US3838497A - Attachment of rotating band to shell casing by brazing - Google Patents
Attachment of rotating band to shell casing by brazing Download PDFInfo
- Publication number
- US3838497A US3838497A US00306788A US30678872A US3838497A US 3838497 A US3838497 A US 3838497A US 00306788 A US00306788 A US 00306788A US 30678872 A US30678872 A US 30678872A US 3838497 A US3838497 A US 3838497A
- Authority
- US
- United States
- Prior art keywords
- rotating band
- brazing
- shell casing
- casing
- shell
- 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 - Lifetime
Links
- 238000005219 brazing Methods 0.000 title claims abstract description 25
- 238000000034 method Methods 0.000 claims description 13
- 229910052751 metal Inorganic materials 0.000 claims description 12
- 239000002184 metal Substances 0.000 claims description 12
- 230000006835 compression Effects 0.000 claims description 10
- 238000007906 compression Methods 0.000 claims description 10
- 239000011888 foil Substances 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 5
- 239000010949 copper Substances 0.000 description 6
- 239000000945 filler Substances 0.000 description 6
- 229910052802 copper Inorganic materials 0.000 description 5
- 229910000562 Gilding metal Inorganic materials 0.000 description 4
- 229910045601 alloy Inorganic materials 0.000 description 4
- 239000000956 alloy Substances 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 229910052709 silver Inorganic materials 0.000 description 4
- 239000007789 gas Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000011229 interlayer Substances 0.000 description 2
- 229910052718 tin Inorganic materials 0.000 description 2
- 229910001369 Brass Inorganic materials 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 229910052793 cadmium Inorganic materials 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 239000003380 propellant Substances 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
- B23K35/24—Selection of soldering or welding materials proper
- B23K35/30—Selection of soldering or welding materials proper with the principal constituent melting at less than 1550 degrees C
- B23K35/3006—Ag as the principal constituent
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K1/00—Soldering, e.g. brazing, or unsoldering
- B23K1/14—Soldering, e.g. brazing, or unsoldering specially adapted for soldering seams
- B23K1/18—Soldering, e.g. brazing, or unsoldering specially adapted for soldering seams circumferential seams, e.g. of shells
-
- 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
Definitions
- ABSTRACT Primary Examiner-Andrew R. Juhasz Assistant ExaminerRonald J. Shore Attorney, Agent, or Firm--Herbert Berl [S 7] ABSTRACT The improvement of attaching rotating bands to shell casings by brazing.
- This invention relates to improved means of attaching rotating bands to artillery shells, and more particulary by brazing the band to the shell casing.
- a rotating band is a cylindrical ring of copper or gilding metal positioned around the exterior surface of a projectile. It affords a snug seat for the projectile in the forcing cone and centers the base in the bore. As the projectile moves forward, the soft rotating band is engraved by the bands of the bore. Because of the compression of the band, excess metal flows toward the rear. This flow of metal is taken up by cannelures, or grooves, cut in the rotating band. Since the riflings of the weapon has a helical twist, rotating is imparted to the moving projectile by the engraved rotating band. In addition, the rotating band prevents the escape of the propellant gases forward of the projectile by completely filling the grooves of the rifling.
- One method of positioning a rotating band on an artillery shell has been to make a circumferential undercut groove on the outside of a cylindrical shell body.
- the bottom surface of the groove is knurled or otherwise roughened to enhance the mechanical bond to the shell body.
- the rotating band is then heated and squeezed into the groove.
- Another method of manufacture has been to deposit a length of weld overlay of metal on the outside diameter of a shell body.
- the present invention comprises the securing of the rotating band to the shell body by a metallurgical bond obtained through a low temperature brazing technique. This provides a stronger, more reliableattachment than the mechanical bond.
- the present invention eliminates the need for providing a circumferential gooove on the outside of a cylindrical shell body in order to accomodate the heated rotating band, thus providing a more uniform, stronger shell body wall configuration.
- An advantage of the present process over the weld overlay method is that melting of either the shell body or band materials is avoided, thus eliminating the chance of encountering compositional changes in the shell body or bond material and cracking.
- the braze bonding process is considered more compatible for joining a wider variety of shell and band composition than could be assembled by the weld overlay method.
- FIG. 1 is a prospective view of a bonding fixture system utilized in compressing rotating bands onto a shell casing.
- FIG. 2 is an exploded view showing integral parts of the system of FIG. 1.
