NO800640L - PROCEDURE FOR MANUFACTURING PROJECTILES. - Google Patents
PROCEDURE FOR MANUFACTURING PROJECTILES.Info
- Publication number
- NO800640L NO800640L NO800640A NO800640A NO800640L NO 800640 L NO800640 L NO 800640L NO 800640 A NO800640 A NO 800640A NO 800640 A NO800640 A NO 800640A NO 800640 L NO800640 L NO 800640L
- Authority
- NO
- Norway
- Prior art keywords
- projectile
- belt
- friction
- shell surface
- procedure
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 10
- 238000004519 manufacturing process Methods 0.000 title 1
- 229910000831 Steel Inorganic materials 0.000 claims description 5
- 239000010959 steel Substances 0.000 claims description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 229910052742 iron Inorganic materials 0.000 claims description 2
- 229910000640 Fe alloy Inorganic materials 0.000 claims 1
- 238000003466 welding Methods 0.000 description 4
- 239000002800 charge carrier Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical group [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910000881 Cu alloy Chemical group 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B14/00—Projectiles or missiles characterised by arrangements for guiding or sealing them inside barrels, or for lubricating or cleaning barrels
- F42B14/02—Driving bands; Rotating bands
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Pressure Welding/Diffusion-Bonding (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
- Glass Compositions (AREA)
Description
Oppfinnelsen angår en fremgangsmåte for befestigelse av et belte til et prosjektil eller en ladningsbærer, eksempelvis en artillerigranat. The invention relates to a method for attaching a belt to a projectile or a charge carrier, for example an artillery shell.
Prosjektiler med grovere kaliber enn de som be-nyttes ved rene håndildvåpen og såkalte tunge maskingeværer forsynes vanligvis med et til prosjektilets bakre del festet belte eller styrebånd som har som oppgave å tette i løpet og omvandle løpriflingens spiralvridning til en roterende be-vegelse av prosjektilet. Beltet fremstilles vanligvis av et mykere materiale enn prosjektilet forøvrig, hovedsakelig på grunn av at slitasjen på løpriflingen på denne måte kan holdes nede. Projectiles with a coarser caliber than those used in pure handguns and so-called heavy machine guns are usually provided with a belt or guide band attached to the rear of the projectile, which has the task of sealing the barrel and converting the spiral twist of the barrel rifling into a rotating movement of the projectile. The belt is usually made of a softer material than the rest of the projectile, mainly because the wear on the barrel rifling can be kept down in this way.
For å feste beltet på plass på prosjektillegemet har man tidligere benyttet presspasninger eller kombinerte press- og krympeforbindelser. To fasten the belt in place on the projectile body, press fits or combined press and crimp connections have previously been used.
Nye krav med hensyn til økede utskytningshastig-heter og skuddvidder har imidlertid medført at man er blitt tvunget til å øke prosjektilenes utgangshastighet i så høy grad at man ikke kan være helt sikker på at press- eller krympeforbindelsene klarer å holde beltet på plass selv om det er blitt anbrakt i et spor i prosjektilets mantelflate. However, new requirements with regard to increased launch velocities and firing ranges have meant that one has been forced to increase the exit velocity of the projectiles to such a high extent that one cannot be completely sure that the press or shrink connections will be able to keep the belt in place even if has been placed in a groove in the projectile's mantle surface.
Den foreliggende oppfinnelse angår en ny fremgangsmåte for befestigelse av det aktuelle belte til prosjektilets mantelflate. Ifølge oppfinnelsen friksjonssveises beltet til prosjektilets mantelflate. Friksjonssveising er i og for seg kjent teknikk, men i den foreliggende forbindelse anvendes altså denne teknikk for et meget spesielt formål. The present invention relates to a new method for attaching the relevant belt to the projectile's casing surface. According to the invention, the belt is friction-welded to the shell surface of the projectile. Friction welding is a known technique in and of itself, but in the present connection this technique is therefore used for a very special purpose.
