EP3986633B1 - Base part for producing a cartridge case and cartridge case, method for producing a base part for a cartridge case, and method for producing a cartridge case - Google Patents

Description

The invention relates to a base part for producing a cartridge case, which has a case base for receiving a percussion cap, a circumferential extractor recess being provided on the outer circumference of the base part. The invention also relates to a cartridge case with a cylindrical case, which has a case opening for receiving a propellant charge and a projectile, and a base part opposite the case opening. The invention also relates to methods for producing the base part and the cartridge case.

The EP 2 690 391 A1 which forms the basis for the preamble of claim 1 discloses a method of manufacturing a cartridge case. In the known method, an extractor groove in the form of a circumferential surface of revolution is produced in a sleeve blank by means of forming the blank. To produce the extractor groove, a relatively complex forming tool is required, which includes a spacer, among other things. The placeholder in turn comprises 6 to 8 segments.

The WO 2014/051940 A1 as well as the EP 3 372 324 A1 disclose methods of making a one-piece sleeve blank. The extractor groove in the form of a circumferential surface of revolution is produced in the sleeve blank using a machining process. The machining of an extractor groove is complex.

The US10041770B2 discloses the manufacture of a two-piece cartridge case. To produce such a two-piece cartridge case with a a circumferential extractor groove is connected to a sleeve. The production of two-piece cartridge cases is also complex.

The object of the invention is to eliminate the disadvantages of the prior art. In particular, a base part for producing a cartridge case and a cartridge case are to be specified, which can be produced in a simplified manner. Furthermore, methods for producing a base part and/or a cartridge case that can be carried out as simply and inexpensively as possible should be specified.

This object is solved by the features of patent claims 1, 7, 10, 11, 25 and 29. Expedient refinements of the invention result from the features of the dependent patent claims.

According to the invention, it is proposed in a base part for the production of a cartridge case that the extractor recess has a polygonal geometry, which in cross section is formed from a closed stretch. - In conventional floor parts, the extractor recess is designed as a groove and thus as a circumferential surface of revolution, which forms a circle in cross section. The proposed polygonal shape of the extractor recess can be produced in a simplified manner, in particular by means of a forming process. During forming, material can flow from the center of each span of the span towards the corners bounding the spans in the cross-section. Surprisingly, it has been shown that the functions of a conventional extractor groove are also fulfilled by an extractor recess which has a polygonal geometry.

A “bottom part” within the meaning of the present invention is usually a body that is at least partially cylindrical. The term "cross section" is understood to mean a cutting plane which perpendicularly intersects the cylinder axis and runs through the extractor recess. The term "extractor recess" is understood to mean a depression extending radially inwards from the outer circumference of the base part or a base section. The extractor recess can be produced by being pressed in from the outer circumference by a force acting radially inwards. In addition, it is also possible to produce the extractor recess by means of a machining process. Finally, it is also conceivable, starting from a profiled starting body, to create cylindrical ones by means of forces acting radially outwards To form sections on both sides of a profile section, resulting in the extractor recess.

According to an advantageous embodiment, at least some of the stretches forming the stretch are straight. All routes are preferably straight. However, it can also be the case that at least some of the stretches forming the stretch are curved (e.g. convex or concave).

The routes are usually delimited by corners in the route. The corners can also be rounded.

According to an advantageous embodiment, the straight line is designed to be rotationally symmetrical with respect to an axis of rotation. In particular, the stretch can be 2n-fold rotationally symmetrical with respect to an axis of rotation, where n is a number ≧3. i.e. the polygon geometry can be in the form of a regular 6-corner, 8-corner, etc.

According to a further embodiment, the base of the case has an opening for receiving the percussion cap.

A base part with the aforementioned features can be designed in such a way that it is suitable as an assembly part for producing a cartridge case. However, it can also be designed in such a way that the cartridge case can be produced from it in one part by means of a further shaping process.

