GB924786A - Improvements in cutting tool manufacture - Google Patents
Improvements in cutting tool manufactureInfo
- Publication number
- GB924786A GB924786A GB1155561A GB1155561A GB924786A GB 924786 A GB924786 A GB 924786A GB 1155561 A GB1155561 A GB 1155561A GB 1155561 A GB1155561 A GB 1155561A GB 924786 A GB924786 A GB 924786A
- Authority
- GB
- United Kingdom
- Prior art keywords
- bar
- billet
- shank
- cutting
- fluted
- 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
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
- B21K5/00—Making tools or tool parts, e.g. pliers
- B21K5/02—Making tools or tool parts, e.g. pliers drilling-tools or other for making or working on holes
- B21K5/04—Making tools or tool parts, e.g. pliers drilling-tools or other for making or working on holes twisting-tools, e.g. drills, reamers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C23/00—Extruding metal; Impact extrusion
- B21C23/02—Making uncoated products
- B21C23/04—Making uncoated products by direct extrusion
- B21C23/14—Making other products
- B21C23/147—Making drill blanks
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Drilling Tools (AREA)
Abstract
924,786. Making fluted cutting-tools; extruding. CLEVELAND TWIST DRILL (GREAT BRITAIN) Ltd., and DANIEL DONCASTER & SONS Ltd. Feb. 27, 1962 [March 29, 1961], No. 11555/61. Classes 83 (2) and 83 (4). A helically fluted cutting-tool such as a drill, is made by extruding a billet 3 completely through a die 2 to form a fluted bar, cutting the bar into separate lengths and welding each length to a shank of different material. The billet 3 is of heated high-speed tool steel and a graphite plug 4 is inserted between the billet and the press ram 6. Each cut length of extruded bar may be heat-treated and machined before butt-welding to a shank of low carbon steel. Alternatively, the shank may have a groove of the required shape to receive the end of the bar.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1155561A GB924786A (en) | 1961-03-29 | 1961-03-29 | Improvements in cutting tool manufacture |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1155561A GB924786A (en) | 1961-03-29 | 1961-03-29 | Improvements in cutting tool manufacture |
Publications (1)
Publication Number | Publication Date |
---|---|
GB924786A true GB924786A (en) | 1963-05-01 |
Family
ID=9988389
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1155561A Expired GB924786A (en) | 1961-03-29 | 1961-03-29 | Improvements in cutting tool manufacture |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB924786A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0223909A1 (en) * | 1985-10-31 | 1987-06-03 | Fried. Krupp Gesellschaft mit beschränkter Haftung | Extrusion die for manufacturing a drill blank of hard metal or ceramics |
GB2218931A (en) * | 1986-01-18 | 1989-11-29 | Krupp Gmbh | An extrusion tool |
-
1961
- 1961-03-29 GB GB1155561A patent/GB924786A/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0223909A1 (en) * | 1985-10-31 | 1987-06-03 | Fried. Krupp Gesellschaft mit beschränkter Haftung | Extrusion die for manufacturing a drill blank of hard metal or ceramics |
GB2218931A (en) * | 1986-01-18 | 1989-11-29 | Krupp Gmbh | An extrusion tool |
GB2218931B (en) * | 1986-01-18 | 1990-07-04 | Krupp Gmbh | Extrusion tool |
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