- FIG. 3 is a view of rotation band bonded to an artillery casing.
- FIG. 4 is a view through lines 4-4 of FIG. 3.
- the present invention is carried out by attaching a brazing filler metal foil interlayer 11 between rotating band 13 and shell casing 15, as shown in FIG. 1.
- the band and filler foil are held in place by means of several beveled compression fingers 17.
- the compression fingers are secured by means of outer ring 19 and beveled inner ring 21.
- Outer ring 19 comprises internally threaded segment 23 which is designed to be compatible with externally threaded segment 25 of beveled inner ring 21, as shown' in FIG. 2.
- Beveled compression fingers 17 are forced against rotating band 13 by the tightening together of outer ring 19 and inner ring 21.
- Brazing was accomplished by positioning the assembled components in a vacuum chamber. The assembly was subjected to a temperature of about 1,500F for a period of one hour. Induction heating was utilized with a coil located in the inside cavity of the shell body. The heating operation was carried out in an inert atmosphere of flowing helium gas through the system. After brazing, the shell body was heat-treated to required strength by aging at 900F for a period of about three hours.
- a fabricated system was obtained in accordance with FIG. 3 having a coil interlayer between the shell casing and rotating band as shown in FIG. 4.
- applicants attached a gilding metal rotating band to an 18 percent by weight Moraging Steel Alloy 155 MM shell body.
- Gilding metal is an alloy having a composition of 95 percent Cu and 5 percent Zn on a weight basis. Gilding metal is commercially available from most suppliers of brass and other copper alloys.
- the brazing filler metal used was a commercially available alloy described in American Welding Specification AWS A5.869 as type B Ag-l8.
- the nominal composition of the alloy is 60% Ag, 30% Cu, and 10% Sn, sold under the tradename of Silvaloy No. 60 by Engelhard Industries, Inc.
- Other filler metal includes BAG-8a which comprises (1) 71% Ag, 27-28% Cu, 0. l50.30% Li, and (2) 71.5% Ag,'28% Cu, and 0.50% Ni.
- brazing d i h i id outer compression i means f temperature is applied from the interior of said shell said clamping fixture onto said inner compression gsegments, whereby said uniform radial pressure is brazing foil and rotating band, without removing
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Pressure Welding/Diffusion-Bonding (AREA)
Abstract
The improvement of attaching rotating bands to shell casings by brazing.
Description
United States Patent Rizzitano et al.
Oct. 1, 1974 ATTACHMENT OF ROTATING BAND TO SHELL CASING BY BRAZING Inventors: Fortunate J. Rizzitano, Needham;
William P. Hatch, Wakefield; Donald C. Buffum, Arlington, all of Mass.
The United States of America as represented by the Secretary of the Army, Washington, DC.
Filed: Nov. 15, 1972 Appl. No.2 306,788
Assignee:
US. Cl 29/493, 29/4745, 29/1.2, 29/1.23, 29/1.3, 102/93 Int. Cl B23k 5/22, B23k 31/02 Field of Search 102/93; 29/12, 1.22, 1.3, 29/501, 493, 474.4, 474.5, 1.23
References Cited UNITED STATES PATENTS 6/1900 Hartmann 29/1.2 7/1937 Mcllvane 29/4744 3,372,464 3/1968 Vincent et a1. 29/474.4 X
FOREIGN PATENTS OR APPLICATIONS 802,637 10/1958 Great Britain 29/1.3
OTHER PUBLICATIONS Brazing Manual, prepared by AWS Committee on Brazing and Soldering, copyright 1963, pp. 166-169, 206-212.
Primary Examiner-Andrew R. Juhasz Assistant ExaminerRonald J. Shore Attorney, Agent, or Firm--Herbert Berl [S 7] ABSTRACT The improvement of attaching rotating bands to shell casings by brazing.
2 Claims, 4 Drawing Figures ATTACHMENT OF ROTATING BAND TO SHELL CASING 'BY BRAZING The invention described herein may be manufactured, used, and licensed by or for the Government for governmental purposes without the payment to us of any royalty thereon.
This invention relates to improved means of attaching rotating bands to artillery shells, and more particulary by brazing the band to the shell casing.