Som regel er ladningsbærende artilleriprosjektiler fremstilt av seigherdningsstål mens styrebåndet eller beltet tidligere som regel har bestått av kobber eller kobberlege-ringer. I og med den her foreslåtte teknikk antas det å være hensiktsmessig å gå over til et materiale som er mer egnet for friksjonssveising mot prosjektilets stålmantelflate. Et eksempel på et slikt passende materiale er sinterjern som både er passende å friksjonssveise mot stål og er vesentlig mykere enn stålet. Sistnevnte egenskap er fordelaktig for å redusere slitasjen på ildrøret. As a rule, charge-carrying artillery projectiles are made of case-hardening steel, while the guide band or belt has previously usually consisted of copper or copper alloy rings. With the technique proposed here, it is believed to be appropriate to switch to a material that is more suitable for friction welding against the projectile's steel jacket surface. An example of such a suitable material is sintered iron, which is both suitable for friction welding against steel and is significantly softer than the steel. The latter property is advantageous for reducing wear on the fire tube.
Friksjonssveisingen av styrebåndet eller beltet mot prosjektilets mantel skjer på i og for seg kjent måte før sluttbearbeidelsen av prosjektilet. Fremgangsmåten ifølge oppfinnelsen er presisert i de etterfølgende patent-krav. The friction welding of the guide band or belt against the projectile's casing takes place in a manner known per se before the final processing of the projectile. The method according to the invention is specified in the subsequent patent claims.
,Oppfinnelsen skal beskrives nærmere i det følgende under henvisning til tegningen, der fig. 1 viser et tverr-snitt gjennom et prosjektil eller en ladningsbærer, mens fig. 2 viser en detalj av det samme prosjektil i større måle-stokk. ,The invention shall be described in more detail below with reference to the drawing, where fig. 1 shows a cross-section through a projectile or a charge carrier, while fig. 2 shows a detail of the same projectile on a larger scale.
Prosjektilet ifølge fig. 1 består av et granatlegeme 1 med et indre hulrom 2 for en ladning. På granatlegemets 1 bakre del er anbrakt et styrebånd eller belte G. I granatens mantelflate er det anordnet omkretsspor, nærmere bestemt et umiddelbart foran og et umiddelbart etter beltet anordnet omkretsspor 3 og 4, og videre noen lengre bak på prosjektillegemet anordnede omkretsspor 5 og 6 som er beregnet for patrone-ring av prosjektilet. Ved prosjektilets fremre.ende er vist en nesekonus 7 som kan omfatte et tennrør av den ene eller andre type. Ifølge oppfinnelsen friksjonssveises beltet først til et prosjektilemne og deretter sluttbearbeides granatlegemet med de aktuelle omkretsspor og beltet gis sin endelige form. The projectile according to fig. 1 consists of a grenade body 1 with an internal cavity 2 for a charge. A guide band or belt G is placed on the rear part of the grenade body 1. In the shell surface of the grenade there are circumferential grooves, more precisely one immediately in front and one immediately after the belt arranged circumferential grooves 3 and 4, and further some circumferential grooves 5 and 6 arranged further back on the projectile body which is intended for cartridge-ring of the projectile. A nose cone 7 is shown at the front end of the projectile, which may comprise an ignition tube of one or the other type. According to the invention, the belt is first friction welded to a projectile blank and then the shell body is finished with the relevant circumferential grooves and the belt is given its final shape.
Slik det fremgår av fig. 2, kan beltet være ut-formet med en sentral, rundt beltets omkrets forløpende for^-høyning eller rygg 8. As can be seen from fig. 2, the belt can be out-shaped with a central ridge or ridge running around the circumference of the belt 8.
