EP4298396A1 - Balle métallique de cartouche d'entraînement - Google Patents

Balle métallique de cartouche d'entraînement

Info

Publication number
EP4298396A1
EP4298396A1 EP22708140.3A EP22708140A EP4298396A1 EP 4298396 A1 EP4298396 A1 EP 4298396A1 EP 22708140 A EP22708140 A EP 22708140A EP 4298396 A1 EP4298396 A1 EP 4298396A1
Authority
EP
European Patent Office
Prior art keywords
projectile
wall
cavity
range
nose
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.)
Pending
Application number
EP22708140.3A
Other languages
German (de)
English (en)
Inventor
Donald Meyer
Michael MUSTER
Markus Grünig
Paul Howald
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
RUAG Ammotec AG
Original Assignee
RUAG Ammotec AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by RUAG Ammotec AG filed Critical RUAG Ammotec AG
Publication of EP4298396A1 publication Critical patent/EP4298396A1/fr
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B8/00—Practice or training ammunition
    • F42B8/12—Projectiles or missiles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B12/00—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material
    • F42B12/02—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect
    • F42B12/34—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect expanding before or on impact, i.e. of dumdum or mushroom type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B12/00—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material
    • F42B12/72—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the material
    • F42B12/74—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the material of the core or solid body