A rotating band is a cylindrical ring of copper or gilding metal positioned around the exterior surface of a projectile. It affords a snug seat for the projectile in the forcing cone and centers the base in the bore. As the projectile moves forward, the soft rotating band is engraved by the bands of the bore. Because of the compression of the band, excess metal flows toward the rear. This flow of metal is taken up by cannelures, or grooves, cut in the rotating band. Since the riflings of the weapon has a helical twist, rotating is imparted to the moving projectile by the engraved rotating band. In addition, the rotating band prevents the escape of the propellant gases forward of the projectile by completely filling the grooves of the rifling.
One method of positioning a rotating band on an artillery shell has been to make a circumferential undercut groove on the outside of a cylindrical shell body. The bottom surface of the groove is knurled or otherwise roughened to enhance the mechanical bond to the shell body. The rotating band is then heated and squeezed into the groove. Another method of manufacture has been to deposit a length of weld overlay of metal on the outside diameter of a shell body.
The present invention comprises the securing of the rotating band to the shell body by a metallurgical bond obtained through a low temperature brazing technique. This provides a stronger, more reliableattachment than the mechanical bond. In addition, the present invention eliminates the need for providing a circumferential gooove on the outside of a cylindrical shell body in order to accomodate the heated rotating band, thus providing a more uniform, stronger shell body wall configuration. An advantage of the present process over the weld overlay method is that melting of either the shell body or band materials is avoided, thus eliminating the chance of encountering compositional changes in the shell body or bond material and cracking. Also, the braze bonding process is considered more compatible for joining a wider variety of shell and band composition than could be assembled by the weld overlay method.
It is an object of the present invention to provide and disclose improved means of bonding a rotating band to a shell casing.
It is a further object of the present invention to provide and disclose improved means of bonding a rotating band to a shell casing which are compatible with the casing materials.
It is a further object of the present invention to provide and disclose improved means of bonding a rotating band to a shell casing which are not detrimental to the strength of the shell casings.
Other objects and a fuller understanding of the invention may be ascertained by referring to the following description and claims taken in conjunction with the accompanying drawing in which:
FIG. 1 is a prospective view of a bonding fixture system utilized in compressing rotating bands onto a shell casing.
FIG. 2 is an exploded view showing integral parts of the system of FIG. 1.
FIG. 3 is a view of rotation band bonded to an artillery casing.
FIG. 4 is a view through lines 4-4 of FIG. 3.
The present invention is carried out by attaching a brazing filler metal foil interlayer 11 between rotating band 13 and shell casing 15, as shown in FIG. 1. The band and filler foil are held in place by means of several beveled compression fingers 17. The compression fingers are secured by means of outer ring 19 and beveled inner ring 21. Outer ring 19 comprises internally threaded segment 23 which is designed to be compatible with externally threaded segment 25 of beveled inner ring 21, as shown' in FIG. 2. Beveled compression fingers 17 are forced against rotating band 13 by the tightening together of outer ring 19 and inner ring 21.
Brazing was accomplished by positioning the assembled components in a vacuum chamber. The assembly was subjected to a temperature of about 1,500F for a period of one hour. Induction heating was utilized with a coil located in the inside cavity of the shell body. The heating operation was carried out in an inert atmosphere of flowing helium gas through the system. After brazing, the shell body was heat-treated to required strength by aging at 900F for a period of about three hours. A fabricated system was obtained in accordance with FIG. 3 having a coil interlayer between the shell casing and rotating band as shown in FIG. 4. In a specific example, applicants attached a gilding metal rotating band to an 18 percent by weight Moraging Steel Alloy 155 MM shell body. Gilding metal is an alloy having a composition of 95 percent Cu and 5 percent Zn on a weight basis. Gilding metal is commercially available from most suppliers of brass and other copper alloys. The brazing filler metal used was a commercially available alloy described in American Welding Specification AWS A5.869 as type B Ag-l8. The nominal composition of the alloy is 60% Ag, 30% Cu, and 10% Sn, sold under the tradename of Silvaloy No. 60 by Engelhard Industries, Inc. Other filler metal includes BAG-8a which comprises (1) 71% Ag, 27-28% Cu, 0. l50.30% Li, and (2) 71.5% Ag,'28% Cu, and 0.50% Ni. In combination with a titanium base alloy containing 6% Al, 6% V, and 2% Sn, a filler metal (BAG-l) sold under the tradename of Easy Flow 45 by Handy and Harmon comprising 45% Ag, 15% Cu, 16% Zn, and 24% Cd was utilized. All the above compositions are on a percent by weight basis.
Although we have described our invention with a certain degree of particularity, it is understood that the present disclosure has been made by way of example and that various filler metal may be utilized in conjunction with the shell casing without departing from the spirit and scope of the invention.
