EP2817111A1 - A method for producing a vehicle component which is in bent hollow pipe form - Google Patents

A method for producing a vehicle component which is in bent hollow pipe form

Info

Publication number
EP2817111A1
EP2817111A1 EP13705142.1A EP13705142A EP2817111A1 EP 2817111 A1 EP2817111 A1 EP 2817111A1 EP 13705142 A EP13705142 A EP 13705142A EP 2817111 A1 EP2817111 A1 EP 2817111A1
Authority
EP
European Patent Office
Prior art keywords
section
cross
continuation
extending
mold set
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.)
Withdrawn
Application number
EP13705142.1A
Other languages
German (de)
French (fr)
Inventor
Gokalp Uysal
Divaneoglu Server
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.)
Coskunoz Metal Form Makina Enduestri Ve Ticaret AS
Original Assignee
Coskunoz Metal Form Makina Enduestri Ve Ticaret AS
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 Coskunoz Metal Form Makina Enduestri Ve Ticaret AS filed Critical Coskunoz Metal Form Makina Enduestri Ve Ticaret AS
Publication of EP2817111A1 publication Critical patent/EP2817111A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
    • B21D5/01—Bending sheet metal along straight lines, e.g. to form simple curves between rams and anvils or abutments
    • B21D5/015—Bending sheet metal along straight lines, e.g. to form simple curves between rams and anvils or abutments for making tubes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
    • B21D5/06—Bending sheet metal along straight lines, e.g. to form simple curves by drawing procedure making use of dies or forming-rollers, e.g. making profiles
    • B21D5/10—Bending sheet metal along straight lines, e.g. to form simple curves by drawing procedure making use of dies or forming-rollers, e.g. making profiles for making tubes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D53/00—Making other particular articles
    • B21D53/88—Making other particular articles other parts for vehicles, e.g. cowlings, mudguards