According to a further measure of the invention, a cartridge case with a cylindrical case is proposed, which has a case opening for receiving a propellant charge and a projectile, as well as a base part according to the invention opposite the case opening.

The cylindrical sleeve and the bottom part can be formed in one piece. However, it can also be the case that the cylindrical sleeve and the base part are firmly connected by means of a joining technique. The bottom part can be welded to the sleeve, for example.

• Bereitstellen eines Ausgangskörpers zur Herstellung der Patronenhülse,
• Herstellen einer umlaufenden Auszieherausnehmung am Außenumfang des Ausgangskörpers in Form einer Polygongeometrie, welche im Querschnitt einen geschlossenen Streckenzug bildet.

According to a further measure of the invention, a method for producing a cartridge case is proposed, with a cylindrical case having a case opening for receiving a propellant charge and a projectile, and a has a base section opposite the case opening with a case base for receiving a percussion cap, with the following steps:

• Providing a starting body for the production of the cartridge case,
• Production of a peripheral extractor recess on the outer circumference of the starting body in the form of a polygon geometry, which forms a closed line in cross section.

The proposed method provides a one-piece cartridge case. The starting body can already have a cylindrical sleeve before the circumferential extractor recess is produced. However, it can also be the case that the cylindrical sleeve is formed only after the extractor recess has been produced.

• Bereitstellen eines Ausgangskörpers, und
• Herstellen einer umlaufenden Auszieherausnehmung am Außenumfang des Ausgangskörpers in Form einer Polygongeometrie, welche im Querschnitt einen geschlossenen Streckenzug bildet.

According to a further measure of the invention, a method for producing a base part for a cartridge case is proposed, which has a case base for receiving a percussion cap, with the following steps:

• providing a starting body, and
• Production of a peripheral extractor recess on the outer circumference of the starting body in the form of a polygon geometry, which forms a closed line in cross section.

The proposed variant of the method provides a base part which is particularly suitable for the production of multi-part cartridge cases in which the base part is joined to a case.

For the purposes of the present invention, the term “starting body” is to be understood in general terms. This is a metallic body, which can be, for example, a wire section with a cylindrical outer circumference. However, the starting body can also be a shaped body which has already been shaped or processed by means of machining processes. The starting body can already have an opening for receiving the percussion cap.

According to an advantageous embodiment, the polygon geometry is produced from a cylindrical starting body by means of a forming process or a machining process. The polygon geometry can be produced in a simplified manner, in particular by means of a forming process.

The polygon geometry is expediently stamped into an outer circumference of the starting body. It has proven to be particularly advantageous to produce the polygon geometry by means of several forming steps.

Advantageously, in a first forming step, a first polygon geometry is embossed into the outer circumference of the starting body, and in a second forming step, a second polygon geometry superimposed in sections on the first polygon geometry is embossed in the first polygon geometry.

According to the proposed embodiment, a first polygonal geometry is embossed into the outer circumference of the base blank in a first forming step. This can be done with a relatively simply designed forming tool. In a second forming step that follows the first forming step, a second polygon geometry that at least partially overlays the first polygon geometry is embossed into the first polygon geometry. The second forming step can also be carried out with a simply configured forming tool. The overstamping of the first polygon geometry at least in sections in the second forming step results in a polygonally designed extractor recess with high dimensional accuracy. The second forming step expediently increases the number of lines or polygon lines compared to the first forming step. For example, the first polygon geometry can be 6-fold rotationally symmetrical with respect to an axis of rotation. The second polygon geometry can be 12-fold or 24-fold rotationally symmetrical with respect to an axis of rotation.

According to an advantageous embodiment, first edges produced in the first forming step are at least partially embossed in the second forming step. In particular in the closing area of the forming tools, first edges can have a burr or the like after the first forming step. Since the first edges produced in the first forming step are at least partially embossed in the second forming step, a polygonally shaped extractor recess can be produced with high geometric precision in a simple and cost-effective manner.