Having thus described our invention, we claim:
1. Method of applying a soft-metal preformed rotating band by brazing to a hard-metal cylindrical artillery shell casing without grooving or deforming said casing, the inner circumference of said preformed rotating band being substantially the same as the outer circumference of said cylindrical shell casing; said method comprising the steps of:
3 4 a. applying an annular foil of brazing material to the applied to said rotating band. and said rotating Outside O Said \mgFOOVBd Shell i g; band is pressed onto said brazing foil and shell casb. placing said rotating band over said annular foil; m and c. placing an annular clamping fixture over said rotatapplying a brazing temperature to Said She" casing ing band, said fixture comprising a plurality of 5 r i ents c F 888 on begm l Outer Ompres said clamping fixture, until said rotating band 15 sion ring means surrounding said segments for applying uniform radial pressure to said rotating brazed to Said Shell f band; 2. Method accordmg to claim 1, wherein said brazing d i h i id outer compression i means f temperature is applied from the interior of said shell said clamping fixture onto said inner compression gsegments, whereby said uniform radial pressure is brazing foil and rotating band, without removing
Claims (2)
1. Method of applying a soft-metal preformed rotating band by brazing to a hard-metal cylindrical artillery shell casing without grooving or deforming said casing, the inner circumference of said preformed rotating band being substantially the same as the outer circumference of said cylinDrical shell casing; said method comprising the steps of: a. applying an annular foil of brazing material to the outside of said ungrooved shell casing; b. placing said rotating band over said annular foil; c. placing an annular clamping fixture over said rotating band, said fixture comprising a plurality of inner compression segments, and outer compression ring means surrounding said segments for applying uniform radial pressure to said rotating band; d. tightening said outer compression ring means of said clamping fixture onto said inner compression segments, whereby said uniform radial pressure is applied to said rotating band, and said rotating band is pressed onto said brazing foil and shell casing; and e. applying a brazing temperature to said shell casing, brazing foil and rotating band, without removing said clamping fixture, until said rotating band is brazed to said shell casing.
2. Method according to claim 1, wherein said brazing temperature is applied from the interior of said shell casing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US00306788A US3838497A (en) | 1972-11-15 | 1972-11-15 | Attachment of rotating band to shell casing by brazing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US00306788A US3838497A (en) | 1972-11-15 | 1972-11-15 | Attachment of rotating band to shell casing by brazing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US3838497A true US3838497A (en) | 1974-10-01 |
Family
ID=23186844
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US00306788A Expired - Lifetime US3838497A (en) | 1972-11-15 | 1972-11-15 | Attachment of rotating band to shell casing by brazing |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US3838497A (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2538532A1 (en) * | 1982-12-24 | 1984-06-29 | Mauser Werke Oberndorf | PROJECTILE BELT |
| US4928368A (en) * | 1989-03-07 | 1990-05-29 | The United States Of America As Represented By The Secretary Of The Army | Method of diffusion bonding copper and titanium alloys to produce a projectile |
| US5048162A (en) * | 1990-11-13 | 1991-09-17 | Alliant Techsystems Inc. | Manufacturing thin wall steel cartridge cases |
| US5106431A (en) * | 1990-11-13 | 1992-04-21 | Alliant Techsystems Inc. | Process for creating high strength tubing with isotropic mechanical properties |
| US6085662A (en) * | 1995-10-03 | 2000-07-11 | Forsvarets Forskningsanstalt | Spin stabilized projectile with metal band |
| US6164521A (en) * | 1999-03-22 | 2000-12-26 | Siemens Westinghouse Power Corporation | Method of fabricating generator main lead bushings |
