EP2704938A1

EP2704938A1 - Rail vehicle body shell and method for manufacturing same

Info

Publication number: EP2704938A1
Application number: EP12711833.9A
Authority: EP
Inventors: Burkhart Liesenberg; Mario Friedrich; Birgit BECKER; Heiko RITSCHEL
Original assignee: Bombardier Transportation GmbH
Current assignee: Alstom Transportation Germany GmbH
Priority date: 2011-05-04
Filing date: 2012-03-23
Publication date: 2014-03-12
Anticipated expiration: 2032-03-23
Also published as: CN202966323U; PL2704938T3; CN103534160A; CN103534160B; ES2567802T3; KR101919175B1; EP2704938B1; WO2012150091A1; KR20140031293A

Abstract

The invention relates to a method for manufacturing a car body shell of a rail vehicle comprising the steps: preparation of a bogie (60), production of outer wall modules (1) according to a tailored blank method, in which cut-to-size pieces of sheet metal (10, 11) with different material properties are joined to one another in a butt-jointed fashion by means of laser welding to form a side wall face, with the result that an outer face (18) of the side wall face is produced without material discontinuities at the joints and wherein, when the outer wall modules (1) are produced on an inner side (17) of the side wall face, a framework structure (4) formed from framework profiles (5, 5a, 5b) is attached, joining of a plurality of outer wall modules (1) together to form at least one central side wall section (81), wherein the outer wall modules (1) are joined to one another in a butt-jointed fashion by means of laser welding without an offset occurring at the joints in the outer face (18a) of the side wall section (81), attachment of at least the central side wall section (81) and, if appropriate, of outer wall modules (1) embodied as side wall modules (94) and, if appropriate, front end modules on the bogie (60), and joining the roof elements (71, 72), wherein the step of producing an outer wall module (1) comprises joining a bent upper chord profile (2) to the side wall face, wherein the upper chord profile (2) terminates an upper edge of the outer wall module and is joined, in a butt-jointed fashion by means of laser welding, to adjacent pieces of the pieces of sheet metal (10, 11) with different material properties, without a material discontinuity occurring at the outer face (18) of the side wall face, wherein the upper chord profile (2) comprises a profile section (42) which is bent with respect to the outer face (18) of the side wall face towards the inside (17) of the outer wall module (1), and wherein, in the step of joining the framework structure (4) to the inside (17) of the side wall face, the framework structure profiles (5, 5a, 5b) are attached by end-side abutment edges (19, 20, 21) to the inside (17) of the side wall face including the upper chord profile by means of T joints and are fastened in a materially joined fashion by means of laser weld seams (13). The invention also relates to a car body shell and to an outer wall module.

Description

Rail vehicle body shell and method for its production

The invention relates to a shell of a rail car body and the production of a shell of a car body of a rail vehicle. In particular, the invention relates to a production of Au ßenwände for a rail vehicle body by means of outer wall modules and a method for producing such outer wall module, such outer wall module and a method for manufacturing a rail car body from such Au ßenwandmodulen itself.

Car bodies for rail vehicles are known from the prior art, which are manufactured in so-called "differential construction" and have a made of different parts, such as side rails, cross members and pillars, manufactured skeleton, which is provided with an Au ßenbeblechung to one of them In the prior art, the car bodies are so far formed that the skeleton comprises carrying sheet metal elements which form a fan-like skeleton in these subjects sheets are inserted, which then together with individual parts of the skeleton an outer wall of the By way of example, such a vehicle body is described in DE 102008048083 A1, which also describes producing sheet metal elements from at least two sheet metal parts which have a different sheet thickness or sheet metal thickness a lower Bela are exposed, can be reduced and thereby weight and material can be saved.

An assembly of metal sheets to each other or from skeleton profiles to each other or from skeleton profiles with sheets of an outer panel is generally carried out in such a way that at least a partial planar material overlap occurs at edge regions of the parts to be fastened together. This leads, on the one hand, to a material doubling occurring in these areas which, without effecting a higher strength or rigidity of the outer wall, causes an increase in weight and an increase in the use of material. In addition, such overlap areas

Problem areas with regard to a crevice corrosion. Further example is here on the JP 2008238193 A, JP 2008087546 A, WO 2008/068796 A1 or

Refer to WO 2008/068808 A1. The structures described there also show joint connections which have a material overlap. From DE 195 21 892 C1 discloses a surface element is known, which is constructed in a differential construction of at least one cover plate and a plurality of fixedly connected to it and the cover plate stiffening webs. The solid

Connections are made by puncturing the cover plate along a linear contact surface between the webs and the cover plate by thermal joining from the side of the cover plate facing away from the webs. A disadvantage of such a method is that the cover plate is broken in this process and thus a surface of the surface element disadvantageous in its outer

Appearance and surface condition is impaired. For putting in place only selective joints between the webs and the cover plate can be formed. Furthermore, it is provided in DE 195 21 892 C1 that surface elements, if they are integrated into a car body, are connected at the edges with an overlap connection, preferably a rivet connection, with supporting parts.