Definitions

  • the invention relates to a metallic projectile for practice cartridges, in particular for use on preferably police shooting ranges. Furthermore, the present invention relates to a method and a tool for producing metallic projectiles for practice cartridges, in particular for use on preferably police shooting ranges.
  • a generic projectile for practice cartridges is known from EP 2 498 045 Ai.
  • the projectile of this type consists of a front, arcuate ogive and an adjoining cylindrical area.
  • the known projectile is equipped with an ogive wall, which peripherally delimits an ogive cavity and is formed on the inside with predetermined breaking points in the form of notches and edges.
  • These predetermined breaking points serve as predetermined zones for initiating or promoting material failure. They facilitate folding of the bulk bullet material to form cracks in the skin of the ogive when the bullet strikes a target head on.
  • EP 2 498 045 Ai when the projectile hits its target, it should deform (“fold in”) like a mushroom.
  • WO 2018024754 Ai discloses a metallic projectile for practice cartridges for use on police shooting ranges, which is significantly compressed in the axial direction on impact with a bulletproof vest, for example of protection class I.
  • the bullet has basically proven itself and enjoys great popularity. However, it has been shown that it is desirable to improve or simplify its manufacture without impairing its precision/target ballistics.
  • the inventors of the present invention have found that during the forming production of the bullet from WO 2018024754 Ai, a relatively large amount of forming and deformation work is performed in the ogive area, which leads to hardening of the material in the ogive area. However, this hardening of the material can mean that the practice cartridge projectiles can penetrate protective vests.
  • a metallic practice cartridge projectile is intended in particular for use on police shooting ranges in particular.
  • Projectiles according to the invention can also be referred to as full projectiles, since they are made in one piece in particular are formed from a homogeneous material.
  • the solid projectile is intended in particular for practice cartridges for use in handguns, ie revolvers, submachine guns and/or pistols.
  • a metallic projectile may also be provided for practice rifle cartridges.
  • the projectile is preferably intended for practice cartridges up to a caliber of 20 mm, in particular up to a caliber of 12 mm.
  • Cartridges usually consist of a projectile, a cartridge case, propellant powder and a primer. The projectile is the object fired from the weapon.
  • the weight of a projectile can be between 3 g and 20 g, in particular between 5 g and 15 g, preferably between 5.5 g and 9 g, particularly preferably between 6.0 g and 6.3 g , e.g. 6.1g, which means that it cannot penetrate a protective vest when it is used. Due to their weight and shape, the projectiles used by the authorities in 9 mm caliber Luger cartridges reach muzzle velocities of 340 m/sec. or more.
  • the material of the projectile is preferably lead-free and/or lead-alloy-free.
  • Caliber is commonly referred to as a measure of the outside diameter of projectiles or bullets and the inside diameter of a firearm barrel.
  • projectiles according to the invention are also used for ammunition with a caliber of less than 9 mm, less than 7 mm or at most 5.6 mm.
  • full jacket bullets which generally consist of a bullet jacket made of a deformable material such as tombac, and a generally pressed bullet core arranged therein, which is produced separately from the bullet jacket, bullets do not have a separate jacket.
  • the projectile is made in one piece.
  • the projectile can have an in particular ogive-shaped projectile nose with a central cavity and a projectile rear.
  • the rear end of the projectile can essentially be made of solid material and/or can be configured as a solid cylinder at least in sections.
  • the maximum outer diameter, which determines the caliber of the bullet, can be present in the area of the bullet tail.
  • the bullet tail for example, the guide band, which in particular is at least partially cylindrical, have for guiding the deformation projectile in the gun barrel.
  • the guide band can be designed in such a way that it engages in a tension field profile of the gun barrel, which serves in particular to impart a twist to the deformation bullet as it slides along inside the gun barrel in order to stabilize the bullet trajectory.
  • the projectile nose can have a nose wall delimiting the cavity, which has an ogive-shaped contour at least in sections on its outside.
  • a phasing section may be provided at the tail end of the bullet tail to facilitate insertion of the hollow point bullet into a neck of a cartridge case and/or to provide a particularly aerodynamic tail end (commonly referred to as a "boat-tail").
  • the nose of the projectile in particular its ogive section, can have an ogive wall and a rotationally symmetrical ogive cavity which is peripherally delimited by the ogive wall.
  • the ogive cavity allows the bullet to undergo compression deformation upon impact with a target or other resistance.
  • the projectile according to the invention When the projectile according to the invention is compressed, its kinetic energy is quickly converted into deformation energy.
  • the projectile tip is preferably deformed essentially only in the axial direction relative to the rear section, which is in particular cylindrical. In particular, when the projectile hits a flat object perpendicularly, there is preferably no deformation of the projectile tip in the radial direction beyond the diameter of the undeformed cylinder section.
  • the ogive cavity is preferably empty, ie filled only with ambient air.
  • An inner contour encompassing the ogive cavity, which is defined by the ogive wall, is preferably formed without steps and/or without interruptions in the circumferential direction and/or has exclusively rounded edges.
  • An ogive outer side defined by the ogive wall is preferably formed without steps in the circumferential direction and/or has a constant wall thickness circumferentially, in particular over the entire circumference.
  • the projectile is made of iron, in particular soft iron.
  • iron projectiles according to the invention are particularly well suited to being produced by means of solid forming, in particular by cold forming, such as deep drawing or extrusion, as an alternative to machining.
  • Iron also has the advantage that it can be post-treated better than the projectile materials previously used, in particular thermally post-treated, such as soft annealing.
  • the projectile is made of steel.
  • the carbon content can be more than 0.05%. It has been found that increasing the carbon content increases the hardness and tensile strength of the bullet, which has a beneficial effect on bullet ballistics. Furthermore, it has been found that the carbon content according to the invention protects the projectile against corrosion. Furthermore, the increased carbon content also helps to limit diffusion between the gun barrel and the bullet when it is fired from a gun.
  • the carbon content can be in the range from 0.06% to 1.14%, in particular in the range from 0.08% to 0.12%. Such carbon areas have proven to be particularly advantageous in terms of ballistics. In particular, it has been found that if the carbon content is too high, the brittleness of the bullet body is increased too much, which has an adverse effect on the manufacture and formability of the bullet.
  • the projectile according to the invention is made from a material which, in addition to iron, has at least one other transition metal, for example selected from the group containing manganese and copper, in particular in a mass fraction of 0.01 96 to 1.2 96 or 0 .3 96 to 196.
  • the material of the projectile can contain at least one further additive selected from the carbon group, the nitrogen group and/or the oxygen group.
  • the at least one additive can be a semimetal.
  • the at least one additive has a weight percentage of at least 0.01-96 to at most 0.48-96.
  • the iron of the bullet has a manganese content of 0.01% to 0.8%, in particular 0.396 to 0.6% of the manganese.
  • the iron has a silicon content of less than 3.596, in particular less than 0.496 or less than 0.396.
  • the iron has a phosphorus content in the range from 0.0196 to 0.0496, in particular in the range from 0.0296 to 0.0396.
  • the iron has a sulfur content in the range from 0.0196 to 0.0496, in particular in the range from 0.0296 to 0.0396.
  • the iron has a copper content of less than 0.496, in particular less than 0.396 or less than 0.2596.
  • the bullet can be made of Saarstahl C10C.
  • the projectile does not contain any lead.
  • a metallic practice cartridge projectile is provided in particular for use on police shooting ranges in particular.
  • the projectile can be designed according to one of the aspects described above or exemplary embodiments.
  • Projectiles according to the invention can also be referred to as solid projectiles, since they are formed in one piece, in particular from a homogeneous material.
  • the solid projectile is intended in particular for practice cartridges for use in handguns, ie revolvers, submachine guns and/or pistols.
  • a metallic projectile may also be provided for practice rifle cartridges.
  • the projectile is preferably intended for practice cartridges up to a caliber of 20 mm, in particular up to a caliber of 13 mm.
  • Cartridges consist of usually consists of a bullet, a cartridge case, propellant powder and a primer.
  • the projectile is the object fired from the weapon.