A 2-part or multi-part forming tool is expediently used to produce the polygon geometries. In general, a simply designed 2-, 3- or 4-part forming tool is sufficient. Also multi-part forming tools, z. B. 8-, 9- or 10-piece forming tools can be used.

According to a further embodiment of the method, the starting body can be rotated axially by a predetermined angle relative to the forming tool after the first forming step and before the second forming step. i.e. either the starting body can be rotated relative to the fixed forming tool or the forming tool can be rotated relative to the fixed starting body. It is also possible, after the first forming step, to place the starting body in a second forming tool which, with regard to the polygon geometry, is rotated by a predetermined angle relative to the polygon geometry provided in the first forming tool. As a result, the edges of the second polygon geometry at least partially lie on the lines of the first polygon geometry.

It is possible to produce the first and the second polygon geometry with the same forming tool. i.e. Two identical forming tools can be used in succession along a forming section to produce the first and second polygon geometries. When converting a first starting body provided with the first polygon geometry, this is expediently rotated by a predetermined angle and then placed in the next forming tool to produce the second polygon geometry.

According to an expedient embodiment, the first polygon geometry is produced by means of a first forming tool and the second polygon geometry is produced by means of a second forming tool that is different from the first forming tool. For example, a first polygon geometry that is 6-fold rotationally symmetrical with respect to an axis of rotation can be produced with the first forming tool. With the second forming tool, a second polygonal geometry can be produced which, for example, is 12-fold rotationally symmetrical with respect to an axis of rotation. The first polygon geometry can be overstated by the second polygon geometry such that the first edges of the first polygon geometry coincide with second edges of the second polygon geometry. However, it can also be the case that the first edges of the first polygon geometry do not coincide with the second edges of the second polygon geometry produced subsequently.

According to an advantageous embodiment, at least one tool can be inserted into the starting body and/or attached to the outer circumference of the starting body during the forming process. The tool can be used to hold, index, punch, fill, emboss and/or shape the starting body. In this way, the dimensional accuracy in the manufacture of the base part can be improved.

According to an alternative embodiment, the base part or the cartridge case can also be produced from a further starting body having the polygon geometry by means of a forming process. i.e. in this case the polygonal geometry of the extractor recess is predetermined by the further starting body. The other starting body is shaped in such a way that a cylindrical outer circumference is formed, in which the extractor recess with the polygon geometry remains. Furthermore, it is also conceivable to produce the polygon geometry by means of roller burnishing, starting from a cylindrical starting body. The opening for receiving the percussion cap can be made before, during or after the production of the polygon geometry in the case base. The polygon geometry is expediently 2n-fold rotationally symmetrical with respect to an axis of rotation, where n is a number ≧3. i.e. the polygonal geometry of the extractor recess can, for example, be rotationally symmetrical about an axis of rotation 6, 8, 10, 12 times.

According to a further proviso of the invention, a method for producing a cartridge case is proposed, with a cylindrical case which has a case opening for receiving a propellant charge and a projectile, and a base part opposite the case opening with a case base for receiving a percussion cap, with the following steps:
Production of a bottom part according to the method described above, and molding of the cylindrical sleeve onto the bottom part by means of extrusion.

The proposed method provides a cartridge case in which the base part and the case are formed in one piece.

Advantageously, the cylindrical sleeve can also be formed by means of extrusion and deep-drawing.

Before the sleeve is molded on, at least one tool can be inserted into the base part and/or attached to the outer circumference of the base part. The tool can be used to hold, index, punch, fill, emboss and/or shape the base part and/or the sleeve.

A cartridge case produced according to the above method can be produced exclusively by means of forming and can therefore be produced particularly efficiently.

• Herstellung eines Bodenteils nach dem oben beschriebenen Verfahren, Bereitstellen der Hülse, und
• Verbinden des Bodenteils mit der Hülse mittels eines Fügeverfahrens.

