KR20090082528A - 난삭재의 고속가공용 트위스트 드릴 리머 - Google Patents
난삭재의 고속가공용 트위스트 드릴 리머 Download PDFInfo
- Publication number
- KR20090082528A KR20090082528A KR1020080008331A KR20080008331A KR20090082528A KR 20090082528 A KR20090082528 A KR 20090082528A KR 1020080008331 A KR1020080008331 A KR 1020080008331A KR 20080008331 A KR20080008331 A KR 20080008331A KR 20090082528 A KR20090082528 A KR 20090082528A
- Authority
- KR
- South Korea
- Prior art keywords
- cutting edge
- range
- angle
- reamer
- degrees
- Prior art date
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B51/00—Tools for drilling machines
- B23B51/02—Twist drills
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2228/00—Properties of materials of tools or workpieces, materials of tools or workpieces applied in a specific manner
- B23B2228/10—Coatings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2251/00—Details of tools for drilling machines
- B23B2251/04—Angles, e.g. cutting angles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2251/00—Details of tools for drilling machines
- B23B2251/20—Number of cutting edges
- B23B2251/202—Three cutting edges
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2251/00—Details of tools for drilling machines
- B23B2251/24—Overall form of drilling tools
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2251/00—Details of tools for drilling machines
- B23B2251/44—Margins, i.e. the narrow portion of the land which is not cut away to provide clearance on the circumferential surface
- B23B2251/443—Double margin drills
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Drilling Tools (AREA)
Abstract
Description
Claims (1)
- 선단에 마진을 가지지 않는 한쌍의 주절삭날(E1)을 가지며, 외주 부분에는 2쌍의 제2 절삭날(E2)과 제3 절삭날(E3)을 설치하고, 제2 절삭날의 마진(M2)은 0.4∼0.6mm의 범위이며, 제3 절삭날의 마진(M3)은 0.6∼0.7mm의 범위이고, 주절삭날(E1)의 선단부 외경(D)에 비하여 제2 절삭날과 제3 절삭날의 선단부 외경을 0.02∼0.06mm 크도록 하며, 주절삭날(E)에 평행으로서 트위스트 드릴 리머(30)의 중심을 통하는 중심선(O1)과 주절삭날(E1)과의 이루는 폭(W)은 0.078∼0.082D의 범위로 하며, 선단부로부터 축방향으로 이어지는 절삭칩 배출용의 비틀림홈(F)의 비틀림각(θ)을 28도에서 30도의 범위로 형성함과 동시에, 랜드폭(GL)과 홈폭(FL)과의 홈폭비를 1 : 0.9∼1.1의 범위로 하며, 주절삭날(E1)과 제2 절삭날(E2) 및 제3 절삭날(E3)의 경사각(α)은 -10∼-15도의 범위로 하며, 여유각(β)은 9∼11도의 범위를 가지고, 선단각(σ)은 135∼145도의 범위로 하며, 치젤날폭(T1)은 0.025∼0.035D의 범위를 가지고, 치젤날각(δ)은 120도∼130도의 범위이며, 시닝 절삭날각(ε)은 150∼160도의 범위를 가지고, 웨브폭(T2)은 0.29∼0.31D의 범위이며, 트위스트 드릴 리머의 축방향 길이를 L이라 할 때, 섕크(S) 측을 향한 절삭날의 백테이퍼는 (0.04∼0.1)/100L의 범위이며, 섕크(S) 측을 향한 웨브 테이퍼는 (0.9∼1.1)/100L의 범위이고, TiAlN 코팅이 실시된 것을 특징으로 하는 난삭재의 고속가공용 트위스트 드릴 리머.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020080008331A KR100990171B1 (ko) | 2008-01-28 | 2008-01-28 | 난삭재의 고속가공용 트위스트 드릴 리머 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020080008331A KR100990171B1 (ko) | 2008-01-28 | 2008-01-28 | 난삭재의 고속가공용 트위스트 드릴 리머 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20090082528A true KR20090082528A (ko) | 2009-07-31 |
KR100990171B1 KR100990171B1 (ko) | 2010-10-29 |
Family
ID=41293812
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020080008331A KR100990171B1 (ko) | 2008-01-28 | 2008-01-28 | 난삭재의 고속가공용 트위스트 드릴 리머 |
Country Status (1)
Country | Link |
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KR (1) | KR100990171B1 (ko) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2020211899A1 (de) * | 2019-04-15 | 2020-10-22 | Gühring KG | Bohrwerkzeug zum bohren und entgraten |
KR20220010343A (ko) * | 2020-07-17 | 2022-01-25 | 한국야금 주식회사 | 탄소 섬유 강화 플라스틱(cfrp) 가공용 드릴 |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR102548877B1 (ko) * | 2022-05-20 | 2023-06-27 | 이종화 | 6날 드릴 |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006095662A (ja) | 2004-09-30 | 2006-04-13 | Omi Kogyo Co Ltd | バニシング穴あけ工具 |
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2008
- 2008-01-28 KR KR1020080008331A patent/KR100990171B1/ko active IP Right Grant
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2020211899A1 (de) * | 2019-04-15 | 2020-10-22 | Gühring KG | Bohrwerkzeug zum bohren und entgraten |
KR20220010343A (ko) * | 2020-07-17 | 2022-01-25 | 한국야금 주식회사 | 탄소 섬유 강화 플라스틱(cfrp) 가공용 드릴 |
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Publication number | Publication date |
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KR100990171B1 (ko) | 2010-10-29 |
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