  • the weight of a projectile can be between 3 g and 20 g, in particular between 5 g and 15 g, preferably between 5.5 g and 9 g, particularly preferably between 6.0 g and 6.3 g , e.g. 6.1g, which means that it cannot penetrate a protective vest when it is used. Due to their weight and shape, the projectiles used by the authorities in 9 mm caliber Luger cartridges reach muzzle velocities of 340 m/sec. or more.
  • the material of the projectile is preferably lead-free and/or lead-alloy-free.
  • Caliber is commonly referred to as a measure of the outside diameter of projectiles or bullets and the inside diameter of a firearm barrel.
  • projectiles according to the invention are also used for ammunition with a caliber of less than 9 mm, less than 7 mm or at most 5.6 mm.
  • full jacket bullets which generally consist of a bullet jacket made of a deformable material such as tombac, and a generally pressed bullet core arranged therein, which is produced separately from the bullet jacket, bullets do not have a separate jacket.
  • the projectile is made in one piece.
  • the projectile comprises an in particular ogive-shaped projectile nose with a central cavity and a projectile rear.
  • the rear end of the projectile can essentially be made of solid material and/or can be configured as a solid cylinder at least in sections.
  • the maximum outer diameter, which determines the caliber of the bullet, can be present in the area of the bullet tail.
  • the rear end of the projectile can have, for example, the guide band, which in particular is cylindrical at least in sections, for guiding the projectile in the gun barrel.
  • the guide band can be designed in such a way that it engages in a tension-field profile of the gun barrel, which serves in particular to impart a twist to the bullet as it slides along inside the gun barrel in order to stabilize the bullet trajectory.
  • the projectile nose can have a nose wall delimiting the cavity, which has an ogive-shaped contour at least in sections on its outside.
  • a phasing section may be provided at the tail end of the bullet tail to facilitate insertion of the hollow point bullet into a neck of a cartridge case and/or to provide a particularly aerodynamic tail end (commonly referred to as a "boat-tail").
  • the nose of the projectile in particular its ogive section, can have an ogive wall and a rotationally symmetrical ogive cavity which is peripherally delimited by the ogive wall.
  • the ogive cavity allows the bullet to undergo compression deformation upon impact with a target or other resistance.
  • the projectile according to the invention When the projectile according to the invention is compressed, its kinetic energy is quickly converted into deformation energy.
  • the projectile tip is preferably deformed essentially only in the axial direction relative to the rear section, which is in particular cylindrical.
  • the ogive cavity is preferably empty, i.e.
  • An inner contour encompassing the ogive cavity, which is defined by the ogive wall, is preferably formed without steps and/or without interruptions in the circumferential direction and/or has exclusively rounded edges.
  • An ogive outer side defined by the ogive wall is preferably formed without steps in the circumferential direction and/or has a constant wall thickness circumferentially, in particular over the entire circumference.
  • the bullet can be manufactured without machining.
  • the projectile can also have an intermediate production state, in which the projectile is present as an intermediate, in which the jacket wall forming the projectile nose on the finished projectile extends essentially constantly in a straight line, in particular having a constant inner and/or outer diameter.
  • a front wall delimiting the cavity circumferentially is included on its inside and/or outside provided at least one circumferential predetermined buckling point at which the wall thickness of the bow wall is suddenly reduced.
  • the predetermined buckling point results in a predefined deformation in the target ballistics, namely a buckling of the bow wall at the predetermined buckling point.
  • the goal of increasing the diameter as quickly and as large as possible (“flattening") can be achieved.
  • the deformation behavior can be deliberately set via the position of the predetermined buckling point in relation to the longitudinal direction of the bullet and via the extent, in particular its radial and/or axial dimension, of the predetermined buckling point.
  • the effect of a predetermined buckling point arranged on the outside improves if the predetermined buckling point is positioned as far forward in the ogive area, in particular as close as possible to the bullet tip.
  • a torque can then arise, which has a positive effect on flattening.
  • the deformation can take place in such a way that although the diameter of the deforming projectile does not increase faster, the deformation energy is minimized so that the desired rapid flattening of the projectile and thus an increase in diameter occurs when it hits a target.
  • the abrupt reduction in wall thickness also ensures that the predetermined buckling point is as reactive as possible, i.e.
  • the predetermined buckling point is arranged on the outside of the front wall, it has also proven to be advantageous that the outside predetermined buckling point represents a security-relevant haptic recognition feature for the user.
  • the front wall is provided with at least two or three predetermined buckling points arranged at a distance from one another in the longitudinal direction of the projectile.
  • the at least two or at least three predetermined buckling points are arranged at a constant distance, starting from the bottom of the cavity at the rear to the tip of the projectile. Due to the plurality of predetermined flexing points, a step-by-step flexing behavior of the projectile can be achieved in that when the projectile hits a target, starting from the tip of the projectile, the predetermined flexing points become active one after the other, i.e. the front wall successively bends in sections or in stages at the predetermined flexing points that adjoin in the longitudinal direction of the projectile. This way is a particularly effective Axial compression of the bullet achievable. In other words, during the deformation there is a gradual failure of the outer shape of the projectile nose, with it being ensured in particular that no disassembly occurs.
  • Wall thickness jump in the range from 1% to 5%, in particular in the range from 2.5% to 3.5%, of the caliber diameter. Alternatively or additionally lies the
  • Wall thickness jump in the range of 15% to 25%, in particular at about 20% of the wall thickness of the front wall at the axial height of the predetermined buckling point.
  • the above-mentioned preferred dimensions for the change in wall thickness have proven to be optimal with regard to the deformation behavior, in particular the axial compression of the projectile when it hits a target, without the stability of the projectile having to accept too great a disadvantage.
  • the target thickness can be realized, for example, as a groove, notch or edge and/or can be produced by cold forming or alternatively by a machining manufacturing process.
  • the predetermined buckling point has a sharp-edged base that recedes radially inwards if the predetermined buckling point is arranged on the outside of the front wall. If the predetermined buckling point is arranged on the inside of the front wall, the predetermined buckling point can have a base that protrudes radially outwards.
  • the base which delimits the predetermined buckling point at the rear, can be arranged transversely with respect to the longitudinal direction of the projectile, in particular at an obtuse angle thereto.
  • the angle of the base of the predetermined buckling point in relation to the longitudinal axis of the projectile is in the range from 50° to 90°, in particular in the range from 60° to 85° or in the range from 70° to 85°.
  • the predetermined buckling point can have a flank oriented at an acute angle in relation to the longitudinal direction of the projectile.
  • the angle can be, for example, in the range from 0 ° to 40°, in particular in the range from 5° to 35 ° or around 30°.
  • the predetermined buckling point can be shaped in such a way that, regardless of its positioning in relation to the longitudinal direction/axis of the projectile, the rear-side predetermined buckling point base has a significantly lower ratio of axial longitudinal extent to radial dimensions compared to the front-side predetermined buckling point flank.
  • a metallic practice cartridge projectile in particular according to one of the preceding claims, in particular for use on police shooting ranges in particular, for example with a caliber of less than 20 mm , in particular less than 13 mm or at most 9 mm.
  • the projectile can be designed according to one of the aspects described above or exemplary embodiments. In this respect, the features described above can be transferred independently of one another to the independent aspect of the present invention described below.
  • the projectile comprises an in particular ogive-shaped projectile nose with a central cavity and a projectile rear.
  • projectile nose With regard to preferred configurations of the projectile nose, the cavity and the projectile tail, reference can be made to the preceding descriptions.
  • a front wall delimiting the cavity circumferentially tapers from a rear cavity base continuously towards the tip of the projectile and/or is formed in a step-like manner. Due to the tapering wall thickness of the nose wall and/or its step-like design, the material hardening associated with the cold-forming production of the projectile in the projectile nose area, especially in the ogive area, which is undesirable in particular because of its increased penetration capacity, can be compensated for.