Definitions

  • the present invention relates to methods for pieces which are in hollow pipe form and particularly relates to methods used in producing vehicle components which are in hollow pipe form bent in three dimensions.
  • the present invention relates to a novel production method, in order to eliminate the abovementioned problems and to bring new advantages to the related technical field.
  • the object of the present invention is to provide production of vehicle components, which are in bent form and which have a hollow pipe form with a variable cross section, in a shorter time and with lower costs.
  • Another object of the present invention is to provide production of said vehicle components in less number of process steps and particularly to provide production of said vehicle components without the need for an operation step like end cutting.
  • the present invention is a production method for transforming a flat sheet plate to a vehicle component which is in pipe form and whose at least one part has a variable cross section and which comprises a front part, a first bending part extending at the continuation of said front part, an intermediate part extending at the continuation of said first bending part, a second bending part extending at the continuation of said intermediate part, and a rear part extending at the continuation of said second bending part, said production method is characterized by comprising the steps of:
  • a press comprising a first mold set having at least one female and at least one male mold and in other words, bringing the flat sheet plate to a form which will have a U-like cross section and which will extend in a curved direction so as to define said front part, said first bending part, said intermediate part, said second bending part and said rear part,
  • a press comprising a second mold set having at least one female and at least one male mold and thus, forming the end parts which will provide functionality in closing the pipe cross section.
  • the corners of the female mold of said first mold set comprise a housing which is in curved rectangular form and the male mold has a form which completes said housing.
  • the first mold set, used in the forming process defined in step (b) is provided so as to define a front part extending in the straight direction, a first bending part extending upwardly at a narrow angle at the continuation of said front part, an intermediate part extending parallel to the extension direction of the front part at the continuation of said first bending part, a second bending part extending downwardly at a narrow angle at the continuation of said intermediate part, a rear part extending in the same direction with the second bending part at the continuation thereof.
  • the female mold of said second mold set comprises a housing which is similar to an elongated trapezoid and whose corners on the base part are curved and whose edges are approaching to each other; and the male mold has a form which completes said housing.
  • said end parts are formed so as to extend at a certain narrow angle (a) with respect to the extension direction of the arm part.
  • step (d) the front part cross section is provided to be circular, and the intermediate part is provided to have a circular cross section which is partially flattened, and the rear part is provided to have a rectangular cross section.
  • step (d) first of all, the cross section of the rear part is shaped to a geometry whose upper half is circular and whose lower part is rectangular by using another mold set and an arbor, and afterwards, said cross section is shaped to a rectangle by using the third mold set and by using said arbor again.
  • said vehicle component is the rear axle lateral arm of an automobile.
  • the subject matter improvement is explained with references to examples without forming any restrictive effect in order to make the subject more understandable. Accordingly, in the detailed description and in the figures below, the subject matter production method is described to be used in the production of the rear axle lateral arm of an automobile. However, the subject matter method can also be used in production of other vehicle components which are bent in three dimensions. With reference to Figure 1 a and 1 b, the piece, produced using the subject matter method, is a vehicle component which is bent in 3 dimensions and which has a variable cross section.
  • said vehicle component (10) is defined by a front part (1 1 ) extending in a straight direction, a first bending part (12) extending upwardly at a narrow angle at the continuation of said front part (1 1 ), an intermediate part (13) extending parallel to the extension direction of the front part (1 1 ) at the continuation of said first bending part (12), a second bending part (14) extending downwardly at a narrow angle at the continuation of said intermediate part (13), and a rear part (15) which is narrower and however which extends in the same direction to the second bending part (14) at the continuation of said second bending part (14) and by means of this, said vehicle component (10) extends in a partially curved direction so as to have a structure similar to a cam shaft.
  • Cut-outs which are similar to semi-circle, are formed at the top and at the bottom on the outward facing side of the rear part.
  • the front part (1 1 ) has a circular cross section.
  • the intermediate part (13) has a circular cross section which is partially flattened, and with reference to Figure 1 e, the rear part has a rectangular cross section.
  • the subject matter production method which is designed in order to produce the abovementioned vehicle component is as follows.
  • the flat sheet plate (50) which is to be used in production of the vehicle component, is brought to a predetermined form by means of the periphery cutting process carried out by means of a press (not illustrated in the figure) comprising a suitable mold set.
  • the sheet plate (50), which is in flat form is formed by means of a press comprising a first mold set (20) having the female and male molds (21 , 22).
  • the female mold (21 ) comprises a housing which is in the form of a rectangle whose corners are curved and the male mold (22) has a form so as to complete said housing.
  • the flat sheet plate (50) is brought to a form where the arm parts (51 ) are facing downwardly, in other words, the sheet plate (50) is brought to a form so as to have a U-like cross section.
  • the sheet plate (50) becomes extending in the direction illustrated in Figure 1 b.
  • the front part (1 1 ), the first bending part (12), the intermediate part (13), the second bending part (14) and the rear part (15) are formed which will form the vehicle component.
  • the flat sheet plate (50), which becomes U cross sectioned, is formed again by means of a press comprising a second mold set (30).
  • the female mold (31 ), provided in the second press set, comprises an extended trapezoidal housing whose edges approach each other and whose corners provided in the base part are curved; and the male mold (32) has a form which completes this housing.
  • the arm parts (51 ) of the flat sheet plate (50) are approaching to each other, and thus, the end parts (52) are formed, which will provide functionality in closing the cross section of the pipe.
  • Said end parts (52) are preferably extending at a certain angle (a) with respect to the extension direction of the arm part (51 ).
  • the sheet plate (50) which has a U-like cross section and which has end parts (52) whose arms are approaching each other, is subject to the closing process by means of a press comprising a third mold set (40).
  • the third press set comprises two female molds (41 , 42) designed so as to form a variable cross sectioned pipe from the sheet plate (50) and thus, the sheet plate (50) is closed by being bent from the end parts (52).
  • an arbor (43) which enters from one end and which has a suitable cross section, this part is provided to have a rectangular cross section whose corners are curved and which is given in Figure 1 e.
  • this operation is performed in two steps.
  • the cross section of the rear part (15) is shaped into a form, which is similar to the cross section of the intermediate part (131 ) which is also given in Figure 1 d, by using another mold set (not illustrated in the figure) and an arbor (43), in other words, the cross section of the rear part (15) is shaped into a form whose upper half is circular and whose bottom half is rectangular, and afterwards, it is shaped into the final form, illustrated in Figure 1 e, by using the third mold set (40) and the arbor (43).
  • this part is provided to have a circular cross section, illustrated in Figure 1 c, with the help of another arbor (44) which has a suitable cross section entering through the other end. This operation can be carried out in a single step.
  • the sheet piece is welded from the end parts (52) thereof and thus, the vehicle component, which is illustrated in Figure 1 a and which is bent in three dimensions and which has a variable cross sectioned pipe structure, is produced without using the hydroforming and/or pipe bending methods which were used in the prior art.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
  • Body Structure For Vehicles (AREA)

