Chassis component for a vehicle with a hollow metal base and method for manufacturing such a chassis component

Abstract

Chassis component for a vehicle with a hollow base body (2, 28), wherein at least one axial end section (12) of the base body (2, 28) is closed by means of a forming process, and with at least one joint housing (3) made of plastic, wherein the joint housing (3) is injection-molded and / or cast onto the end section (12) of the base body (2, 28), and an outer surface (17) of the end section (12) has several protrusions (18, 20) and recesses (19, 21) due to the forming process for closing the base body (2, 28), wherein a positive fit with the plastic of the joint housing (3) is formed by means of the protrusions (18, 20) and recesses (19, 21), characterized in that the hollow base body (2, 28) is made of metal and the end section (12) has several or at least three web-like folds (22) extending circumferentially of the base body (2, 28) are distributed and extend parallel and / or radially to the central longitudinal axis (5).

Description

[0001] The invention relates to a chassis component according to the preamble of claim 1 and a method according to the preamble of claim 11.

[0002] Such a chassis component and such a method are known from US 2018 / 0 297 439 A1.

[0003] Furthermore, it is known from DE 100 63 928 A1 that an end section of the tubular base body is deformed into a flat profile in which a through hole is also formed. The hole enables a sufficient positive fit between the plastic of the joint housing and the end section.

[0004] However, creating the hole involves additional effort or a further work step. Furthermore, due to the design of the end section as a flat profile with a hole, the alignment and / or orientation of the joint housing relative to the base body is predetermined. Therefore, the base body with the formed end section must be aligned in a specific way to form the joint housing.

[0005] As an alternative to a tubular base body, DE 10 2010 041 791 A1 discloses the use of a rod as a base body, in the end section of which radially extending and circumferentially circumferential protrusions and depressions are incorporated. This eliminates the need to align the base body for injection molding the joint housing. However, the higher weight of the solid rod compared to a tubular base body is a disadvantage.

[0006] The object of the invention is to further develop a chassis component and / or a method of the type mentioned above in such a way that a sufficient positive fit between the plastic of the joint housing and the end section can be achieved in a simple manner. In particular, alignment of the end section in the circumferential direction of the base body about its central longitudinal axis and with respect to the injection molding of the joint housing should be unnecessary. Preferably, an alternative embodiment should be provided.

[0007] The problem underlying the invention is solved by a chassis component according to claim 1 and by means of a method according to claim 11. Preferred embodiments of the invention are found in the dependent claims and in the following description.

[0008] The chassis component is designed for a vehicle, in particular a motor vehicle. Preferably, the chassis component is designed for the vehicle's chassis and / or is installed in the vehicle's chassis. The chassis component can be, for example, a sway bar link, a suspension link, a two-point link, a control arm, or a stabilizer bar. In particular, within the chassis, chassis components serve to connect other chassis components to each other or to the vehicle body or an axle carrier attached thereto.

[0009] The chassis component has a hollow metal base body. Preferably, the base body is tubular or pipe-shaped. The hollow or pipe-shaped base body can have a circular or oval cross-section. In particular, the cross-section of the base body is closed, so that a cavity is formed within the base body. Preferably, the base body is a metal tube. Due to the hollow or pipe-shaped design of the base body, a weight reduction can be achieved, especially compared to a solid bar.

[0010] In particular, the base body has two axial end sections. Preferably, these two end sections also form two opposite ends of the base body. At least one axial end section of the base body is formed to close the base body, preferably in a sealing manner. In particular, due to the plastic forming, the end section is no longer hollow or tubular. Furthermore, the chassis component has at least one joint housing made of plastic, wherein the joint housing is injection-molded and / or cast onto the end section of the base body.

[0011] Due to the deformation for closing the base body, an outer surface of the end section has several protrusions and depressions, whereby the protrusions and depressions form a positive fit with the plastic of the joint housing, in particular for fixing and / or holding the joint housing on the end section.

