GB810543A - Improvements in or relating to the drilling of metals - Google Patents
Improvements in or relating to the drilling of metalsInfo
- Publication number
- GB810543A GB810543A GB1002354A GB1002354A GB810543A GB 810543 A GB810543 A GB 810543A GB 1002354 A GB1002354 A GB 1002354A GB 1002354 A GB1002354 A GB 1002354A GB 810543 A GB810543 A GB 810543A
- Authority
- GB
- United Kingdom
- Prior art keywords
- tip
- duct
- shank
- diameter
- coolant
- 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.)
- Expired
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B51/00—Tools for drilling machines
- B23B51/06—Drills with lubricating or cooling equipment
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Drilling Tools (AREA)
Abstract
810,543. Drills. NATIONAL RESEARCH DEVELOPMENT CORPORATION. July 6, 1955 [April 6, 1954], No. 10023/54. Class 83 (3). A drill comprises a longitudinal duct 2 in the shank 1, through which a refrigerating medium, e.g. carbon dioxide, or a refrigerated medium, which may be in the form of a mist, is fed to the vicinity of the cutting- edges of the drill. The duct 2, in the nature of a capillary tube, may be formed by drawing or extruding a thick-walled tube until the bore is of the required diameter, or by lining the shank with a capillary tube. A coaxial duct 6, in the tip 5 of a cermet or of hard metal, may have a smaller diameter than duct 2, and can be formed in the moulding of the tip or by drilling, e.g. by ultrasonic vibrations. The diameter of the shank may be the same as, or less than, that of the tip, or it may be less than that of the tip except at the part adjacent the tip. One or more ducts 7 may discharge the coolant to the rear of the cutting-edges of the tip. The coolant may be supplied to a chamber 10 of sufficient length to allow the drill to be fed without exposing the entrance passage 9 to the duct 2, or the end of the shank may project into a coolant chamber. An insert 13, Fig. 2, may be used having a ridged, dovetailed or rounded portion to engage the shank. The Provisional Specification refers to a diameter of from 0.001 to 0.02 inch for the capillary duct.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1002354A GB810543A (en) | 1954-04-06 | 1954-04-06 | Improvements in or relating to the drilling of metals |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1002354A GB810543A (en) | 1954-04-06 | 1954-04-06 | Improvements in or relating to the drilling of metals |
Publications (1)
Publication Number | Publication Date |
---|---|
GB810543A true GB810543A (en) | 1959-03-18 |
Family
ID=9960021
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1002354A Expired GB810543A (en) | 1954-04-06 | 1954-04-06 | Improvements in or relating to the drilling of metals |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB810543A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3293727A (en) * | 1961-04-12 | 1966-12-27 | Bilt Rite Tool & Machine Co | Cutting tool |
EP2274126A2 (en) * | 2008-04-11 | 2011-01-19 | EHWA Diamond Industrial Co., Ltd. | Drill bit |
CN109352038A (en) * | 2018-12-05 | 2019-02-19 | 山东大学 | A kind of interior cooling drills and reams ream integrated tool and the system including the cutter |
CN115121840A (en) * | 2022-07-15 | 2022-09-30 | 天津立林石油机械有限公司 | High-efficient leading screw drilling tool |
US20230182212A1 (en) * | 2021-12-14 | 2023-06-15 | Iscar, Ltd. | Insert holder having weight-reducing voids and cutting tool |
-
1954
- 1954-04-06 GB GB1002354A patent/GB810543A/en not_active Expired
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3293727A (en) * | 1961-04-12 | 1966-12-27 | Bilt Rite Tool & Machine Co | Cutting tool |
EP2274126A2 (en) * | 2008-04-11 | 2011-01-19 | EHWA Diamond Industrial Co., Ltd. | Drill bit |
EP2274126A4 (en) * | 2008-04-11 | 2011-10-05 | Ehwa Diamond Ind Co Ltd | Drill bit |
US8801342B2 (en) | 2008-04-11 | 2014-08-12 | Ehwa Diamond Industrial Co., Ltd. | Drill bit |
CN109352038A (en) * | 2018-12-05 | 2019-02-19 | 山东大学 | A kind of interior cooling drills and reams ream integrated tool and the system including the cutter |
US20230182212A1 (en) * | 2021-12-14 | 2023-06-15 | Iscar, Ltd. | Insert holder having weight-reducing voids and cutting tool |
CN115121840A (en) * | 2022-07-15 | 2022-09-30 | 天津立林石油机械有限公司 | High-efficient leading screw drilling tool |
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