A method is also proposed for producing a cartridge case, with a cylindrical case which has a case opening for receiving a propellant charge and a projectile, and a base part opposite the case opening with a case base for receiving a primer cap, with the following steps:

• Production of a bottom part according to the method described above, providing the sleeve, and
• Connecting the bottom part to the sleeve by means of a joining process.

The joining method can be, for example, a welding method or other suitable methods.

It is emphasized that the sequence of the method steps in the methods listed in the description and in the claims is not limited to the order presented in each case, but that any other sequence of steps is also included.

Advantageously, the starting body and/or the sleeve is made of a non-ferrous metal or steel. The non-ferrous metal can be selected from the following group: brass, aluminum or aluminum alloy.

Fig. 1

eine perspektivische Ansicht eines Ausgangskörpers,

Fig. 2

eine Schnittansicht gemäß Fig. 1,

Fig. 3

eine erste Schnittansicht durch ein erstes Umformwerkzeug,

Fig. 4

eine vergrößerte Ansicht gemäß Fig. 3,

Fig. 5

eine zweite Schnittansicht des ersten Umformwerkzeugs gemäß Fig. 3

Fig. 6

eine vergrößerte Ansicht gemäß Fig. 5,

Fig. 7

eine perspektivische Ansicht eines ersten Hülsenformkörpers,

Fig. 8

eine Schnittansicht gemäß Fig. 7,

Fig. 9

eine Schnittansicht durch ein zweites Umformwerkzeug,

Fig. 10

eine vergrößerte Ansicht gemäß Fig. 9,

Fig. 11

eine zweite Schnittansicht durch das zweite Umformwerkzeug,

Fig. 12

eine vergrößerte Ansicht gemäß Fig. 11,

Fig. 13

eine Seitenansicht des ersten Hülsenformkörpers gemäß Fig. 7 mit geöffnetem ersten Umformwerkzeug,

Fig. 14

eine Seitenansicht eines zweiten Hülsenformkörpers mit geöffnetem zweiten Umformwerkzeug,

Fig. 15

eine Schnittansicht durch ein Umformwerkzeug mit darin aufgenommenem Hülsenformkörper,

Fig. 16

eine Seitenansicht eines zweiten Hülsenformkörpers,

Fig. 17

eine Schnittansicht gemäß der Schnittlinie A - A in Fig. 16,

Fig. 18

eine Querschnittansicht gemäß der Schnittlinie B - B in Fig. 16,

Fig. 19

eine perspektivische Ansicht gemäß Fig. 16,

Fig. 20

einen dritten Hülsenformkörper,

Fig. 21

eine perspektivische Ansicht eines ersten Umformwerkzeugs im geöffneten Zustand und eines ersten Hülsenformkörpers,

Fig. 22

eine perspektivische Ansicht gemäß Fig. 21, wobei das erste Umformwerkzeug geschlossen ist,

Fig. 23

eine perspektivische Ansicht einer ersten Formkavität des ersten Umformwerkzeugs,

Fig. 24

eine perspektivische Ansicht eines zweiten Umformwerkzeugs im geöffneten Zustand und eines zweiten Hülsenformkörpers,

Fig. 25

eine perspektivische Ansicht des zweiten Umformwerkzeugs im geschlossenen Zustand, und

Fig. 26

eine perspektivische Schnittansicht einer zweiten Formkavität des zweiten Umformwerkzeugs im geschlossenen Zustand.