[0012] It is advantageous that the forming of the end section to close the base body and the creation of the raised areas and recesses on the outside of the end section occur simultaneously, in the same work step. This optimizes the manufacturing process. Because the base body remains hollow or tubular apart from the formed end section, a weight-optimized chassis component can be provided, and the raised areas and recesses ensure a sufficiently strong positive fit between the end section and the joint housing. In particular, the joint housing features corresponding recesses and raised areas on the end section.

[0013] In particular, the raised and recessed areas create a profile of the end section, ensuring that the joint housing is secured against both unwanted axial displacement along the central longitudinal axis of the base body and unwanted rotation around the central longitudinal axis due to the positive locking mechanism. Preferably, the joint housing has a counter-profiling that corresponds to the profiling of the end section.

[0014] The joint housing can include a joint component movably mounted within it. In particular, the joint component has a ball joint and / or a pin joint. The joint component can be designed as a ball stud or a ball sleeve. The joint housing and the joint component can form a ball joint. Specifically, a ball joint consists of the joint housing, which is open on at least one side and has a housing recess, and a joint component mounted in the housing recess so as to pivot and / or rotate relative to the joint housing. The pin joint of the joint component can protrude outwards from an opening in the joint housing. A bearing shell can be arranged between the joint housing and a ball joint of the joint component, which reduces friction and thus wear of the joint despite the sometimes high operational loads.

[0015] According to a further development, the formed end section, with its multiple protrusions and depressions, forms a labyrinth seal for closing the base body. This seals a cavity and / or interior space of the base body, preventing the ingress of plastic during the manufacturing of the joint housing. The labyrinth seal can be formed by the interlocking protrusions and depressions of the end section. Preferably, an otherwise open hole in the hollow or tubular base body is closed by the forming of the end section. The base body can be partially or completely closed by the forming of the end section.It is essential that the base body is sufficiently sealed so that no plastic penetrates the interior or any cavity (e.g., cylindrical cavity) of the base body during overmolding and / or casting to form the joint housing. For example, a narrow gap remaining after forming, particularly due to manufacturing tolerances, may not pose a problem for overmolding and / or casting as long as the plastic does not completely pass through the gap and / or the cavity of the base body is not filled.

[0016] In a further embodiment, several first protrusions and several first depressions of the end section are formed alternately in the axial direction of the base body. Here, several rows are distributed circumferentially around the end section, each with alternating first protrusions and first depressions in the axial direction of the base body. Preferably, the several rows are aligned axially along a central longitudinal axis of the base body or parallel to the central longitudinal axis. For example, each row may have two, three, or more first depressions and two, three, or more first protrusions arranged alternately. The several rows can be distributed around the end section, particularly uniformly, in the circumferential direction. For example, the end section may have a total of at least three rows or more, such as six rows.Due to the orientation of the rows, the joint housing can be secured against unwanted rotation about the central longitudinal axis of the base body. The alternating arrangement of the first ridges and first depressions can secure the joint housing against unwanted displacement of the joint housing in the axial direction of the central longitudinal axis.

[0017] According to further training, at least one second projection and at least one second depression are formed alternately, transversely or perpendicular to the axial direction of the base body. Thus, the end section can have multiple first depressions and first projections, as well as multiple second depressions and second projections. In particular, the second projection and / or the second depression are formed as a component of a first projection and / or a first depression. Therefore, a single first projection and / or a single first depression can each have at least one second projection and / or at least one second depression. The second projection and / or the second depression can, for example, form a head or head contour of the first projection.

[0018] According to a further embodiment, the formed end section is rotationally symmetrical with respect to the central longitudinal axis of the base body. Thus, the end section and / or the base body, together with the formed end section, can be mapped onto itself for rotations about the central longitudinal axis with predetermined angle(s) of rotation. An advantage of this is that, due to the rotationally symmetrical design, alignment of the end section in the circumferential direction of the base body or about the central longitudinal axis and with respect to the injection molding of the joint housing is unnecessary. In particular, the joint housings can be formed or are formed on two opposite end sections of the base body rotated relative to each other by any desired angle and with respect to the central longitudinal axis.