  • the tapering of the material thickness or the step-like formation of the projectile nose allows for weakening on the nose side, so that it can be reliably ensured, for example, that the projectile is a protective vest cannot penetrate.
  • thermal post-treatment steps such as soft annealing.
  • a deformation of the projectile can be achieved in such a way that it is as reliable and/or reactive as possible as a result of the projectile impacting a target a reduced sectional stress is generated, so that the penetrating power of the bullet is reduced.
  • the cavity extends from a premature opening toward a rear cavity floor.
  • the wall thickness of the front wall at the axial height of the front opening can be in the range of 10% to 50% of the wall thickness of the front wall at the axial height of the bottom of the cavity.
  • the reference wall thickness of the cavity base can be, for example, that wall thickness which is to be understood at the transition from the concave cavity base into the adjoining front side wall, which extends in particular in the longitudinal direction of the projectile.
  • the nose wall Due to the tapering wall thickness in the direction of the bullet tip, the nose wall is increasingly weakened in a targeted manner in the area in which the bullet is increasingly material-hardened due to increased deformation.
  • each step is characterized by a wall thickness jump in the range from 1% to 5%, in particular in the range from 2.5% to 3.5% of the caliber diameter and/or in the range from 15% to 25%, in particular from about 20 %, of the wall thickness of the bow wall at the axial height of the step.
  • the dimensioning of the wall thickness step affects the degree of deformation and the responsiveness to the impact energy of the bullet.
  • a metallic practice cartridge projectile in particular for use in police shooting ranges in particular, in particular with a caliber of less than 20 mm, less than 13mm or less than 9mm.
  • the projectile can be designed according to one of the aspects described above or exemplary embodiments. In this respect, the features described above can be transferred independently of one another to the independent aspect of the present invention described below.
  • the projectile comprises an in particular ogive-shaped projectile nose with a central cavity.
  • Projectile nose and cavity can be designed according to one of the aspects described above or exemplary embodiments.
  • the wall thickness of a front wall delimiting the cavity at the tip of the projectile is in the range from 0.1 mm to 2 mm, in particular in the range from 0.2 mm to 1.5 mm.
  • the wall thickness at the bullet tip must not be less than 0.05 mm.
  • the wall thickness at the tip of the bullet should be as thin as possible, but as thick as necessary.
  • the stressed areas represent the optimum in terms of manufacturability, target ballistics (deformation behavior) and stability of the projectile.
  • 0.5 mm, in particular 0.2 mm can be set as the upper limit for the wall thickness.
  • the projectile tip is formed by a circumferential, in particular flat, ring, in particular with a flat annular surface, the wall thickness or radial dimension of which is less than 2 mm, in particular less than 1.5 mm, in particular less than 1 mm, less than 0, 5 mm or even smaller than 0.2 mm. Furthermore, it is possible for the wall thickness to be less than 0.8 mm and/or greater than 0.5 mm.
  • a metallic practice cartridge projectile in particular according to one of the preceding ones Claims, in particular for use on police shooting ranges in particular, for example with a caliber of less than 20 mm, in particular less than 13 mm or at most 9 mm.
  • the projectile can be designed according to one of the aspects described above or exemplary embodiments. In this respect, the features described above can be transferred independently of one another to the independent aspect of the present invention described below.
  • the projectile comprises an in particular ogive-shaped projectile nose with a central cavity and a projectile rear.
  • projectile nose With regard to preferred configurations of the projectile nose, the cavity and the projectile tail, reference can be made to the preceding descriptions.
  • the cross section of the cavity is point-symmetrical and deviates from a circular shape.
  • a front wall peripherally delimiting the cavity has a point-symmetrical internal cross section that deviates from a circular shape.
  • the deformation behavior of the projectiles can be set or determined via the interior geometry of the cavity.
  • the cavity can have a polygonal, torx-like or other point-symmetrical shape.
  • the cavity is massively formed using a stamp, in particular a press stamp, whose outer geometry defines the inner geometry of the cavity. In other words, the inner cross-section of the cavity is pressed into the projectile, in particular produced without machining production steps.
  • a metallic practice cartridge projectile in particular according to one of the preceding claims, in particular for use on police shooting ranges in particular, for example with a caliber of less than 20 mm , in particular less than 13 mm or at most 9 mm.
  • the projectile can be designed according to one of the aspects described above or exemplary embodiments. In this respect, the features described above are independent transferable from each other to the independent aspect of the present invention described below.
  • the projectile comprises an in particular ogive-shaped projectile nose with a central cavity and a projectile rear.
  • projectile nose With regard to preferred configurations of the projectile nose, the cavity and the projectile tail, reference can be made to the preceding descriptions.
  • a front wall delimiting the cavity has at least one edge oriented in the longitudinal direction of the projectile on its inside and/or outside.
  • the edge can be triangular, U-shaped and/or rounded in cross-section.
  • the inventors of the present invention have found that the deformation behavior of the projectiles can also be advantageously influenced, to put it simply, by means of axial edges, in particular the desired compression to reduce the cross-sectional load can be improved.
  • the axial edges also cause wall thickness reductions in the front wall, which lead to local weakening, so that the front wall is reliably deformed when the projectile hits a target.
  • the edge is formed as a notch, in particular produced by machining production steps, and/or the front wall has a plurality of edges arranged at a particularly uniform distance from one another in the circumferential direction.
  • the edges are arranged point-symmetrically to each other.
  • the front wall has on its inside or outside, or both on the inside and on the outside, at least one indentation oriented in the circumferential direction, in particular a completely circumferential indentation.
  • at least two or at least three indentations are provided, which are in particular arranged at a uniform distance from one another.
  • the notches can act as predetermined breaking points, for example, and can be machined into the wall.
  • the notches can be introduced and/or arranged in such a way that the deformation behavior of the bullet can be adjusted.
  • the notch has a notch depth of at most 60% of the wall thickness of the front wall.
  • the wall thickness at the axial height of the respective notch can be used as a reference.
  • the notch depth can be at least 10% or at least 15% or at least 20% of the wall thickness of the bow wall at the axial height of the corresponding notch.
  • the cross section of the notch can be of any desired design.
  • the inventors of the present invention have also found that the deformation behavior can be further adjusted, in particular finely tuned, via the cross section of the notch.
  • the notch has a front, elongated flank, which merges into a short, sharp notch base, particularly at an acute angle.
  • the base of the notch can have a larger radial and axial dimension.
  • the flank has a greater axial than radial dimension.
  • the metal or iron projectile body is subjected to a heat treatment process, in particular an annealing step.
  • the temperature can be over 600°C, in particular 650°C.
  • the heat treatment process can be performed for a period of several hours, about 4.5 hours.
  • the deformation behavior of the projectile can be changed or adjusted as a result of the heat treatment process, in particular the post-heat treatment step.
  • the heat treatment makes it possible, for example, to compensate for, in particular to neutralize, the hardening of the material that occurs as part of the production of the bullet nose, in particular by cold forming, in particular during the ogive shaping.
  • the influence of the heat treatment process on the setting of the deformation behavior can be influenced by the parameters temperature or duration.
  • the production does not require a heat treatment process.
  • the projectile, in particular the projectile nose is not annealed, in particular not soft annealed.
  • the projectile is made of iron, in particular soft iron, for example steel.
  • a carbon content can, for example, be more than 0.05% and/or at most 1.14% or 0.12%.
  • the central cavity of the projectile is produced by solid forming, in particular by cold forming such as deep drawing or extrusion.
  • the entire projectile is produced by means of solid forming, in particular by cold forming, such as deep-drawing or extrusion.
  • a further aspect of the present invention which can be combined with the preceding aspects of the exemplary embodiments, is a metallic intermediate for manufacturing a practice cartridge projectile designed in particular according to one of the aspects or exemplary embodiments described above, in particular for use on police shooting ranges in particular, consisting of a ductile body or blank, for example made of iron, provided.