Abstract

The present invention relates to a production method for transforming a flat sheet plate (50) to a vehicle component which is in pipe form and whose at least one part has a variable cross section and which comprises a front part (11), a first bending part (12) extending at the continuation of said front part (11), an intermediate part (13) extending at the continuation of said first bending part (12), a second bending part (14) extending at the continuation of said intermediate part (13), and a rear part (15) extending at the continuation of said second bending part (14).

Description

SPECIFICATION
A METHOD FOR PRODUCING A VEHICLE COMPONENT WHICH IS IN BENT HOLLOW
PIPE FORM
The present invention relates to methods for pieces which are in hollow pipe form and particularly relates to methods used in producing vehicle components which are in hollow pipe form bent in three dimensions. PRIOR ART
There are pluralities of methods known in the present art for producing components which are in hollow pipe form and which are bent in three dimensions. For instance, the desired forms can be obtained by using a pipe bending machine. However, since the raw material used is a pipe, the costs increase and the bending process by using the pipe bending machine may take a long time. In addition, when different cross sections are desired in the bent pipe, for instance, in case some part of the pipe has a square cross section, this process can only be done by using hydro-forming mechanisms. During this process, first of all, female molds, which will provide the desired cross section (for instance square cross section), are placed around the part whose cross section is desired to be changed, afterwards, the pipe is covered from one inlet thereof and high pressured water comprising lubricant elements is applied to the pipe from the other inlet thereof. As a result of the effect of the pressured water, the related part of the pipe, encircled by the female molds, is transformed into the desired cross section. As a result, because of these two processes, the production costs and the production duration are increasing.
As a result, because of the abovementioned problems, an improvement is required in the related technical field. BRIEF DESCRIPTION OF THE INVENTION
The present invention relates to a novel production method, in order to eliminate the abovementioned problems and to bring new advantages to the related technical field. The object of the present invention is to provide production of vehicle components, which are in bent form and which have a hollow pipe form with a variable cross section, in a shorter time and with lower costs. Another object of the present invention is to provide production of said vehicle components in less number of process steps and particularly to provide production of said vehicle components without the need for an operation step like end cutting. In order to realize all of the abovementioned objects and the objects which are to be obtained from the detailed description below, the present invention is a production method for transforming a flat sheet plate to a vehicle component which is in pipe form and whose at least one part has a variable cross section and which comprises a front part, a first bending part extending at the continuation of said front part, an intermediate part extending at the continuation of said first bending part, a second bending part extending at the continuation of said intermediate part, and a rear part extending at the continuation of said second bending part, said production method is characterized by comprising the steps of:
Bringing the flat sheet plate to a predetermined shape by means of a periphery cutting process provided by a press comprising a suitable mold set,
Bringing the flat sheet plate to a form, where the arm parts of the flat sheet plate will face downwardly, by means of a press comprising a first mold set having at least one female and at least one male mold and in other words, bringing the flat sheet plate to a form which will have a U-like cross section and which will extend in a curved direction so as to define said front part, said first bending part, said intermediate part, said second bending part and said rear part,
Bringing the arm parts of the flat sheet plate to a form where the arm parts are approaching to each other, by means of a press comprising a second mold set having at least one female and at least one male mold and thus, forming the end parts which will provide functionality in closing the pipe cross section.
Closing the sheet plate by bending the sheet plate from the end parts thereof, by means of a press comprising a third mold set having at least two female molds, and during this process, providing the rear part to have a predetermined cross section with the help of an arbor which has a suitable cross section and which enters into the third mold set from one end, and providing the front part with a different cross section from the rear part with the help of another arbor which has a suitable cross section and which enters into the third mold set from the other end.