[0019] Preferably, the rotational symmetry of the formed end section with respect to a rotation about the central longitudinal axis is given by a rotation angle of less than 180°. In particular, the rotational symmetry of the formed end section is given for a rotation angle of 120° or less. For example, at a rotation angle of 120°, the formed end section can be mapped onto itself in a total of three positions. Preferably, the rotational symmetry of the end section is given for a rotation angle of 90° or less. For example, at a rotation angle of 90°, the formed end section can be mapped onto itself in a total of four positions.

[0020] According to a further development, the end section has several or at least three rib-like folds, which are distributed, in particular uniformly, in the circumferential direction of the base body and extend parallel and / or radially to the central longitudinal axis. Preferably, the folds result from material folds of wall sections of the end section. In particular, each fold is formed as a simple material fold. Thus, each fold can consist of two material layers of the end section and / or two wall sections of the end section. In particular, the rib-like folds are formed by wall sections of the end section being pressed together and / or against each other. Preferably, sections of an inner surface of the end section lie against each other to form each rib-like fold.

[0021] On opposite outer surface sections of each ridge-like fold, elevations and depressions can be formed. Each ridge-like fold has a first outer surface section and a second outer surface section facing away from the first. Both the first and second outer surface sections have elevations and depressions. Here, viewed axially to the central longitudinal axis of the base body, the position of first elevations on a first outer surface section of each ridge-like fold corresponds to the position of first depressions on a second outer surface section facing away from the first outer surface section of the respective ridge-like fold.

[0022] The formed end section can have a closed end face, particularly for sealing the base body. This closed end face prevents the ingress of plastic during the formation of the joint housing. The end face can be flat or uneven. Preferably, the end face is cross-shaped. The cross-shaped end face can have three, four, or more legs.

[0023] In particular, the formed end section has a recess on its end face that is directed axially inwards towards the central longitudinal axis of the base body. The recess can be cup-shaped. Specifically, the recess is radially inwards and closed to seal the base body. The radially inwards closed recess is formed by the forming of the end section. Preferably, the recess is filled with the plastic to form the joint housing. The recess can improve the positive fit between the end section and the plastic of the joint housing.

[0024] In a further embodiment, two axially opposed end sections of the base body are formed to close the base body, particularly for sealing purposes. A plastic joint housing is injection-molded and / or cast onto each of these end sections. In particular, a joint component is movably mounted within the joint housing. The chassis component can be designed as a suspension link, a two-point link, a pendulum link, a control arm, or a stabilizer bar.

[0025] A method for manufacturing a chassis component according to the invention is particularly advantageous. In this method, the axial end section of the hollow or tubular metal base body is formed to close the base body, particularly to create a seal. Subsequently, the plastic joint housing is injection-molded and / or cast onto the formed end section of the base body. During the forming of the end section, several protrusions and depressions are simultaneously created on its outer surface. When the end section is overmolded and / or cast to produce the joint housing, a positive fit is formed between the plastic of the joint housing and the protrusions and depressions.

[0026] In a further embodiment of the method, the end section is pressed and / or folded radially from the outside inwards, at least partially, to close the base body, particularly for sealing purposes, by means of a pressing tool. Preferably, the end section is deformed and / or folded radially from the outside inwards from at least three different directions, particularly for plastic forming. For this purpose, the pressing tool can have several, in particular three, pressing jaws or pressing punches. In particular, the pressing tool or the pressing jaws and / or the pressing punches have a pressing contour that corresponds to, or is designed as a negative profile of, the desired profiling of the end section.Thus, the pressing tool or the pressing jaws and / or the pressing punches can have a pressing contour with contour ridges and contour depressions that correspond to the depressions and ridges of the formed end section.

