ZA773422B - Manufacturing process of steel tubes for barrels helicoidally straited in the inner part - Google Patents
Manufacturing process of steel tubes for barrels helicoidally straited in the inner partInfo
- Publication number
- ZA773422B ZA773422B ZA00773422A ZA773422A ZA773422B ZA 773422 B ZA773422 B ZA 773422B ZA 00773422 A ZA00773422 A ZA 00773422A ZA 773422 A ZA773422 A ZA 773422A ZA 773422 B ZA773422 B ZA 773422B
- Authority
- ZA
- South Africa
- Prior art keywords
- straited
- helicoidally
- barrels
- manufacturing process
- inner part
- Prior art date
Links
Classifications
-
- 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
- B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
- B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
- B21C37/15—Making tubes of special shape; Making tube fittings
- B21C37/152—Making rifle and gunbarrels
- B21C37/153—Making tubes with inner- and/or outer guides
-
- 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
- B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
- B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
- B21C37/15—Making tubes of special shape; Making tube fittings
- B21C37/20—Making helical or similar guides in or on tubes without removing material, e.g. by drawing same over mandrels, by pushing same through dies ; Making tubes with angled walls, ribbed tubes and tubes with decorated walls
- B21C37/207—Making helical or similar guides in or on tubes without removing material, e.g. by drawing same over mandrels, by pushing same through dies ; Making tubes with angled walls, ribbed tubes and tubes with decorated walls with helical guides
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metal Extraction Processes (AREA)
- Materials For Medical Uses (AREA)
- Slide Fasteners, Snap Fasteners, And Hook Fasteners (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ES448624A ES448624A1 (en) | 1976-06-07 | 1976-06-07 | Method of fabricating steel pipe for gun body having at its inner surface spiral groove |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ZA773422B true ZA773422B (en) | 1978-04-26 |
Family
ID=8471708
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ZA00773422A ZA773422B (en) | 1976-06-07 | 1977-06-07 | Manufacturing process of steel tubes for barrels helicoidally straited in the inner part |
Country Status (17)
| Country | Link |
|---|---|
| JP (1) | JPS52150363A (en) |
| AR (1) | AR220678A1 (en) |
| AT (1) | AT364593B (en) |
| BE (1) | BE855458A (en) |
| BR (1) | BR7703699A (en) |
| CH (1) | CH620378A5 (en) |
| DD (1) | DD132299A5 (en) |
| DE (1) | DE2724195A1 (en) |
| DK (1) | DK248977A (en) |
| ES (1) | ES448624A1 (en) |
| FR (1) | FR2354155A1 (en) |
| IT (1) | IT1078882B (en) |
| NL (1) | NL7706197A (en) |
| NO (1) | NO771966L (en) |
| PL (1) | PL198702A1 (en) |
| SE (1) | SE7706487L (en) |
| ZA (1) | ZA773422B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4854148A (en) * | 1987-06-19 | 1989-08-08 | The Babcock & Wilcox Company | Cold drawing technique and apparatus for forming internally grooved tubes |
| CN111842517A (en) * | 2020-07-24 | 2020-10-30 | 浙江久立特材科技股份有限公司 | Cold drawing die for ribbed cladding tube, production process and finished tube thereof |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR518136A (en) * | 1918-03-27 | 1921-05-19 | Ternitzer Stahl Und Eisenwerke | Method and device for obtaining scratches in tubes |
| US2104319A (en) * | 1934-02-10 | 1938-01-04 | Remington Arms Co Inc | Manufacture of rifled tubes |
| DE950362C (en) * | 1940-01-16 | 1956-10-11 | Benteler Werke Ag | Process for the production of twist tubes of firearms provided with helical trains and which can be shot at without post-processing |
| DE768148C (en) * | 1941-12-28 | 1958-07-03 | Gustav Appel Maschinenfabrik | Process for the production of a pipe with a polygonal constant or narrowing internal cross-section |
| FR1028353A (en) * | 1949-11-24 | 1953-05-21 | Oerlikon Buehrle Ag | Method of machining firearms tubes |
| US2852835A (en) * | 1954-04-29 | 1958-09-23 | Harvey Machine Co Inc | Apparatus for forming spiral projections in tubing |
| GB1202491A (en) * | 1967-03-15 | 1970-08-19 | Nippon Kokan Kk | A method and apparatus for forming internal helical ribbing in a metal tube |
| CH588311A5 (en) * | 1975-06-13 | 1977-05-31 | Jansen Ag | Helically grooved tool mfr. - by drawing between two-part tools having groove negative pattern to give continuous helix on tube |
-
1976
- 1976-06-07 ES ES448624A patent/ES448624A1/en not_active Expired
-
1977
- 1977-03-31 AR AR267895A patent/AR220678A1/en active
- 1977-05-24 CH CH637577A patent/CH620378A5/en not_active IP Right Cessation
- 1977-05-27 JP JP6207677A patent/JPS52150363A/en active Pending
- 1977-05-27 DE DE19772724195 patent/DE2724195A1/en active Pending
- 1977-06-01 IT IT49666/77A patent/IT1078882B/en active
- 1977-06-01 FR FR7716667A patent/FR2354155A1/en active Pending
- 1977-06-03 DD DD7700199295A patent/DD132299A5/en unknown
- 1977-06-03 SE SE7706487A patent/SE7706487L/en unknown
- 1977-06-06 NL NL7706197A patent/NL7706197A/en not_active Application Discontinuation
- 1977-06-06 DK DK248977A patent/DK248977A/en unknown
- 1977-06-06 NO NO771966A patent/NO771966L/en unknown
- 1977-06-07 BR BR7703699A patent/BR7703699A/en unknown
- 1977-06-07 PL PL19870277A patent/PL198702A1/en unknown
- 1977-06-07 BE BE178254A patent/BE855458A/en unknown
- 1977-06-07 AT AT0401377A patent/AT364593B/en not_active IP Right Cessation
- 1977-06-07 ZA ZA00773422A patent/ZA773422B/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| NO771966L (en) | 1977-12-08 |
| DE2724195A1 (en) | 1977-12-22 |
| PL198702A1 (en) | 1978-01-30 |
| AT364593B (en) | 1981-10-27 |
| IT1078882B (en) | 1985-05-08 |
| AR220678A1 (en) | 1980-11-28 |
| CH620378A5 (en) | 1980-11-28 |
| ATA401377A (en) | 1981-03-15 |
| JPS52150363A (en) | 1977-12-14 |
| FR2354155A1 (en) | 1978-01-06 |
| SE7706487L (en) | 1977-12-08 |
| BE855458A (en) | 1977-10-03 |
| DK248977A (en) | 1977-12-08 |
| NL7706197A (en) | 1977-12-09 |
| ES448624A1 (en) | 1977-07-01 |
| DD132299A5 (en) | 1978-09-20 |
| BR7703699A (en) | 1978-03-21 |
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