In a preferred application of the subject matter method, the corners of the female mold of said first mold set comprise a housing which is in curved rectangular form and the male mold has a form which completes said housing. In a preferred application of the subject matter method, the first mold set, used in the forming process defined in step (b), is provided so as to define a front part extending in the straight direction, a first bending part extending upwardly at a narrow angle at the continuation of said front part, an intermediate part extending parallel to the extension direction of the front part at the continuation of said first bending part, a second bending part extending downwardly at a narrow angle at the continuation of said intermediate part, a rear part extending in the same direction with the second bending part at the continuation thereof.
In a preferred application of the subject matter method, the female mold of said second mold set comprises a housing which is similar to an elongated trapezoid and whose corners on the base part are curved and whose edges are approaching to each other; and the male mold has a form which completes said housing.
In another preferred application of the subject matter method, in said step (c), said end parts are formed so as to extend at a certain narrow angle (a) with respect to the extension direction of the arm part.
In another preferred application of the subject matter method, in step (d), the front part cross section is provided to be circular, and the intermediate part is provided to have a circular cross section which is partially flattened, and the rear part is provided to have a rectangular cross section.
In another preferred application of the subject matter method, in step (d), first of all, the cross section of the rear part is shaped to a geometry whose upper half is circular and whose lower part is rectangular by using another mold set and an arbor, and afterwards, said cross section is shaped to a rectangle by using the third mold set and by using said arbor again.
In another preferred application of the subject matter method, said vehicle component is the rear axle lateral arm of an automobile.
BRIEF DESCRIPTION OF THE FIGURES
In Figure 1 a and Figure 1 b, the representative views of a vehicle component, produced using the subject matter method, are given.
In Figure 1 c, 1 d and 1 e, the cross sectional views of vehicle component from A-A, B-B and C-C cross sections are given. In Figure 2a, 2b, 2c and 2d, the representative views of the production process of the vehicle component are given.
REFERENCE NUMBERS
10 Vehicle component
1 1 Front part
12 First bending part
13 Intermediate part
14 Second bending part
15 Rear part
151 Cut-out
20 First mold set
21 Female mold
22 Male mold
30 Second mold set
31 Female mold
32 Male mold
40 Third mold set
41 Female mold
42 Female mold
43 Arbor
44 Arbor
50 Sheet plate
51 Arm part
52 End part
THE DETAILED DESCRIPTION OF THE INVENTION In this detailed description, the subject matter improvement is explained with references to examples without forming any restrictive effect in order to make the subject more understandable. Accordingly, in the detailed description and in the figures below, the subject matter production method is described to be used in the production of the rear axle lateral arm of an automobile. However, the subject matter method can also be used in production of other vehicle components which are bent in three dimensions. With reference to Figure 1 a and 1 b, the piece, produced using the subject matter method, is a vehicle component which is bent in 3 dimensions and which has a variable cross section. In more details, said vehicle component (10) is defined by a front part (1 1 ) extending in a straight direction, a first bending part (12) extending upwardly at a narrow angle at the continuation of said front part (1 1 ), an intermediate part (13) extending parallel to the extension direction of the front part (1 1 ) at the continuation of said first bending part (12), a second bending part (14) extending downwardly at a narrow angle at the continuation of said intermediate part (13), and a rear part (15) which is narrower and however which extends in the same direction to the second bending part (14) at the continuation of said second bending part (14) and by means of this, said vehicle component (10) extends in a partially curved direction so as to have a structure similar to a cam shaft. Cut-outs, which are similar to semi-circle, are formed at the top and at the bottom on the outward facing side of the rear part. With reference to Figure 1 c, the front part (1 1 ) has a circular cross section. As can be seen in Figure 1 d, the intermediate part (13) has a circular cross section which is partially flattened, and with reference to Figure 1 e, the rear part has a rectangular cross section.