[0027] The invention is explained in more detail below with reference to the figures. Reference numerals refer to identical, similar, or functionally equivalent components or elements. The figures show: Fig. 1 a side view of a chassis component according to the invention, Fig. 2 a section of a partially cut side view of the chassis component according to the invention Fig. 1, Fig. 3 a section of a side view of a base body for forming the chassis component according to the invention Fig. 1 and Fig. 2, Fig. 4 a section of another side view of the basic body according to Fig. 3, Fig. 5 a section of a perspective view of the basic body according to Fig. 3 and Fig. 4, Fig. 6 a front view of the basic body according to Fig. 3 to 5, and Fig. 7 a section of a perspective view of another basic body for a chassis component according to the invention.

[0028] Fig. Figure 1 shows a side view of a chassis component 1 according to the invention. The chassis component 1 has a hollow, in this embodiment straight, base body 2 made of metal. Here, the base body 2 is hollow due to its tubular design. A joint housing 3 made of plastic is arranged at each of the two opposing axial ends of the base body 2. The base body 2, or the chassis component 1, has a central longitudinal axis 5. In this embodiment, the chassis component 1 is designed as a pendulum support for a vehicle chassis (not shown in detail here). Furthermore, the two joint housings 3 are shown here, by way of example, rotated relative to each other by a predetermined angle and fixed to the base body with respect to the central longitudinal axis.

[0029] Fig. Figure 2 shows a section of a partially cut-away side view of the chassis component 1 according to the invention. Fig. 1. The sectioned joint housing can be seen. 3. In contrast to Fig. Figure 1 shows the joint housing 3 with a joint part 6. The joint part 6 is movably mounted in the joint housing 3. In this embodiment, the joint part 6 is designed as a ball stud and has a ball 7 and a pin 8. Thus, the joint housing 3 and the joint part 6 form a ball joint. In this embodiment, the joint housing 3 is open on one side by means of a housing opening 9. The joint part 6, or the ball 7, is mounted in a housing recess 10 of the joint housing 3. Furthermore, in this embodiment, a bearing shell 11 is arranged between the joint housing 3 and the ball 7, or in the housing recess 10. The bearing shell 11 is made of a friction-reducing plastic and is held in a fixed position in the housing recess 10. The joint part 6 is held in the housing recess 10 by means of the ball 7.The bearing shell 11 is pivotally and / or rotatably mounted relative to the joint housing 3. The joint pin 8 extends outwards from the joint ball 7 through the housing opening 9 of the joint housing 3.

[0030] The base body 2 has a plastically deformed end section 12. The end section 12 is received in a connection area 13 of the joint housing 3. The end section 12 has a profile 14 that interacts with a correspondingly shaped counter-profile 15 of the joint housing 3 or the connection area 13. The end section 12 is thus positively engaged and held in the joint housing 3 or in the connection area. Due to the interaction of profile 14 and counter-profile 15, the joint housing 3 is secured against undesired displacement in the axial direction of the central longitudinal axis 5 as well as against undesired rotation about the central longitudinal axis 5. The structure of the end section 12 is explained in more detail with reference to the following figures.

[0031] Fig. Figure 3 shows a section of a side view of the base body 2 for forming the chassis component 1 according to the invention. Fig. 1 and Fig. 2. Here, the axially and plastically deformed end section 12 can be seen. Due to its fundamentally hollow, or in this example, tubular shape, the base body 2 has a cavity 16 (not shown in detail). Because of the deformed end section 12, the base body 2, and thus the cavity 16, is closed. The axial end of the base body 2 is closed by the deformed end section 12 in such a way that, during subsequent overmolding and / or casting of the end section 12 with a plastic to form the joint housing 3, Fig. 1 or Fig. 2. The plastic does not enter the cavity and fill it.

[0032] An outer surface 17 of the end section 12 has several protrusions 18, 20 and depressions 19, 21 due to the deformation for closing the base body 2. Thus, the protrusions 18, 20 and the depressions 19, 21 are formed simultaneously with the plastic deformation of the end section 12 for closing the base body 2. By means of the protrusions 18, 20 and depressions 19, 21, according to Fig. 2 the positive fit with the plastic of the joint housing 3 is formed. For better clarity, not all protrusions 18, 20 and recesses 19, 21 are marked with a reference symbol.