Claims (3)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE7902040A SE441305B (en) | 1979-03-07 | 1979-03-07 | WAY TO FIX A PROJECTIL'S BELT BY FRICTION SWEATING |
Publications (1)
Publication Number | Publication Date |
---|---|
NO800640L true NO800640L (en) | 1980-09-08 |
Family
ID=20337482
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NO800640A NO800640L (en) | 1979-03-07 | 1980-03-06 | PROCEDURE FOR MANUFACTURING PROJECTILES. |
Country Status (9)
Country | Link |
---|---|
DE (1) | DE3008912A1 (en) |
ES (1) | ES489714A0 (en) |
FI (1) | FI800618A (en) |
FR (1) | FR2451016A1 (en) |
GB (1) | GB2045903A (en) |
IT (1) | IT1146978B (en) |
NL (1) | NL8001179A (en) |
NO (1) | NO800640L (en) |
SE (1) | SE441305B (en) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3248011C1 (en) * | 1982-12-24 | 1984-09-20 | Karl Schmidt Gmbh, 7107 Neckarsulm | Guide tape for projectiles |
DE4039956C2 (en) * | 1990-12-14 | 2000-06-21 | Diehl Stiftung & Co | Method of attaching a guide tape to a floor |
DE4330416C2 (en) * | 1993-09-08 | 1998-07-09 | Rheinmetall Ind Ag | Method for welding a soft iron guide band to a steel shell |
SE505232C2 (en) * | 1995-10-03 | 1997-07-21 | Foersvarets Forskningsanstalt | Rotation stabilized projectile with metal girdle |
NO954707A (en) * | 1995-11-21 | 1997-05-05 | Raufoss Tech As | Procedure for manufacturing projectiles |
DE19815295C2 (en) * | 1998-04-06 | 2003-05-15 | Rheinmetall W & M Gmbh | Spin-stabilized artillery shell that can be fired from a gun barrel |
FR2780682A1 (en) | 1998-07-06 | 2000-01-07 | Michelin Rech Tech | METHOD AND DEVICE FOR DETECTING A CONDITION OF A FLAT ROLLING OF A TIRE - INSERTS, WHEELS AND TIRES DESIGNED FOR THIS PROCESS |
CN105772936B (en) * | 2016-05-23 | 2018-03-27 | 哈尔滨万洲焊接技术有限公司 | A kind of method that copper bearing band is prepared using agitating friction weldering |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE221407C (en) * | ||||
DE645335C (en) * | 1932-04-24 | 1937-05-26 | Fried Krupp Akt Ges | Floor guide strips |
US2353693A (en) * | 1942-09-28 | 1944-07-18 | Joseph H Church | Rotating band |
NL99102C (en) * | 1956-04-15 | |||
US3013332A (en) * | 1957-08-02 | 1961-12-19 | Copperweld Steel Co | System for banding ordnance shells or the like |
NL101130C (en) * | 1959-02-17 | |||
US3134278A (en) * | 1959-08-12 | 1964-05-26 | American Mach & Foundry | Friction welding |
DE1243055B (en) * | 1964-10-24 | 1967-06-22 | Rheinmetall Gmbh | Bullet with a guide ring pressed into an annular groove |
-
1979
- 1979-03-07 SE SE7902040A patent/SE441305B/en unknown
-
1980
- 1980-02-27 NL NL8001179A patent/NL8001179A/en not_active Application Discontinuation
- 1980-02-29 FI FI800618A patent/FI800618A/en not_active Application Discontinuation
- 1980-03-05 IT IT48082/80A patent/IT1146978B/en active
- 1980-03-05 ES ES489714A patent/ES489714A0/en active Granted
- 1980-03-06 FR FR8005059A patent/FR2451016A1/en not_active Withdrawn
- 1980-03-06 GB GB8007674A patent/GB2045903A/en not_active Withdrawn
- 1980-03-06 NO NO800640A patent/NO800640L/en unknown
- 1980-03-07 DE DE19803008912 patent/DE3008912A1/en not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
IT1146978B (en) | 1986-11-19 |
SE441305B (en) | 1985-09-23 |
GB2045903A (en) | 1980-11-05 |
ES8100481A1 (en) | 1980-11-01 |
SE7902040L (en) | 1980-09-08 |
DE3008912A1 (en) | 1980-09-18 |
NL8001179A (en) | 1980-09-09 |
FR2451016A1 (en) | 1980-10-03 |
ES489714A0 (en) | 1980-11-01 |
FI800618A (en) | 1980-09-08 |
IT8048082A0 (en) | 1980-03-05 |
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