  • the base body can be made of a homogeneous metal material such as copper, copper alloy, brass, preferably iron, such as steel.
  • the base body is preferably made of a lead-free material.
  • the base body can be produced from a cut-off blank, which can in particular be formed from a cut-off ductile metal material.
  • the base body is cold-solidly formed by means of pressing to form the intermediate, in particular by means of pressing, deep-drawing or extrusion, for example using a punch-die arrangement.
  • the base body or blank to be formed into the intermediate also forms a cylindrical, solid base end section and an adjoining press end section as an intermediate a central press depression introduced by pressing, which can form the front projectile cavity present on the final projectile.
  • the base end portion may include a substantially planar face to face the projectile case.
  • the pressing end section which is diametrically opposite the base end section in the axial direction of the projectile, has a wall delimiting the pressing depression in order to form a projectile nose that is in particular ogivoid in shape.
  • the wall of the pressing end section has a stepped contour on the inside and/or outside.
  • the stair contour is produced by cold forming, in particular by means of the punch and die arrangement.
  • the stair contour can be formed, for example, by a particularly uniform sequence of steps, particularly when viewed in the longitudinal direction of the floor.
  • the wall progressively tapers toward the open end of the swage section diametrically opposite the planar base surface of the solid base end section.
  • the stepped contour can be achieved in a simple manner in terms of production technology, on the one hand, in that the wall thickness of the wall increasingly tapers towards the tip of the bullet, so that the material hardening increases towards the tip of the bullet, which results in the production, in particular cold-forming production, of the bullet nose , balanced or neutralized. Furthermore, the stepped contour has the effect that in the final projectile there are predetermined kinks or notches or indentations in the projectile nose wall, at which the nose wall is further weakened, in particular to the effect that when the projectile hits a target, it snaps or folds in, in particular axial compression , which accompanies wall.
  • the stair contour has at least two or at least three steps arranged at a constant distance from one another in the longitudinal direction of the floor.
  • the steps can be implemented in the same dimensioning.
  • a radial shoulder of the steps can be dimensioned the same in relation to the wall thickness prevailing at the respective axial height.
  • a wall thickness jump is formed at each step, which is in the range from 1% to 5%, in particular in the range from 2.5% to 3.5% of the caliber diameter of the spinal projectile and/or in the range of 15% to 25%, in particular around 20%, of the wall thickness of the bow wall at the axial height of the respective stage.
  • the intermediate can also be designed in such a way that its maximum outer diameter, which is present, for example, in the area of the rear base end section, essentially corresponds to the final caliber diameter of the final projectile.
  • the step contour has at least one step.
  • the at least one step can have a step base that is recessed radially inwardly or protrudes radially outwards and is oriented essentially transversely to the longitudinal direction of the intermediate and/or a step flank that is essentially perpendicularly adjoining it.
  • the at least one step can be designed to form the predetermined buckling point, notch or notch in the final storey.
  • a longitudinal extent of the step flank is greater than a radial extent of the step base.
  • the longitudinal extent of the step flank can, for example, be at least 50%, 75% or at least 100% greater than the radial extent of the step base.
  • the press depression extends from a front-side opening, which in particular lies diametrically opposite the flat end face of the base end section, without forming an undercut in the direction of a rear-side, in particular flat press depression base.
  • the pressing cavity has a constant cylindrical cross section.
  • the cross section can, for example, be rotationally symmetrical and deviate from a round shape, for example polygonal, torque-like, or shaped in some other way.
  • the intermediate has an essentially constant outer diameter.
  • the outer diameter is selected or manufactured in such a way that it essentially corresponds to the caliber of the final projectile.
  • a further aspect of the present invention which can be combined with the preceding aspects of the exemplary embodiments, is a metallic intermediate for producing a, in particular according to one of the previously described Aspects or exemplary embodiments of a training cartridge projectile are provided, in particular for use on police shooting ranges in particular, consisting of a ductile base body or blank, for example made of iron.
  • the base body can be made of a homogeneous metal material such as copper, copper alloy, brass, preferably iron, such as steel.
  • the base body is preferably made of a lead-free material.
  • the base body can be produced from a cut-off blank, which can in particular be formed from a cut-off ductile metal material.
  • the base body is cold-solidly formed by means of pressing to form the intermediate, in particular by means of pressing, deep-drawing or extrusion, for example using a punch-die arrangement.
  • the base body or blank to be formed into the intermediate forms as an intermediate a cylindrical, solid base end section and an adjoining press end section with a central press indentation introduced by pressing, which can form the front-side projectile cavity on the final projectile.
  • the base end portion may include a substantially planar face to face the projectile case.
  • the pressing end section which is diametrically opposite the base end section in the axial direction of the projectile, has a wall delimiting the pressing depression in order to form a projectile nose that is in particular ogivoid in shape.
  • the pressing end section has a wall which delimits the pressing depression and has an essentially constant wall thickness in order to form a projectile nose that is in particular ogivoid in shape.
  • the constant wall thickness of the press cavity wall has proven to be advantageous in particular with regard to a cost-effective and simple production of the final projectile. Furthermore, it was found that by forming a constant wall thickness and the associated avoidance of weakening, tapering, which could have the effect of predetermined breaking points or the like in the final projectile, a fragmentation of the projectile in the sense of a fragmentation projectile can be avoided.
  • the press cavity wall can have a ring-cylindrical structure or a Have sleeve structure with constant internal and external dimensions. Furthermore, the extent of the press cavity wall can be parallel to the longitudinal axis of the intermediate, in particular concentric to its central axis.
  • a further aspect of the present invention which can be combined with the preceding aspects and exemplary embodiments, is a method and also a tool for producing a projectile designed according to one of the preceding claims, in particular by means of a metallic intermediate in particular according to the invention according to one of the aspects described above or exemplary embodiments, in particular in a punch-die arrangement provided.
  • the features described above can be transferred independently of one another to the independent aspect of the present invention described below.
  • FIG. 1 shows a sectional view of an exemplary embodiment of an intermediate according to the invention for manufacturing a practice cartridge projectile in particular according to the invention
  • FIG. 2 shows a sectional view of a training cartridge projectile according to the invention produced from the intermediate according to FIG. 1;
  • FIG. 3 shows a further exemplary embodiment of an intermediate according to the invention
  • FIG. 4 shows a sectional view of a training cartridge projectile according to the invention produced from the intermediate according to FIG. 3;
  • FIG. 5 shows a schematic production step for producing a projectile according to the invention
  • FIGS. 6-8 are schematic sectional views of FIG. 5; Figures 9 - 18 perspective views of exemplary embodiments of intermediates for the manufacture of practice cartridge projectiles;
  • FIGS. 19-23 show a schematic stage plan for the production of an exemplary embodiment of a practice cartridge projectile according to the invention, starting from a blank;
  • FIGS. 24-26 show a further schematic stage plan for the production of a further exemplary embodiment of a projectile according to the invention.
  • Figures 27 - 32 schematic side views of exemplary embodiments of training cartridge projectiles according to the invention.
  • Projectiles shown in the figures are practice cartridge projectiles, generally indicated by the reference number 1, particularly for police shooting ranges, for example with a caliber of less than 20 mm, in particular less than 13 mm or at most 9 mm.
  • the projectiles are made of metal, preferably iron. The same applies to the intermediate products and intermediates in the production process when producing the projectiles 1 according to the invention.
  • FIG. 1 shows a schematic sectional view of an exemplary embodiment of an intermediate 10 according to the invention.
