JPS6478711A - Twist drill - Google Patents
Twist drillInfo
- Publication number
- JPS6478711A JPS6478711A JP23664187A JP23664187A JPS6478711A JP S6478711 A JPS6478711 A JP S6478711A JP 23664187 A JP23664187 A JP 23664187A JP 23664187 A JP23664187 A JP 23664187A JP S6478711 A JPS6478711 A JP S6478711A
- Authority
- JP
- Japan
- Prior art keywords
- twist
- twist groove
- vibration
- groove
- angle
- 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
Links
Landscapes
- Drilling Tools (AREA)
Abstract
PURPOSE:To prevent vibration and breakdown of a cutter by setting torsional angle of two twisted grooves differently. CONSTITUTION:Cutting chips produced through cutters 5, 5 go to the base side while scratching the wall section of twisted grooves 3, 4. Since twist angle (alpha) of one twist groove 3 is set higher than the twist angle (beta) of the other twist groove 4, cutting chips are subjected to higher frictional resistance when it go along the twist groove 3 than when it go along the twist groove 4. Since radial component of frictional resistance is higher in the twist groove 4 than in the twist groove 3, a tool body 1 can be pushed in radial direction and rotated thus enabling control of vibration. Consequently, vibration of the tool body 1 can be prevented and the cutter 5 can be protected from breaking.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62236641A JP2590489B2 (en) | 1987-09-21 | 1987-09-21 | Twist drill |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62236641A JP2590489B2 (en) | 1987-09-21 | 1987-09-21 | Twist drill |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6478711A true JPS6478711A (en) | 1989-03-24 |
JP2590489B2 JP2590489B2 (en) | 1997-03-12 |
Family
ID=17003634
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62236641A Expired - Lifetime JP2590489B2 (en) | 1987-09-21 | 1987-09-21 | Twist drill |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2590489B2 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2010125881A1 (en) * | 2009-04-27 | 2010-11-04 | 京セラ株式会社 | Drill and method of cutting material to be cut using same |
WO2013099326A1 (en) * | 2011-12-28 | 2013-07-04 | 京セラ株式会社 | Drill and method for manufacturing drilled product using same |
WO2015030212A1 (en) * | 2013-08-30 | 2015-03-05 | 株式会社タンガロイ | Tool-edge exchangeable drill body and drill |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100601323B1 (en) | 2004-11-25 | 2006-07-13 | 주식회사 비-코리아 | An unsymmetrical twist drill |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63114808A (en) * | 1986-10-31 | 1988-05-19 | Izumo Sangyo Kk | Drill |
-
1987
- 1987-09-21 JP JP62236641A patent/JP2590489B2/en not_active Expired - Lifetime
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63114808A (en) * | 1986-10-31 | 1988-05-19 | Izumo Sangyo Kk | Drill |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2010125881A1 (en) * | 2009-04-27 | 2010-11-04 | 京セラ株式会社 | Drill and method of cutting material to be cut using same |
US8882411B2 (en) | 2009-04-27 | 2014-11-11 | Kyocera Corporation | Drill and method of cutting workpiece using the same |
WO2013099326A1 (en) * | 2011-12-28 | 2013-07-04 | 京セラ株式会社 | Drill and method for manufacturing drilled product using same |
CN103998167A (en) * | 2011-12-28 | 2014-08-20 | 京瓷株式会社 | Drill and method for manufacturing drilled product using same |
JPWO2013099326A1 (en) * | 2011-12-28 | 2015-04-30 | 京セラ株式会社 | Drill and method of manufacturing cut product using the same |
CN103998167B (en) * | 2011-12-28 | 2016-08-24 | 京瓷株式会社 | Drill bit and use the manufacture method of machining thing of this drill bit |
WO2015030212A1 (en) * | 2013-08-30 | 2015-03-05 | 株式会社タンガロイ | Tool-edge exchangeable drill body and drill |
Also Published As
Publication number | Publication date |
---|---|
JP2590489B2 (en) | 1997-03-12 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EXPY | Cancellation because of completion of term | ||
FPAY | Renewal fee payment |
Free format text: PAYMENT UNTIL: 20071219 Year of fee payment: 11 |