| US20050167126A1 (en) * | 2004-01-20 | 2005-08-04 | Kenji Uehara | Aeration tine device |
| US20050223882A1 (en) * | 2004-02-10 | 2005-10-13 | Yaich Daniel S | Cannelured frangible cartridge and method of canneluring a frangible projectible |
| CN100358665C (en) * | 2006-03-06 | 2008-01-02 | 哈尔滨工业大学 | Method of Welding Cannonball Belt Using Heterogeneous Copper Twin-wire Argon-arc Overlay Welding |
| US20090126595A1 (en) * | 2006-05-08 | 2009-05-21 | Bae Systems Bofors Ab | Method for manufacturing banded projectiles intended for firing from rifled barrels and projectiles made according to the method, and method for utilizing their special characteristics imparted by the method for manufacture when firing these projectiles |
| US20180364017A1 (en) * | 2015-10-21 | 2018-12-20 | Vista Outdoor Operations Llc | Reduced drag projectiles |
| CN111174634A (en) * | 2020-02-17 | 2020-05-19 | 南京理工大学 | Tandem self-adaptive belt device for improving the firing safety of non-equal rifled artillery |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US651969A (en) * | 1899-11-17 | 1900-06-19 | Krupp Gmbh | Method of securing caps to projectiles. |
| US2086135A (en) * | 1935-06-22 | 1937-07-06 | William J Mcilvane | Method of making a metal-clad rod |
| US2349677A (en) * | 1939-10-31 | 1944-05-23 | Ira J Mccullough | Method of making projectiles |
| US2353693A (en) * | 1942-09-28 | 1944-07-18 | Joseph H Church | Rotating band |
| US2424878A (en) * | 1944-10-28 | 1947-07-29 | Reed Roller Bit Co | Method of bonding a liner within a bore |
| US2841688A (en) * | 1955-10-25 | 1958-07-01 | Chamberlain Corp | Method of applying a copper band to a metallic surface |
| GB802637A (en) * | 1955-02-11 | 1958-10-08 | Naz D Armi Fab | Process for the manufacture of cartridge cases and the like, and cartridge cases and the like obtained through said process |
| US2856856A (en) * | 1955-06-02 | 1958-10-21 | Louis S Michael | Segmented rotating band for artillery projectiles |
| US3025596A (en) * | 1959-06-26 | 1962-03-20 | Combustion Eng | Braze bonding of concentric tubes and shells and the like |
| US3349712A (en) * | 1965-07-22 | 1967-10-31 | Oerlikon Buhrle Holding A G | Sabot projectile |
| US3372464A (en) * | 1965-10-22 | 1968-03-12 | Pan American Petroleum Corp | Method of bonding carbide to steel |
-
1972
- 1972-11-15 US US00306788A patent/US3838497A/en not_active Expired - Lifetime
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US651969A (en) * | 1899-11-17 | 1900-06-19 | Krupp Gmbh | Method of securing caps to projectiles. |
| US2086135A (en) * | 1935-06-22 | 1937-07-06 | William J Mcilvane | Method of making a metal-clad rod |
| US2349677A (en) * | 1939-10-31 | 1944-05-23 | Ira J Mccullough | Method of making projectiles |
| US2353693A (en) * | 1942-09-28 | 1944-07-18 | Joseph H Church | Rotating band |
| US2424878A (en) * | 1944-10-28 | 1947-07-29 | Reed Roller Bit Co | Method of bonding a liner within a bore |
| GB802637A (en) * | 1955-02-11 | 1958-10-08 | Naz D Armi Fab | Process for the manufacture of cartridge cases and the like, and cartridge cases and the like obtained through said process |
| US2856856A (en) * | 1955-06-02 | 1958-10-21 | Louis S Michael | Segmented rotating band for artillery projectiles |
| US2841688A (en) * | 1955-10-25 | 1958-07-01 | Chamberlain Corp | Method of applying a copper band to a metallic surface |
| US3025596A (en) * | 1959-06-26 | 1962-03-20 | Combustion Eng | Braze bonding of concentric tubes and shells and the like |
| US3349712A (en) * | 1965-07-22 | 1967-10-31 | Oerlikon Buhrle Holding A G | Sabot projectile |
| US3372464A (en) * | 1965-10-22 | 1968-03-12 | Pan American Petroleum Corp | Method of bonding carbide to steel |
Non-Patent Citations (1)
| Title |
|---|
| Brazing Manual, prepared by AWS Committee on Brazing and Soldering, copyright 1963, pp. 166 169, 206 212. * |
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2538532A1 (en) * | 1982-12-24 | 1984-06-29 | Mauser Werke Oberndorf | PROJECTILE BELT |
| US4928368A (en) * | 1989-03-07 | 1990-05-29 | The United States Of America As Represented By The Secretary Of The Army | Method of diffusion bonding copper and titanium alloys to produce a projectile |
| US5048162A (en) * | 1990-11-13 | 1991-09-17 | Alliant Techsystems Inc. | Manufacturing thin wall steel cartridge cases |