[0033] The shaped end section 12 forms a labyrinth seal for axially closing the base body 2 by means of the several alternately formed protrusions 18 and depressions 19. By means of such a labyrinth seal, the cavity 16 of the base body 2 is particularly effective against the ingress of plastic during the manufacture of the joint housing 3 according to Fig. 1 or Fig. 2 sealed or closed.

[0034] In this embodiment, first projections 18 and first depressions 19 of the end section 12 are arranged alternately in the axial direction of the base body 2. Furthermore, several rows of first projections 18 and first depressions 19 are arranged alternately in the axial direction of the base body 2. The multiple rows of first projections 18 and first depressions 19 are distributed around the circumference of the end section 12. These multiple rows of first projections 18 and first depressions 19 are aligned axially with the central longitudinal axis 5, or parallel to the central longitudinal axis 5. In this embodiment, each row contains three first projections 18 and three first depressions 19.

[0035] In addition to the first projections 18 and the first depressions 19, this embodiment features second projections 20 and second depressions 21 on the end section 12. In this example, a second projection 20 and a second depression 21 are formed successively transversely, in this example perpendicularly, to the central longitudinal axis 5. Each second projection 20 and a second depression 21 are formed as part of a first projection 18 in this embodiment. Thus, the second projection 20 and the second depression 21 form a head or head contour of the first projection 18.

[0036] Fig. Figure 4 shows a section of another side view of the basic body 2 according to Fig. 3. The end section 12 has several, in this embodiment a total of three, web-like folds 22. For clarity, not all folds 22 are labelled. The folds 22 are evenly distributed around the circumference of the base body 2 or the end section 12. The folds 22 extend parallel or substantially parallel to the central longitudinal axis 5. Furthermore, the folds 22 extend radially or substantially radially to the central longitudinal axis 5. Each fold 22 is formed as a simple material fold. Thus, each fold consists of two material layers of the end section 12.

[0037] Furthermore, it can be seen here that on opposite outer surface sections 23, 24, raised areas 18, 20 and recesses 19, 21 are formed on each of a single fold 22. In this embodiment, viewed axially to the central longitudinal axis 5, the position of first raised areas 18 on the first outer surface section 23 corresponds to the position of first recesses 19 on the second outer surface section 24, which faces away from the first outer surface section 23. Conversely, the position of first recesses 19 on the second outer surface section 24 corresponds to the position of first raised areas 18 on the first outer surface section 23. For clarity, not all raised areas 18, 20 and recesses 19, 21 are labeled with a reference numeral.

[0038] Fig. Figure 5 shows a section of a perspective view of the basic body 2 according to Fig. 3 and Fig. 4. It is clearly evident that the web-like folds 22 are formed due to wall sections 25, 26 of the end section 12 being pressed together or against each other at least partially. To form the respective fold 22, sections of an inner surface of the end section 12 or of the wall sections 25, 26 are at least partially in contact with each other.

[0039] It is also clearly visible that a second projection 20 and a second depression 21 are formed as components of the first projection 18, thereby defining the head contour of the first projection 18. In this embodiment, the second projection 20 is formed at a radially outer end of the first projection 18. Extending radially inward from the second projection 20 is the second depression.

[0040] The end section 12 is rotationally symmetric with respect to the central longitudinal axis 5 of the base body 2. Thus, the end section 12, or the base body 2, can be mapped onto itself for rotations about the central longitudinal axis 5 with predefined rotation angle(s). In this embodiment, the rotational symmetry of the end section 12 is given for a rotation angle of 120°.

[0041] Fig. Figure 6 shows a front view of the basic body according to Fig. 3 to 5. The rotationally symmetrical design of the end section 12 and the orientation of the three folds 22 in this embodiment are clearly visible. Due to the plastic deformation of the end section 12, it is also closed.