Accordingly, the subject matter production method which is designed in order to produce the abovementioned vehicle component is as follows. First of all, the flat sheet plate (50), which is to be used in production of the vehicle component, is brought to a predetermined form by means of the periphery cutting process carried out by means of a press (not illustrated in the figure) comprising a suitable mold set. Afterwards, with reference to Figure 2a, the sheet plate (50), which is in flat form, is formed by means of a press comprising a first mold set (20) having the female and male molds (21 , 22). In more details, the female mold (21 ) comprises a housing which is in the form of a rectangle whose corners are curved and the male mold (22) has a form so as to complete said housing. Thus, by means of said first mold set (20), the flat sheet plate (50) is brought to a form where the arm parts (51 ) are facing downwardly, in other words, the sheet plate (50) is brought to a form so as to have a U-like cross section. On the other hand, during the same forming process, the sheet plate (50) becomes extending in the direction illustrated in Figure 1 b. Thus, the front part (1 1 ), the first bending part (12), the intermediate part (13), the second bending part (14) and the rear part (15) are formed which will form the vehicle component.
In this stage, by means of the mold sets (20, 30, 40) and by means of the operation steps designed in a suitable manner, particularly the flat sheet plate (50) is brought to the U cross sectioned form in a single operation. In the opposite case, in other words, in case only some part of the sheet becomes U cross sectioned as a result of the drawing process, at least the ends of the parts except the U form should be cut, and this means that there needs to be an additional operation step. By means of this solution provided in the subject matter method, the need for cutting such an end is eliminated. This decreases the production costs and at the same time, accelerates the production process.
With reference to Figure 2b, the flat sheet plate (50), which becomes U cross sectioned, is formed again by means of a press comprising a second mold set (30). The female mold (31 ), provided in the second press set, comprises an extended trapezoidal housing whose edges approach each other and whose corners provided in the base part are curved; and the male mold (32) has a form which completes this housing. Thus, by means of said second mold set (30), the arm parts (51 ) of the flat sheet plate (50) are approaching to each other, and thus, the end parts (52) are formed, which will provide functionality in closing the cross section of the pipe. Said end parts (52) are preferably extending at a certain angle (a) with respect to the extension direction of the arm part (51 ).
With reference to Figure 2c and Figure 2d, the sheet plate (50), which has a U-like cross section and which has end parts (52) whose arms are approaching each other, is subject to the closing process by means of a press comprising a third mold set (40). The third press set comprises two female molds (41 , 42) designed so as to form a variable cross sectioned pipe from the sheet plate (50) and thus, the sheet plate (50) is closed by being bent from the end parts (52). During this process, with the help of an arbor (43) which enters from one end and which has a suitable cross section, this part is provided to have a rectangular cross section whose corners are curved and which is given in Figure 1 e. In a preferred application of the subject matter invention, this operation is performed in two steps. In the first step, the cross section of the rear part (15) is shaped into a form, which is similar to the cross section of the intermediate part (131 ) which is also given in Figure 1 d, by using another mold set (not illustrated in the figure) and an arbor (43), in other words, the cross section of the rear part (15) is shaped into a form whose upper half is circular and whose bottom half is rectangular, and afterwards, it is shaped into the final form, illustrated in Figure 1 e, by using the third mold set (40) and the arbor (43). In a similar manner, this part is provided to have a circular cross section, illustrated in Figure 1 c, with the help of another arbor (44) which has a suitable cross section entering through the other end. This operation can be carried out in a single step.
In the final step, the sheet piece is welded from the end parts (52) thereof and thus, the vehicle component, which is illustrated in Figure 1 a and which is bent in three dimensions and which has a variable cross sectioned pipe structure, is produced without using the hydroforming and/or pipe bending methods which were used in the prior art.