Exemplary embodiments of the invention are explained in more detail below with reference to the drawings. Show it:

1

a perspective view of a starting body,

2

a sectional view according to FIG 1 ,

3

a first sectional view through a first forming tool,

4

an enlarged view according to 3 ,

figure 5

a second sectional view of the first forming tool according to FIG 3

6

an enlarged view according to figure 5 ,

7

a perspective view of a first molded sleeve body,

8

a sectional view according to FIG 7 ,

9

a sectional view through a second forming tool,

10

an enlarged view according to 9 ,

11

a second sectional view through the second forming tool,

12

an enlarged view according to 11 ,

13

a side view of the first molded sleeve body according to FIG 7 with the first forming tool open,

14

a side view of a second molded sleeve body with the second forming tool open,

15

a sectional view through a forming tool with a molded sleeve body accommodated therein,

16

a side view of a second molded sleeve body,

17

a sectional view according to section line A - A in 16 ,

18

a cross-sectional view according to section line B - B in 16 ,

19

a perspective view according to FIG 16 ,

20

a third sleeve molding,

21

a perspective view of a first forming tool in the open state and a first molded sleeve body,

22

a perspective view according to FIG 21 , whereby the first forming tool is closed,

23

a perspective view of a first mold cavity of the first forming tool,

24

a perspective view of a second forming tool in the open state and a second molded sleeve body,

25

a perspective view of the second forming tool in the closed state, and

26

a perspective sectional view of a second mold cavity of the second forming tool in the closed state.

The invention is explained below using a starting body for producing a cartridge case. Instead of the starting body for producing a cartridge case, a starting body for producing the base part can also be provided and the base part can be produced therefrom using an analogous method. Such a base part can be joined with a sleeve to form a cartridge case.

1 shows a perspective view of a starting body 1 for the production of a cartridge case, which z. B. is made by extrusion or extrusion and deep drawing. The starting body 1 has a cylindrical sleeve 2 which has a sleeve opening 3 and a sleeve base 4 opposite the sleeve opening 3 . The case base 4 has an opening 5 for receiving a percussion cap (not shown here). With the broken line a bottom section is indicated. - The base section can be formed from a separate base part T in a multi-part design of the cartridge case.

The Figures 3 to 6 and 21 to 23 show the production of a first polygonal geometry P1 in the area of the sleeve base 4. A first forming tool 6 here consists of two first mold halves 6a, 6b. As in particular from the Figures 5, 6 , 21 and 23 As can be seen, the first forming tool 6 has a relatively simple design. In the area of its first mold cavity K1, it has first projections 7 (see 23 ) for embossing a first polygon geometry P1 in the sleeve base 4. The first polygon geometry P1 is a 6-fold rotationally symmetrical polygon geometry with respect to an axis of rotation. A polygon geometry, as z. Tie Figures 5 and 6 shown in cross-section is formed by a closed stretch. The routes are limited by corners. The routes are just formed here.

The Figures 7, 8 and 13 show a first molded sleeve body F1, ie the starting body after the first forming step. The first polygonal geometry P1 embossed in the sleeve base 4 has first polygonal surfaces 10 which are each delimited by first edges 11 in the circumferential direction.

The Figures 9 to 12 and 24 to 26 show the production of a second polygon geometry P2 in a second forming step. To produce the second polygonal geometry P2, the first molded sleeve body F1 is inserted into a second forming tool 8, which, like the first forming tool 6, can be formed from two second mold halves 8a, 8b. How from the Figures 9 to 12 and 24 to 26 As can be seen, the second forming tool 8 has a second mold cavity K2 with second projections 9 (see 26 ), which is 6-fold rotationally symmetrical with respect to an axis of rotation for the production of the second polygon geometry P2. The second projections 9 are twisted by about 30 degrees relative to the first projections 7 . The first molded sleeve body F1 is inserted into the second mold 8 in such a way that first edges 11 of the first polygonal geometry P1 are located approximately in the middle of a straight section of the second projections 9 . As a result, when the second forming tool 8 is closed, the first polygon geometry P1 is combined with a second polygon geometry P2 (see FIG 12 ) overstated. The result is a second molded sleeve body F2 with a second polygonal geometry P2, which is 12 times rotationally symmetrical (see Figures 16 to 19 ). The second polygon geometry P2 has second polygonal areas 12, which are delimited in the circumferential direction by second edges 13 (see 14 ).