[0042] In Fig. 5 and Fig. Figure 6 clearly shows that the formed end section 12 in this embodiment has an inwardly directed depression 27 on its end face. The depression 27 is formed axially inward with respect to the central longitudinal axis 5. Here, the depression 27 is cup-shaped. Furthermore, the depression 27 is radially inwardly closed to seal the base body 2. The radially inwardly closed depression 27 is formed by the forming of the end section 12. In the chassis component 1 according to Fig. 1 and Fig. In section 2, the recess 27 is filled with the plastic to form the joint housing 3. Due to the recess 27, the positive fit between the end section 12 and the plastic of the joint housing 3 is improved.

[0043] In an alternative, not shown in detail here, the formed end section 12 can form or have a closed end face for sealing the base body 2. This closed end face prevents the ingress of plastic during the formation of the joint housing 3.

[0044] Fig. Figure 7 shows a section of a perspective view of another basic body 28 for a chassis component 1 according to the invention, which is not shown in detail here. The structure and function of the basic body 28 largely correspond to the basic body 2 according to the invention. Fig. 2 to 6. Identical features bear the same reference symbols as before. Reference is also made to the preceding description.

[0045] In contrast to the basic body 2 according to Fig. However, in the case of the base body 28 shown here, the end face does not have an inwardly directed depression 27 in the front face. Instead, the end face of the base body 28 forms a closed or substantially closed end face for sealing the base body 28. This end face 29 prevents the ingress of plastic during the formation of the joint housing 3 or 4. In this embodiment, the end face 29 is uneven. Furthermore, the end face 29 is cross-shaped in this example. In this embodiment, the cross-shaped end face 29 forms three legs 30, 31, 32.

[0046] The end face 29 is considered closed insofar as no plastic penetrates the interior or the cavity 16 of the base body 28 during overmolding and / or overmolding to form the joint housing 3 or 4. In this context, the end face 29 is also considered closed if a narrow gap 33 remains, as long as the plastic does not completely pass through the gap 33 and thus does not enter the cavity 16 of the base body 28.

[0047] To manufacture chassis component 1 according to Fig. 1. First, the two opposing axial end sections 12 of the base body 2 or 28 are formed from metal to close the base body 2 or 28. During the forming of the end section 12, the several protrusions 18, 20 and depressions 19, 21 in the outer surface 17 of the respective end section 12 are simultaneously produced.

[0048] A pressing tool, not shown in detail here, is used to form the end sections 12, with which the end section 12 is pressed or folded radially from the outside inwards to the central longitudinal axis 5. In this embodiment, the end section 12 is deformed or folded radially from the outside inwards to the central longitudinal axis 5 from three different directions.

[0049] Subsequently, a joint housing 3 made of plastic is injection-molded and / or cast onto the formed end section 12 of the base body 2 or 28. During this overmolding and / or casting of the respective end section 12 to produce the joint housing 3, a positive fit is formed between the plastic of the joint housing 3 and the end section 12 or its profile 14. Reference sign 1 chassis component 2 basic shapes 3 Joint housings 4 joint housings 5 Central longitudinal axis 6 Joint part 7 ball joint 8 joint pins 9 Case opening 10 Housing recess 11 Bearing shell 12 Final section 13 Connection area 14 Profiling 15 Counter-profiling 16 Cavity 17 Outside 18 (first) survey 19 (first) in-depth study 20 (second) survey 21 (second) in-depth study 22 folds 23 (first) outer section 24 (second) outer section 25 wall section 26 wall section 27 depression 28 Basic bodies 29 Front surface 30 thighs 31 thighs 32 thighs 33 gap