Claims

A production method for transforming a flat sheet plate (50) to a vehicle component which is in pipe form and whose at least one part has a variable cross section and which comprises a front part (1 1 ), a first bending part (12) extending at the continuation of said front part (1 1 ), an intermediate part (13) extending at the continuation of said first bending part (12), a second bending part (14) extending at the continuation of said intermediate part (13), and a rear part (15) extending at the continuation of said second bending part (14), said production method is characterized by comprising the steps of: a) Bringing the flat sheet plate (50) to a predetermined shape by means of a periphery cutting process provided by a press comprising a suitable mold set (20, 30, 40),
b) Bringing the flat sheet plate (50) to a form, where the arm parts (51 ) of the flat sheet plate (50) will face downwardly, by means of a press comprising a first mold set (20) having at least one female and at least one male mold (21 , 22) and in other words, bringing the flat sheet plate (50) to a form which will have a U-like cross section and which will extend in a curved direction so as to define said front part (1 1 ), said first bending part (12), said intermediate part (13), said second bending part (14) and said rear part (15),
c) Bringing the arm parts (51 ) of the flat sheet plate (50) to a form where the arm parts (51 ) are approaching to each other, by means of a press comprising a second mold set (30) having at least one female and at least one male mold (31 , 32) and thus, forming the end parts (52) which will provide functionality in covering the pipe cross section.
d) Closing the sheet plate (50) by bending the sheet plate (50) from the end parts (52) thereof (50), by means of a press comprising a third mold set (40) having at least two female molds (41 , 42), and during this process, providing the rear part (15) to have a predetermined cross section with the help of an arbor (43) which has a suitable cross section and which enters into the third mold set (40) from one end, and providing the front part (1 1 ) with a different cross section from the rear part (15) with the help of another arbor (44) which has a suitable cross section and which enters into the third mold set (40) from the other end.
2. A production method according to Claim 1 , characterized in that the corners of the female mold (21 ) of said first mold set (20) comprise a housing which is in curved rectangular form and the male mold (22) has a form which completes said housing.
A production method according to Claim 1 , characterized in that the female mold (31 ) of said second mold set (30) comprises a housing which is similar to an elongated trapezoid and whose corners on the base part are curved and whose edges are approaching to each other; and the male mold (32) has a form which completes said housing. A production method according to Claim 1 , characterized in that the first mold set
(20), used in the forming process defined in step (b), is provided so as to define a front part (1 1 ) extending in the straight direction, a first bending part (12) extending upwardly at a narrow angle at the continuation of said front part (1 1 ), an intermediate part extending parallel to the extension direction of the front part (1 1 ) at the continuation of said first bending part (12), a second bending part (14) extending downwardly at a narrow angle at the continuation of said intermediate part, a rear part (15) extending in the same direction with the second bending part (14) at the continuation thereof.
5. A production method according to Claim 1 , characterized in that in said step (c), said end parts (52) are formed so as to extend at a certain narrow angle (a) with respect to the extension direction of the arm part (51 ).
6. A production method according to Claim 1 , characterized in that in step (d), the front part (1 1 ) cross section is provided to be circular, and the intermediate part (13) is provided to have a circular cross section which is partially flattened, and the rear part (15) is provided to have a rectangular cross section.
7. A production method according to Claim 1 or 6, characterized in that in step (d), first of all, the cross section of the rear part (15) is shaped to a geometry whose upper half is circular and whose lower part is rectangular by using another mold set and by using an arbor (43), and afterwards, said cross section is shaped to a rectangle by using the third mold set (40) and by using said arbor (43) again.
8. A production method according to any one of the preceding claims, characterized in that said vehicle component is the rear axle lateral arm of an automobile.
EP13705142.1A 2012-02-23 2013-02-13 A method for producing a vehicle component which is in bent hollow pipe form Withdrawn EP2817111A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TR2012/02067A TR201202067A2 (en) 2012-02-23 2012-02-23 A method for producing a bent hollow tubular vehicle component.
PCT/EP2013/052898 WO2013124198A1 (en) 2012-02-23 2013-02-13 A method for producing a vehicle component which is in bent hollow pipe form

Publications (1)

Publication Number Publication Date
EP2817111A1 true EP2817111A1 (en) 2014-12-31

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP13705142.1A Withdrawn EP2817111A1 (en) 2012-02-23 2013-02-13 A method for producing a vehicle component which is in bent hollow pipe form

Country Status (4)

Country Link
EP (1) EP2817111A1 (en)
CN (1) CN104302416A (en)
TR (1) TR201202067A2 (en)
WO (1) WO2013124198A1 (en)

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