  • the intermediate 10 generally represents a preliminary stage or an intermediate product in the production of practice cartridge projectiles 1 according to the invention from blanks, for example in the form of solid metal bodies.
  • the intermediate 10 basically consists of a ductile base body 47 or blank section, for example made of iron, which Pressing to form the intermediate 10 is cold massive.
  • the intermediate 10 has a cylindrical base end section 49 and a pressing end section 51 adjoining it.
  • the base end portion 49 has a flat face 53 which forms the floor 45 in the final floor 1 ( Figure 2).
  • the pressing end portion 51 includes a central one formed by pressing Press depression in the form of a cavity 5 and a jacket wall 25 delimiting the cavity 5, which is designed to be shaped in particular ogivoid to form the projectile nose 27 (FIG. 2).
  • the base end portion 49 essentially forms the bullet tail 39 ( Figure 2).
  • the pressing end portion 51 is open to one side of the intermediate, namely the opposite side with respect to the end face 53 .
  • the cavity 5 extends from a front opening 53 to a cavity base 55 on the back.
  • the intermediate 10 according to FIG.
  • the stair contour comprises two steps 59 which are arranged at a distance from one another or are arranged one behind the other in relation to the intermediate longitudinal direction.
  • each step 59 which has a step base 61 set back essentially radially inwards and a step flank 63 oriented essentially in the longitudinal direction of the intermediate 10, there is a reduction in the wall thickness of the intermediate 10 in the region of the pressing end section 51.
  • the jump in wall thickness at each step at the axial height of the respective step is in the range of 15% to 25% of the wall thickness of the wall 25 at the axial height of the step.
  • the intermediate 10 can be manufactured entirely by cold forming, in particular pressing, for example in a punch and die arrangement (not shown), in particular without machining production steps.
  • FIG. 2 a schematic sectional view of a training cartridge projectile according to the invention, which is manufactured according to the intermediate 10 from FIG. 1, is shown.
  • the tail 39 made of the base end portion 49 includes a bullet formed in the floor 45
  • Centering recess 21 which is substantially triangular in cross section.
  • a circumferential chamfer 43 can also be introduced.
  • the rear end of the projectile 39 is made of solid material and has at least a section of a guide band 89 (FIG. 27; not shown in FIG. 2) for engaging in the pull-field profile in the gun barrel.
  • the projectile nose 27 formed from the pressing end section 51 is hollow in contrast to the projectile tail 39 and comprises a projectile cavity 31 and a projectile cavity 31 circumferentially delimiting the nose wall 33 which is formed from the wall 25 of the intermediate 10 .
  • the front wall 33 is in particular ogivoid in shape and ends in a projectile tip 35 which delimits the one front opening 63 which, however, can also be essentially, in particular completely, closed.
  • the front wall 33 can taper essentially continuously in the direction of the projectile tip 35 .
  • the cavity 31 can, for example, have a cavity base 65 which is flat, at least in sections, viewed transversely to the longitudinal extent of the projectile 1 and which can also be concave in shape.
  • the concave or flat cavity base area 65 opens into an outer cavity base area 67 with a greater curvature compared to the cavity base section 65.
  • the concavely curved outer cavity base section 67 merges at a transition 69 into a cavity side wall 71 which is substantially at or at an acute angle with respect to the Bullet longitudinal direction is oriented.
  • the front wall 33 can, for example, in the area of the front opening 35 have a wall thickness in the range of 10% - 50% of the wall thickness in the front wall 33 at the axial height of the cavity base 65 in the area of the transition 69 between the cavity and the side wall 71 and the outer cavity base section 67.
  • the wall thickness a in Figure 2 indicates the wall thickness in the area of the front opening 35 and the reference symbol b indicates the wall thickness in the area of the transition 69 of the front wall 33.
  • the front wall 33 there are two predetermined kinks or notches 73 arranged at a distance from one another in the longitudinal direction of the projectile.
  • the predetermined kinks or notches 73 are the result of the stepped contour 57 of the intermediate 10.
  • the deformation of the intermediate 10 to form the projectile 1, with the casing wall 25 being bent increasingly radially inward in the direction of the projectile tip 35 to form the projectile nose and in particular the nose wall 33 result the predetermined kinks or notches 73 shown schematically in FIG. 2, which, for example, have a V-shaped or triangular cross section.
  • the wall thickness of the front wall 33 decreases abruptly at the predetermined buckling points 73 .
  • the reduction in wall thickness is, for example, in the range of 1% to 5% of the caliber diameter and/or in the range of 15% to 20% of the wall thickness of the bow wall 33 at the axial height of the predetermined bending point 73.
  • the predetermined buckling point 73 comprises a radially inwardly receding base 75, which is essentially responsible for the reduction in wall thickness, and an elongated flank 77 oriented at an acute angle in relation to the longitudinal axis of the bullet.
  • the flank 77 merges continuously into the outer contour of the front wall 33 .
  • the flank 77 has a significantly greater extent in the longitudinal direction of the projectile 1 than transversely thereto in the radial direction.
  • the base 55 is essentially oriented in the radial direction and thus has only a slight axial extent, if at all, in the longitudinal direction of the projectile.
  • the base 75 can also have an axial component in its longitudinal extent, which results from the radially inward bending of the front wall 33 .
  • FIGS. 3 and 4 Further exemplary embodiments of the present invention are shown in FIGS. 3 and 4, with FIG. 3 showing an alternative embodiment of an intermediate 10 according to the invention and FIG.
  • the main difference between the intermediate 10 from FIG. 3 and the intermediate 10 from FIG. 1 is that the stepped contour 57 is provided on the inside in the cavity 5 .
  • the step contour 57 on the inside can be produced using a correspondingly shaped, stepped press stamp 3 (FIG. 5), in particular using a stamp and die arrangement (not shown).
  • the individual steps 59 of the inside stair contour 57 comprise a step base 61 protruding or protruding radially outwards and a step flank 63 adjoining it, which in turn is oriented essentially in the longitudinal direction of the intermediate.
  • the front wall 25 is formed in a step-like manner analogously to the embodiment according to FIG.
  • predetermined kinks or notches 73 on the inside are produced from the inside stair contour 57, which again provided circumferentially and where the wall thickness of the bow wall 33 decreases abruptly. It should be clear that a combination of outside and inside stair contours 57 on the intermediate is equally possible in order to produce inside and outside predetermined kinks or notches 73 in the bow wall 33 on the finished floor 1 .
  • the effect of the axial compression of the projectile 1 upon impact with a target can be increased, since the nose wall is weakened on both the inside and the outside in such a way that predefined predetermined buckling points are formed at which the nose wall flexes in a targeted manner on impact with a target and folds up.
  • FIG. 5 shows diagrammatically a manufacturing step, namely a forging step, in the manufacture of projectiles according to the invention, which are generally identified by the reference numeral 1.
  • a manufacturing step namely a forging step
  • FIGS. 6 to 8 and 5 one possibility is shown of producing bullet internal geometries of any desired cross-sectional shape in a manner that is particularly simple in terms of production technology. This is achieved in that the final cavity geometry or its cross section can be generated by means of a stamping tool 3, which is pressed axially into an intermediate or a blank forming the projectile 1 to form a central, front cavity 5.
  • FIGS. 1 and the cavity are point-symmetrical in cross-section, with a circular cross-sectional shape resulting according to FIG. 8 and polygonal cross-sectional shapes in FIGS.
  • the cavity cross-section 5 is essentially constant when viewed in the longitudinal direction of the projectile.
  • the polygonal interior geometry of the cavity there are axial edges 7 which are formed along the entire longitudinal extension of the cavity 5 on an inside of a front wall 9 surrounding the cavity 5 .
  • a general advantage of the present invention consists in the fact that the projectile geometry can be adapted very flexibly during solid forming.
  • any inner geometries can be produced in a simple manner by only having to adapt the outer shape or contour of the elongated, essentially cylindrical.
  • FIGS. 9, 11, 14 and 16 further exemplary versions of possible interior projectile geometries are shown on exemplary intermediates 10.
  • star-shaped inner geometries corresponding to FIGS. 9, 11, 14 and 16 are possible.
  • the star geometries in Figures 14 and 16 differ from the star geometries in Figures 9 and 11 in particular in that the star-shaped notches 6, the tips of which form the axial edges 7, are distributed in the circumferential direction and arranged at a distance from one another, so that two adjacent star-shaped notches 6 are separated from one another by an arcuate, in particular stepped, free wall section 8 .
