GB1341713A - - Google Patents
Info
- Publication number
- GB1341713A GB1341713A GB3665871A GB3665871A GB1341713A GB 1341713 A GB1341713 A GB 1341713A GB 3665871 A GB3665871 A GB 3665871A GB 3665871 A GB3665871 A GB 3665871A GB 1341713 A GB1341713 A GB 1341713A
- Authority
- GB
- United Kingdom
- Prior art keywords
- bar
- twisting
- heating
- chucks
- heater
- 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
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D11/00—Bending not restricted to forms of material mentioned in only one of groups B21D5/00, B21D7/00, B21D9/00; Bending not provided for in groups B21D5/00 - B21D9/00; Twisting
- B21D11/14—Twisting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B31/00—Chucks; Expansion mandrels; Adaptations thereof for remote control
- B23B31/02—Chucks
- B23B31/10—Chucks characterised by the retaining or gripping devices or their immediate operating means
- B23B31/12—Chucks with simultaneously-acting jaws, whether or not also individually adjustable
- B23B31/1261—Chucks with simultaneously-acting jaws, whether or not also individually adjustable pivotally movable in a radial plane
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Wire Processing (AREA)
- Drilling Tools (AREA)
- Heat Treatment Of Articles (AREA)
Abstract
1341713 Twisting; making twist drills G ORY 4 Aug 1971 [5 Aug 1970] 36658/71 Headings B3E and B3A A method of twisting a metal bar comprises heating a narrow transverse zone of the bar and continuously advancing the heating zone along the length of the bar while applying a twisting torque, a computer being used to control the heating and the twisting torque. A twist drill blank having channels 33, 34 and cuts 35, 36, Fig. 5, is held at its ends by two opposite rotating chucks 5, 7, Fig. 2, while an induction heater 23, Fig. 4, is moved along the bar, the width of the heated zone being limited by a shower of air or vapour. The ends of the bar are clamped in the chucks 5, 7 by cams 13 which are actuated by rotation of a plate 11 having pins 17 engaging slots 18 in the cams. The computer controls the heating of the bar inside the heater 23, the linear advance speed of the heater along the bar, and the angular speed of the spindles which rotate chucks 5, 7. On completion of the twisting the cuts 35, 36 are present as helices on the surface of the bar and act as guides for a machine for forming helical channels 37.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7028860A FR2104703B1 (en) | 1970-08-05 | 1970-08-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1341713A true GB1341713A (en) | 1973-12-25 |
Family
ID=9059810
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3665871A Expired GB1341713A (en) | 1970-08-05 | 1971-08-04 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US3731033A (en) |
| JP (1) | JPS5234585B1 (en) |
| DE (1) | DE2136985B2 (en) |
| FR (1) | FR2104703B1 (en) |
| GB (1) | GB1341713A (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5945732B2 (en) * | 1977-02-08 | 1984-11-08 | 日本鋼管株式会社 | Heat treatment method and device for long metal materials |
| FR2478504B1 (en) * | 1980-03-21 | 1985-11-08 | Grandjean Thierry | DEVICE FOR MANUFACTURING STEEL STRANDS FORMING SAWS, PROCESS FOR IMPLEMENTING THE DEVICE AND PRODUCT THUS OBTAINED |
| US5092038A (en) * | 1989-04-03 | 1992-03-03 | G. P. Industries, Inc. | Method of manufacturing spiral heat exchanger tubes with an external fin |
| CA2692995C (en) | 2010-02-01 | 2016-06-28 | Kudu Industries Inc. | A system and method for induction heating a helical rotor using a coil |
| CN112170580A (en) * | 2019-07-03 | 2021-01-05 | 天津市升发科技股份有限公司 | Section bar graining machine with section bar placing support |
| DK180720B1 (en) * | 2020-03-20 | 2022-01-20 | Fynbo Eng Ivs | A GRIP TOOL, A SYSTEM, A MOUNTING UNIT, AND A PROCEDURE FOR HANDLING OBJECTS IN A PROCESS |
| CN114888145B (en) * | 2022-07-15 | 2022-10-25 | 四川富士电机有限公司 | Wiper arm twisting angle forming device |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1891831A (en) * | 1928-06-16 | 1932-12-20 | Zh Rikagaku Kenkyujo | Machine for manufacturing twist drills |
| US2522499A (en) * | 1945-04-28 | 1950-09-19 | Berglund Jonas Olov | Method of manufacturing twisted drills and other tools |
| US2667204A (en) * | 1952-03-29 | 1954-01-26 | Westinghouse Electric Corp | Coiling head assembly |
| US2761958A (en) * | 1953-04-10 | 1956-09-04 | Boeing Co | Method and apparatus for forming helical blade |
| US3198926A (en) * | 1961-09-07 | 1965-08-03 | Ford Motor Co | Method for upsetting elongated articles |
| US3384730A (en) * | 1965-08-19 | 1968-05-21 | Ohio Crankshaft Co | Machine feed mechanism |
-
1970
- 1970-08-05 FR FR7028860A patent/FR2104703B1/fr not_active Expired
-
1971
- 1971-07-23 US US00165046A patent/US3731033A/en not_active Expired - Lifetime
- 1971-07-23 DE DE2136985A patent/DE2136985B2/en not_active Withdrawn
- 1971-07-30 JP JP46056869A patent/JPS5234585B1/ja active Pending
- 1971-08-04 GB GB3665871A patent/GB1341713A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE2136985B2 (en) | 1980-10-02 |
| US3731033A (en) | 1973-05-01 |
| FR2104703B1 (en) | 1974-09-20 |
| FR2104703A1 (en) | 1972-04-21 |
| DE2136985A1 (en) | 1972-02-10 |
| JPS5234585B1 (en) | 1977-09-03 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PE20 | Patent expired after termination of 20 years |