| US5106431A (en) * | 1990-11-13 | 1992-04-21 | Alliant Techsystems Inc. | Process for creating high strength tubing with isotropic mechanical properties |
| US6085662A (en) * | 1995-10-03 | 2000-07-11 | Forsvarets Forskningsanstalt | Spin stabilized projectile with metal band |
| US6164521A (en) * | 1999-03-22 | 2000-12-26 | Siemens Westinghouse Power Corporation | Method of fabricating generator main lead bushings |
| US20050167126A1 (en) * | 2004-01-20 | 2005-08-04 | Kenji Uehara | Aeration tine device |
| US6945332B2 (en) * | 2004-01-20 | 2005-09-20 | Kashiwatool Corporation | Aeration tine device |
| US20050223882A1 (en) * | 2004-02-10 | 2005-10-13 | Yaich Daniel S | Cannelured frangible cartridge and method of canneluring a frangible projectible |
| US7143679B2 (en) * | 2004-02-10 | 2006-12-05 | International Cartridge Corporation | Cannelured frangible cartridge and method of canneluring a frangible projectible |
| US20070144395A1 (en) * | 2004-02-10 | 2007-06-28 | International Cartridge Corporation | Cannelured frangible projectile and method of canneluring a frangible projectile |
| US7322297B2 (en) | 2004-02-10 | 2008-01-29 | International Cartridge Corporation | Cannelured frangible projectile and method of canneluring a frangible projectile |
| CN100358665C (en) * | 2006-03-06 | 2008-01-02 | 哈尔滨工业大学 | Method of Welding Cannonball Belt Using Heterogeneous Copper Twin-wire Argon-arc Overlay Welding |
| US20090126595A1 (en) * | 2006-05-08 | 2009-05-21 | Bae Systems Bofors Ab | Method for manufacturing banded projectiles intended for firing from rifled barrels and projectiles made according to the method, and method for utilizing their special characteristics imparted by the method for manufacture when firing these projectiles |
| US20180364017A1 (en) * | 2015-10-21 | 2018-12-20 | Vista Outdoor Operations Llc | Reduced drag projectiles |
| US10684108B2 (en) * | 2015-10-21 | 2020-06-16 | Vista Outdoor Operations Llc | Reduced drag projectiles |
| US11378368B2 (en) * | 2015-10-21 | 2022-07-05 | Vista Outdoor Operations Llc | Reduced drag projectiles |
| US20230003496A1 (en) * | 2015-10-21 | 2023-01-05 | Vista Outdoor Operations Llc | Reduced drag projectiles |
| CN111174634A (en) * | 2020-02-17 | 2020-05-19 | 南京理工大学 | Tandem self-adaptive belt device for improving the firing safety of non-equal rifled artillery |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US3838497A (en) | Attachment of rotating band to shell casing by brazing | |
| US4297779A (en) | Method of joining structural elements | |
| US4747225A (en) | Weapon barrel with metallorgically bonded wear resistant liner | |
| US4533806A (en) | Method of manufacturing bimetallic tubes | |
| US3528596A (en) | Apparatus for pulse forming | |
| US5341719A (en) | Multi-layer composite gun barrel | |
| US6536353B1 (en) | Spin-stabilized projectile having a multi-part guide band and method of making the projectile | |
| US3105293A (en) | Brazing dissimilar metal members | |
| GB2530908A (en) | Cartridge casing | |
| US3551972A (en) | Method of manufactring a sabot | |
| US6085662A (en) | Spin stabilized projectile with metal band | |
| US3888295A (en) | Method of bonding an annular band of material to an object | |
| US6600126B2 (en) | Shell with a shell body and a process for the preparation of radially protruding guiding means on a shell body | |
| AU2016230927B2 (en) | Cartridge casing | |
| US12135196B2 (en) | Method for producing a component for a warhead, and warhead | |
| US4732310A (en) | Composite camshaft and method of making the same | |
| US3249050A (en) | Continuous rod warhead | |
| US4324171A (en) | Fluid device and method for making | |
| US2397370A (en) | Manufacture of cartridge cases and the like | |
| US2442369A (en) | Rifling band | |
| IL256732A (en) | Penetrator incorporating a core enclosed in a ductile sheath and manufacturing process for such a penetrator | |
| US3261121A (en) | Gun barrel with explosively welded liner | |
| US4928368A (en) | Method of diffusion bonding copper and titanium alloys to produce a projectile | |
| GB2045903A (en) | Method of manufacturing projectiles | |
| US4372019A (en) | Method of manufacturing projectiles |