  • FIGS. 13 and 15 show polygons in the geometries, the inner geometries of FIGS. 13 and 15 also being basically polygonal, but having concavely or convexly curved peripheral sections 10 which each connect two adjacent axial edges to one another.
  • Figures 17 and 18 show two further inner geometries which have a Torx-like geometry, with several teeth 12 distributed in the circumferential direction being provided according to Figure 17, which have a truncated cone-shaped tapering section 14 and an adjoining essentially constant tooth section 16 with essentially U-shaped cross section.
  • the inner geometry according to FIG. 18 comprises a large number of essentially U-shaped teeth which essentially merge directly into one another, with a sharp-edged transition 16 connecting two adjacent teeth 12 to one another.
  • a blank 11 made of metal, preferably iron, is provided (FIG. 19), which is obtained by cutting off endless raw material such as a wire or tube.
  • the blank 11 consists of a particularly homogeneous material and is constructed in one piece, particularly from solid material.
  • the blank 11 becomes a seedling by being set
  • FIGS. 5 and 6 when the intermediate product is set, the length thereof expands, with the outer diameter remaining essentially constant.
  • the increase in length results from the central one introduced when setting Depression 15 on an end face 17 of the seedling 13, which causes a material shift, which is reflected in a length expansion.
  • a centering depression 21 is located opposite the depression 15, ie on the opposite end face 23.
  • the setting can be effected via a punch/die arrangement (not shown), with the external geometry of the punch determining the internal geometry 15 of the depression.
  • a jacket wall 25 surrounding the recess 15 is further formed in the following steps to form the future projectile nose 27 .
  • the seedling 13 is pre-pressed to form a pre-press 29 (FIG. 20b).
  • the seedling 13 is reshaped to form the preform 29 in the area of the casing wall 25, so that the final cavity geometry of the front cavity 31 of the projectile 1 is obtained.
  • the ring-cylindrical jacket wall 25 is formed into a front wall 33 that tapers at least in sections in an ogive shape. Due to the nose wall 33 tapering in the direction of the bullet tip 35, i.e. decreasing in terms of wall thickness, the longitudinal dimension of the bullet or the longitudinal dimension of the section that later forms the bullet nose 27 is extended compared to the jacket wall 25.
  • the preform 29 is then further cold-formed to form a cylindrical part 37 shown in FIG.
  • the cylinder part 37 is compressed in the axial direction, with the interior geometry 31 of the cavity being retained. Due to the axial compression of the pre-pressed part 29, the diameter of the cylinder part 37 increases.
  • the cylinder part 37 has a cylinder section 41, which consists essentially of solid material, is fully cylindrical and is arranged in the area of the future projectile rear end 39, which is formed over a large part of the cylinder part’s longitudinal extent up to the ogive-like taper of the bow coat 33.
  • the tail 39 can be further processed by cold working steps.
  • a chamfer 43 which is circumferential, can be introduced at the rear (FIG. 22).
  • the final floor 1 (FIG. 23) has a rear, essentially flat floor 45, in the center of which the centering depression 21 is located.
  • the tail of the projectile is largely no longer fully cylindrical, but largely deviates from a cylindrical shape and is only cylindrical in certain areas, in particular in an area that fixes the guide band and defines the caliber.
  • the outer diameter of the rear of the bullet can be reduced slightly starting from the guide band in the direction of the bullet base 45 .
  • the preliminary stage shown in FIG. 22 is subjected to a further forming step in the area of the bullet nose 27, in particular a cold forming step, such as a pressing step.
  • the front wall 33 is formed in that the front wall 25 is bent radially inwards, so that the front increasingly tapers in the direction of the projectile tip.
  • the nose of the bullet may also substantially close, which is accomplished by contact of the annular nose of the bullet orifice 35 .
  • the stage plan shown schematically can be used accordingly for the production of projectiles 1, as shown in Figures 2 and 4, i.e. with step contour 57 in the intermediate production step and predetermined buckling points or notches 73 on the inside and/or outside of the bow wall 33.
  • Figures 24 to 26 show another schematic, summarized stage plan, which shows the production of a further exemplary embodiment of a projectile 1 according to the invention (Figure 26) starting from an intermediate 10 ( Figure 24), which is intermediately formed according to Figure 25 to form a Intermediates io'.
  • the intermediate 10 from FIG. 24 comprises a solid base end section 49 which is essentially formed as a solid cylinder. In the longitudinal direction, this is directly followed by the pressing end section 51, which in comparison to FIGS. 1 and 3 is designed to be significantly longer.
  • intermediate 10 from FIG. 24 With intermediate 10 from FIGS. 1 and 3, it can be seen that intermediate 10 from FIG 25 changed from a substantially rectilinear extension oriented in the longitudinal direction of the intermediate to an extension oriented at an acute angle with respect to the longitudinal direction of the intermediate.
  • the jacket wall 25 has a front-side ring-cylindrical section 83 and an adjoining, rear-side section 85 with a truncated cone-shaped cross section.
  • the wall thickness of the casing wall 25 increases continuously, starting from the peripheral edge 79 in the direction of the back, up to the bottom 55 of the cavity.
  • the intermediate 10 from FIG. 24 is formed into an intermediate intermediate io as an intermediate stage to the finished projectile 1 according to FIG.
  • the intermediate intermediate io' is compressed in the axial direction in comparison to the intermediate 10 from Figure 24 in such a way that on the one hand the front side in the area of the opening 53 the jacket wall 25 is rounded on the outside, resulting in a rounded section 87, and also in such a way that the outer diameter of the intermediate io' decreases continuously starting from the rear side 54 in the direction of the opening 53 on the front side.
  • the interior geometry of the cavity is formed essentially analogously to FIG. Starting from the intermediate intermediate io' for the manufacture of the bullet 1 in FIG.
  • the jacket wall 25 is bent radially inward analogously to the manufacturing step between FIG. 22 and FIG. It can be seen in FIG. 26 that the rear cavity section, which is surrounded by a front wall 33 with a truncated cone cross section, is essentially retained.
  • the bullet 1 of Figure 27 includes the bullet tail 39 which has a sabot 89 adapted to engage the rifling field profile of a firearm barrel.
  • the projectile nose 33 At the front of the exercise band 39 is the projectile nose 33, which is in particular ogivoid in shape and ends in a projectile front or tip 35, which can be closed or open.
  • a bullet centerline M is shown by a broken line. It can be seen in FIG. 27 that the projectile 1 on its outside does not have any structural features according to the invention for influencing or desired adjustment of the deformation behavior, in particular the target ballistics.
  • the cavity, which is not shown, or the internal geometry of the projectile, which is not shown, can be shaped in accordance with FIG.
  • Projectile nose 33 opens into guide band 89 at the rear, with an angular transition 91 being provided between projectile nose 33 and guide band 89, at which the outer diameter of the projectile suddenly increases, with guide band 89 generally defining or determining the bullet caliber.
  • the maximum outside diameter of the projectile 1 is in the area of the guide band 89 .
  • the radially outwardly protruding guide band 89 ensures that the bullet 1 essentially only engages with the guide band 89 in the barrel profile of the gun, thereby reducing the engagement and/or sliding contact between the bullet 1 and the gun barrel. This reduces the resistance of the bullet to penetration.
  • FIG. 28 an exemplary embodiment of a practice cartridge projectile 1 according to the invention is shown, which differs from the embodiment according to FIG. For the rest, reference can be made to the previous statements.
  • axial edges can also be introduced in the projectile nose 33, with axial edges 97 on the outside and indicated by a dashed line on the inside Axial edges 99 can be distinguished.
  • the inner axial edges 99 result, for example, from the polygonal intermediate inner geometry, as indicated in FIGS. 6, 7 and 9 to 18, respectively.
  • the projectiles 1 of FIGS. 30 to 32 each have two external, peripheral predetermined kinks or notches 73 and differ from one another with regard to the axial position of the predetermined kinks or notches 73 in relation to the longitudinal axis of the projectile. From tests and simulations of the deformation of the projectiles 1 when they hit hard targets in particular, in which the axial compression path was set as a function of the deformation energy, it has been found that the effect of the external predetermined buckling points or notches 73 increases when the front predetermined buckling point or notch 73 arranged closer to the bullet tip is increasingly positioned in the direction of the bullet tip. In particular, it has been found that although the diameter of the deforming bullet 1 does not increase faster, the deformation energy is minimized, so that as a consequence the flattening of the bullet 1 advantageously occurs faster.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
  • Battery Electrode And Active Subsutance (AREA)
  • Heterocyclic Compounds That Contain Two Or More Ring Oxygen Atoms (AREA)