Claims

[1] Chassis component for a vehicle with a hollow base body (2, 28), wherein at least one axial end section (12) of the base body (2, 28) is closed by means of a forming process, and with at least one joint housing (3) made of plastic, wherein the joint housing (3) is injection-molded and / or cast onto the end section (12) of the base body (2, 28), and an outer surface (17) of the end section (12) has several protrusions (18, 20) and recesses (19, 21) due to the forming process for closing the base body (2, 28), wherein a positive fit with the plastic of the joint housing (3) is formed by means of the protrusions (18, 20) and recesses (19, 21), characterized by , that the hollow base body (2, 28) is made of metal and the end section (12) has several or at least three web-like folds (22) distributed in the circumferential direction of the base body (2, 28) and extending parallel and / or radially to the central longitudinal axis (5). [2] Chassis component according to claim 1, characterized by , that the formed end section (12) forms a labyrinth seal by means of the several protrusions (18, 20) and recesses (19, 21) for closing the base body (2, 28), whereby a cavity (16) of the base body (2, 28) is sealed against the ingress of plastic during the manufacture of the joint housing (3) due to the formed end section (12) and / or the labyrinth seal. [3] Chassis component according to claim 1 or 2, characterized by , that first elevations (18) and first depressions (19) of the end section (12) are formed alternately in the axial direction of the base body (2, 28), wherein several rows distributed in the circumferential direction of the end section (12) are formed, each with alternating first elevations (18) and first depressions (19) in the axial direction of the base body (2, 28). [4] Chassis component according to claim 3, characterized by , that at least one second elevation (20) and at least one second depression (21) are formed alternately in succession transversely or perpendicularly to the axial direction of the base body (2, 28). [5] Chassis component according to claim 4, characterized by , that the second survey (20) and the second in-depth study (21) are designed as part of a first survey (18) and / or a first in-depth study (19). [6] Chassis component according to any one of the preceding claims, characterized by , that the end section (12) is rotationally symmetric with respect to a central longitudinal axis (5) of the base body (2, 28) and the rotational symmetry of the end section (12) with respect to a rotation about the central longitudinal axis (5) with a rotation angle of less than 180° in each case is given. [7] Chassis component according to any one of the preceding claims, characterized by, that the rib-like folds (22) are formed due to wall sections (25, 26) of the end section (12) being pressed together and / or against each other. [8] Chassis component according to claim 7, characterized by , that on opposite outer surface sections (23, 24) each of a rib-like fold (22) the elevations (18, 20) and depressions (19, 21) are formed, wherein, viewed in the axial direction to the central longitudinal axis (5) of the base body (2, 28), the position of first elevations (18) on a first outer surface section (23) each of a rib-like fold (22) corresponds to the position of first depressions (19) on a second outer surface section (24) of the respective rib-like fold (22) facing away from the first outer surface section (23). [9] Chassis component according to any one of the preceding claims, characterized by, that the formed end section (12) forms a closed end face (29) or the formed end section (12) has a depression (27) directed axially inwards to a central longitudinal axis (5) of the base body (2) on its end face. [10] Chassis component according to any one of the preceding claims, characterized by , that two axial end sections (12) of the base body (2, 28) facing away from each other are closed by means of a forming process, and a joint housing (3) made of plastic is injection molded and / or cast onto each of the end sections (12), wherein a joint part (6) is mounted in the joint housing (3) in a joint-movable manner. [11] A method according to which a chassis component (1) is manufactured according to one of the preceding claims, wherein the axial end section (12) of the hollow base body (2, 28) is closed by means of a forming process, and wherein at least one joint housing (3) made of plastic is injection molded and / or cast onto the formed end section (12) of the base body (2, 28), and wherein, during the forming of the end section (12), several protrusions (18, 20) and depressions (19, 21) are produced in the outer surface (17) of the end section (12), wherein, during the overmolding and / or overcasting of the end section (12) to produce the joint housing (3), a positive fit is formed between the plastic of the joint housing (3) and the protrusions (18, 20) and depressions (19, 21), characterized by, that the hollow base body (2, 28) is made of metal and the end section (12) is formed with several or at least three web-like folds (22) which are distributed in the circumferential direction of the base body (2, 28) and extend parallel and / or radially to the central longitudinal axis (5). [12] Method according to claim 11, characterized by , that the end section (12) of the base body (2, 28) is pressed and / or folded at least partially from the outside inwards by means of a pressing tool radially to the central longitudinal axis (5) and is thereby closed, wherein the end section (12) is deformed and / or folded radially from the outside inwards from at least three different directions to the central longitudinal axis (5) for forming.

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