As indicated by the arrows in 10 is indicated, further forming steps can take place to produce a polygon geometry. For this purpose, for example, the second shaped sleeve body F2 can be rotated by a predetermined angular amount relative to the second forming tool 8 and subsequently formed in a third forming step. Further forming steps can be carried out in a similar way.

13 shows the first molded sleeve body F1 with the first mold 6 open 14 shows in an analogous manner the second molded sleeve body F2 with the second molding tool 8 open. As shown in particular in FIG 15 As can be seen, a tool (not shown here) can be inserted into the sleeve 2 and/or the opening 5 when embossing the first polygonal geometry P1 and/or the second polygonal geometry P2. A tool (not shown here) can also be applied to the outer circumference of the starting body or the sleeve shaped body. Undesirable deformation, in particular the formation of folds or the like, within the sleeve 2 and/or the opening 5 can thus be avoided. The arrows indicate that the tool can have a holding, filling, embossing or shaping effect. In addition, it is also conceivable to have a piercing or indexing effect with the tool.

20 shows a third molded sleeve body F3, which has a third polygon geometry P3. The third polygon geometry P3 can e.g. B. be produced by the first polygon geometry P1 is overstated with a second polygon geometry P2, which is not congruent with the first polygon geometry P1 and is also adjusted relative to the first polygon geometry P1 by a predetermined angle.

Reference List

1

initial body

2

sleeve

3

sleeve opening

4

case base

5

breakthrough

6

first forming tool

6a, 6b

first mold halves

7

first protrusions

8th

second forming tool

8a, 8b

second mold halves

9

second protrusions

10

first face

11

first edge

12

second polygon face

13

second edge

T

bottom part

P1

first polygon geometry

p2

second polygon geometry

P3

third polygon geometry

F1

first sleeve body

F2

second shell body

F3

third shell body

K1

first mold cavity

K2

second mold cavity

Claims (31)

1. Base part (T) for producing a cartridge case, said base part having a case base (4) for receiving a primer cap, wherein a circumferential extractor recess is provided on the outer circumference of the base part (T),
   characterized
   in that the extractor recess has a polygon geometry (P1, P2, P3) which is formed from a closed traverse in cross section.
2. Base part (T) according to Claim 1,
   wherein at least some of the paths forming the traverse are straight.
3. Base part (T) according to one of the preceding claims,
   wherein at least some of the paths forming the traverse are curved.
4. Base part (T) according to one of the preceding claims,
   wherein the traverse is rotationally symmetrical in relation to an axis of rotation.
5. Base part (T) according to one of the preceding claims,
   wherein the traverse has 2n-fold rotational symmetry in relation to an axis of rotation, where n is a number ≥ 3.
6. Base part (T) according to one of the preceding claims,
   wherein the case base (4) has an opening (5) for receiving the primer cap.
7. Cartridge case having a cylindrical case (2) which has a case opening (3) for receiving a propellant charge and a projectile, and also has a base part (T) opposite the case opening (3), according to one of the preceding claims.
8. Cartridge case according to Claim 7,
   wherein the cylindrical case (2) and the base part (T) are formed in one piece.
9. Cartridge case according to Claim 7 or Claim 8,
   wherein the cylindrical case (2) and the base part (T) are fixedly connected by means of joining technology.
10. Method for producing a cartridge case, having a cylindrical case (2) which has a case opening (3) for receiving a propellant charge and a projectile, and also has a base part (T) opposite the case opening (3) with a case base (4) for receiving a primer cap, having the following steps:

    supplying a base body (1) for producing the cartridge case,

    producing a circumferential extractor recess on the outer circumference of the base body (1) in the form of a polygon geometry (P1, P2, P3) which forms a closed traverse in cross section.
11. Method for producing a base part (T) for a cartridge case which has a case base (4) for receiving a primer cap, having the following steps:

    supplying a base body (1) for producing the base part (T),

    producing a circumferential extractor recess on the outer circumference of the base body in the form of a polygon geometry (P1, P2, P3) which forms a closed traverse in cross section.
12. Method according to Claim 11,
    wherein the polygon geometry (P1, P2, P3) starting from a cylindrical base body (1) is produced by means of a reshaping method and/or a machining method.
13. Method according to Claim 12,
    wherein the polygon geometry (P1, P2, P3) is stamped in the outer circumference of the base body (1).
14. Method according to Claim 12 or Claim 13,
    wherein the polygon geometry (P1, P2, P3) is produced by means of multiple shaping steps.
15. Method according to Claim 14,

    wherein in a first shaping step, a first polygon geometry (P1) is stamped into the outer circumference of the base body (1), and

    wherein in a second shaping step, a second polygon geometry (P2, P3) at least sectionally overlaying the first polygon geometry (P1) is stamped into the first polygon geometry (P1).
16. Method according to Claim 15,
    wherein first edges (11) produced in the first shaping step are at least partially over-stamped in the second shaping step.
17. Method according to one of Claims 12 to 16,
    wherein a 2-part or multi-part shaping die is used to produce the polygon geometries (P1, P2, P3).
18. Method according to one of Claims 15 to 17,
    wherein the base body (1) is rotated axially about a predetermined angle relative to the shaping die following the first shaping step and before the second shaping step.
19. Method according to one of Claims 15 to 18,
    wherein the first polygon geometry (P1) is produced by means of a first shaping die and the second polygon geometry (P2, P3) by means of a second shaping die which is different from the first shaping die.
20. Method according to one of Claims 12 to 19,
    wherein at least one tool is inserted into the base body (1) and/or applied to the outer circumference of the base body (1) during the shaping method.
21. Method according to Claim 20,
    wherein by means of the tool, holding, indexing, perforating, filling, stamping and/or shaping is applied to the base body (1).
22. Method according to one of Claims 11 to 21,
    wherein the polygon geometry (P1, P2, P3) is produced starting from a cylindrical base body by means of rolling.
23. Method according to one of Claims 11 to 22,
    wherein an opening (5) for receiving the primer cap is produced before, during or after the polygon geometry (P1, P2, P3) is produced in the case base (4).
24. Method according to one of Claims 11 to 23,
    wherein the polygon geometry (P1, P2, P3) has a 2n-fold rotational symmetry in relation to an axis of rotation, wherein n is a number ≥ 3.
25. Method for producing a cartridge case, having a cylindrical case (2) which has a case opening (3) for receiving a propellant charge and a projectile, and also has a base part (T) opposite the case opening (3) with a case base (4) for receiving a primer cap, having the following steps:

    producing a base part (T) by a method according to one of Claims 11 to 24,

    molding the case (2) onto the base part (T) by means of extrusion molding.
26. Method according to Claim 25,
    wherein the molding-on takes place by means of extrusion molding and deep-drawing.
27. Method according to Claim 25 or 26,
    wherein prior to the molding-on of the case (2), at least one tool is inserted into the base part (T) and/or applied to the outer circumference of the base part (T).
28. Method according to one of Claims 24 to 26,
    wherein by means of the tool, holding, indexing, perforating, filling, stamping and/or shaping is applied to the base part and/or the case (2).
29. Method for producing a cartridge case, having a cylindrical case (2) which has a case opening (3) for receiving a propellant charge and a projectile, and also has a base part (T) opposite the case opening (3) with a case base (4) for receiving a primer cap, having the following steps:

    producing a base part (T) by a method according to one of Claims 11 to 24,

    supplying the case (2), and

    connecting the base part (T) to the case (2) by means of a joining method
30. Method according to one of Claims 10 to 29,
    wherein the base body (1) and/or the case (2) is/are produced from a non-ferrous metal or steel.
31. Method according to Claim 30,
    wherein the non-ferrous metal is selected from the following group: brass, aluminum or aluminum alloy.

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