Abstract

La présente invention concerne une balle métallique de cartouche d'entraînement (1), en particulier destinée à être utilisée dans des champs de tir de police, la balle présentant une pointe en particulier ogivale (27) pourvue d'une cavité centrale, et un arrière de balle (39), la balle étant constituée de fer, plus particulièrement de fer doux, ayant une teneur en carbone supérieure à 0,05 %.
EP22708140.3A 2021-02-26 2022-02-25 Balle métallique de cartouche d'entraînement Pending EP4298396A1 (fr)

Applications Claiming Priority (2)

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DE102021104757.9A DE102021104757A1 (de) 2021-02-26 2021-02-26 Metallisches Übungspatronen-Geschoss
PCT/EP2022/054871 WO2022180243A1 (fr) 2021-02-26 2022-02-25 Balle métallique de cartouche d'entraînement

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EP4298396A1 true EP4298396A1 (fr) 2024-01-03

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US (1) US20240133664A1 (fr)
EP (1) EP4298396A1 (fr)
KR (1) KR20230150369A (fr)
CN (1) CN117098969A (fr)
AU (1) AU2022227939A1 (fr)
CA (1) CA3209933A1 (fr)
DE (1) DE102021104757A1 (fr)
WO (1) WO2022180243A1 (fr)

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Publication number Priority date Publication date Assignee Title
DE102022104617A1 (de) 2022-02-25 2023-08-31 Ruag Ammotec Ag Intermediat, Werkzeug und Verfahren zum Herstellen eines Deformationsgeschosses mit definierter Endballistik
DE102022113108A1 (de) 2022-05-24 2023-11-30 Ruag Ammotec Gmbh Werkzeug und Verfahren zum Fertigen eines Projektils sowie Projektil

Family Cites Families (11)

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Publication number Priority date Publication date Assignee Title
US3865038A (en) 1973-07-13 1975-02-11 Irwin R Barr Deterrent ammunition projectile
SE470389B (sv) 1992-06-25 1994-02-07 Bo Jakobsson Gevärskula
US5847313A (en) 1997-01-30 1998-12-08 Cove Corporation Projectile for ammunition cartridge
US5943749A (en) * 1997-11-04 1999-08-31 The Nippert Company Method of manufacturing a hollow point bullet
BE1017170A3 (fr) 2006-06-16 2008-03-04 Ct Rech Metallurgiques Asbl Projectile en acier adouci a coeur.
DE102011005389B3 (de) 2011-03-10 2012-03-01 Metallwerk Elisenhütte GmbH Geschoss für Übungspatronen
US9644928B2 (en) 2012-09-06 2017-05-09 Ruag Ammotec Gmbh Bullet and practice cartridge for use on a shooting range
US10209045B2 (en) * 2016-01-15 2019-02-19 Continuous Metal Technology, Inc. Non-jacketed expandable bullet and method of manufacturing a non-jacketed expandable bullet
DE102016009571B3 (de) 2016-08-05 2018-02-08 Ruag Ammotec Gmbh Metallisches Vollgeschoss, Werkzeug-Anordnung und Verfahren zum Herstellen von metallischen Vollgeschossen
DE102017011359A1 (de) 2017-12-08 2019-06-13 Ruag Ammotec Gmbh Intermediat zum Fertigen von Projektilen eines Deformationsgeschosses, Projektil, deformiertes Projektil, Werkzeug zum Fertigen des Intermediats und Verfahren zum Herstellen des Intermediats
DE102019135875A1 (de) 2019-12-30 2021-07-01 Ruag Ammotec Ag Vollgeschoss, Intermediat zum Fertigen eines Vollgeschosses und Verfahren zum Herstellen eines Vollgeschosses

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DE102021104757A1 (de) 2022-09-01
AU2022227939A1 (en) 2023-09-14
KR20230150369A (ko) 2023-10-30
CA3209933A1 (fr) 2022-09-01
WO2022180243A1 (fr) 2022-09-01
CN117098969A (zh) 2023-11-21

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