적어도 작은 내경의 인발구멍을 갖는 인발다이를 구비하고, 상기 끝단부를 시작으로 칼날부를 인발구멍에 통과시켜 인발가공하는 단계; 상기 인발가공된 칼날부의 외경을 끝단부에서 선단부로 갈수록 점점 작아지는 형태로 테이퍼가공하는 단계; 상기 칼날부의 끝단부 내경을 가공하여 칼날을 형성하는 단계;를 포함하여 됨을 특징으로 하는 천공드릴 제조방법.Providing a cylindrical pipe having a parallel outer diameter and an inner diameter; Cutting the pipe to form a bag portion and a blade portion; Tapering the outer diameter of the blade portion into a smaller shape as it goes from the end portion to the tip portion; A drawing die having a drawing hole having an inner diameter that is at least smaller than an outer diameter of the end of the blade part, and drawing the cutting part by passing the blade part through the drawing hole, starting with the end part; Tapering the outer diameter of the drawn blade portion into a smaller shape as it goes from an end portion to a tip portion; Forming a blade by processing the inner diameter of the end of the blade portion; Method for manufacturing a drill drill characterized in that it comprises a. 제1항에 있어서, 상기 원통형의 파이프는 평행한 외경과 내경을 갖는 압출관을 소정길이로 절단하여 구비됨을 특징으로 하는 상기 천공드릴 제조방법.The method of claim 1, wherein the cylindrical pipe is prepared by cutting an extrusion pipe having a parallel outer diameter and an inner diameter to a predetermined length. 제1항에 있어서, 상기 칼날부의 인발가공시 칼날부의 외경에 따라서 칼날부를 30~100rpm으로 회전시킴을 특징으로 하는 상기 천공드릴 제조방법.The method of claim 1, wherein the blade is rotated at 30 ~ 100rpm according to the outer diameter of the blade during the drawing process of the blade. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019950035423A 1995-10-13 1995-10-13 Drill making method KR0138408B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019950035423A KR0138408B1 (en) 1995-10-13 1995-10-13 Drill making method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019950035423A KR0138408B1 (en) 1995-10-13 1995-10-13 Drill making method

Publications (2)

Publication Number Publication Date
KR970020293A true KR970020293A (en) 1997-05-28
KR0138408B1 KR0138408B1 (en) 1998-06-01

Family

ID=19430200

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019950035423A KR0138408B1 (en) 1995-10-13 1995-10-13 Drill making method

Country Status (1)

Country Link
KR (1) KR0138408B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100333102B1 (en) * 2000-02-02 2002-04-22 김학범 Method and device to manufacture piercing drill

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100976712B1 (en) * 2010-03-25 2010-08-18 공치남 A method for manufacturing vibrating film formation punch

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100333102B1 (en) * 2000-02-02 2002-04-22 김학범 Method and device to manufacture piercing drill

Also Published As

Publication number Publication date
KR0138408B1 (en) 1998-06-01

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