From WO 2009/09462 A1, a car body for a rail vehicle is known, which consists of several components. There it is provided that at least one component has a box-shaped structure which consists of walls which are connected by plug connections. The connectors can be secured by welding points.

From DE 10 2006 038 058 A1 a method for producing a modular steel car body is known. The method comprises the steps:

a) providing a predetermined undercarriage for the steel car body, b) providing a number of first base elements, each of which is in the form of cover plates with stiffeners,

c) joining a suitable number of cover plates for the production of

Side walls, the roof and the end walls of the car body,

d) cutting out required openings in the side walls, the roof and the

End walls,

e) forming the sidewalls and the roof into a desired geometry, f) providing a number of second base elements which are in the form of ribs, g) cutting the ribs to a desired length,

h) forming the ribs to a desired shape for a car body cross-section, i) positioning the ribs on the base of the steel car body in a positioning device, j) welding the side walls to the frames and the underframe, k) welding the roof to the body structure,

I) welding the end walls to the car body structure and the subframe, m) providing a number of third base elements, in the form of sheets for

Frame production available,

n) producing frames whose dimensions are adapted to the openings made in step d),

o) welding the frame produced in step n) in the openings and on the end walls. The outer walls are here made of sheets of uniform material thickness and inserted openings and cut-outs after joining the sheets.

From DE 199 16 287 A1 a sheet-like component for the lining of car bodies of rail vehicles and a method for their production are known. In an area of a corner of a recess (for example, a window or door opening) in the finished wall is a before the introduction of the recess

Material breakthrough generated, in which a component of increased strength over the other components is inserted, which together form the sheet-like component. Before the introduction of the recesses breakthroughs are thus introduced into the already joined wall, are inserted into the components with increased strength, which remain permanently in the sheet-like component. The components of increased strength are disposed adjacent to the rectangular corners of the permanently remaining recesses.

It is an object of the present invention to provide a method for a production of a car body shell, especially for elongated car bodies, such Wagenkastenrohbau and Au ßenwandmodule for a rail vehicle body shell, which are easy to manufacture and executable manufacturing and individual car body designs , Especially for elongated high-speed rail vehicle cars with great interior comfort.

It is proposed an outer wall module for a car body of a rail vehicle, which

an outer panel formed as a self-supporting shearfield module, o is composed of sheet-formed sheets of different properties, wherein

o the plates each butt abutting with their respective end faces, which are oriented transversely to the flat extent of the individual sheets, adjacent to each other and

o are assembled via continuous laser welds in such a way that the individual sheets form an offset-free outer surface on an outer side of the shear field module,

o the sheets of different properties at least first sheets and

comprise second sheets,

o the second sheets each have a greater resistance, in particular

Strength and / or greater material thickness than the first sheets have and

o the second sheets form areas of the outer sheet, in which

Operation of a rail vehicle in a car with the outer wall module manufactured car body increased voltages occur

o wherein the side wall surface formed by the outer panel is closed at an upper edge by a Obergurtprofil which is stump abutting end faces of corresponding adjacent assembled sheets of Au ßenbeblechung added without an offset occurs on the outer surface in the region of the laser weld, the Obergurtprofil opposite the outer surface of the side wall surface to the inside of the outer wall module towards angled profile section comprises

and

comprising a skeleton formed from skeleton profiles,

o wherein the skeleton profiles with frontal abutting edges on an inner side of the

Border outside over T joints abut and

o are attached via laser welds.

Both the flat expanded sheets of the outer panel, each having a nearly constant material thickness transverse to the flat extent, and the skeleton profiles on the outer panel forming sheets are each exclusively on the front sides, ie, those side surfaces connected to each other, the lowest possible contact surface exhibit. A material doubling is consistently avoided. As a result, a total corrosion susceptibility of the Outside wall module or one formed from one or more of these modules outer wall of a rail car body are significantly reduced. Inserting a top flange profile into the outer wall module as a completion of a horizontally extending top edge offers several advantages. On the one hand, a stress-resistant and low-distortion connection is created on the butt joint attachment by means of laser welding, which provides an offset-free Au ßenfläche. About the provision of a profile section which is angled ßenfläche to the inner surface of the side wall surface and the outer wall module towards the Au, it is possible to realize a variety of ceiling elements for the realization of various roof shapes, also in sections, in a car body. A great flexibility of the roof design is achieved.

An outer wall module for a car body of a rail vehicle is obtained by a proposed method, which comprises the steps of: joining sheet-shaped plates of different properties, in particular

Material strengths, designed as a self-supporting shear field module

External panel, wherein the sheets each butt-jointed with their respective

End faces, which are oriented transversely to the planar extent of the individual sheets, adjacent to each other and are joined together by continuous laser welds in such a way that the individual sheets on an outer side of the

Schubfeldmoduls form a non-offset Au ßenfläche, said individual sheets at least first sheets and second sheets with different properties, in particular different thicknesses, comprise, the second sheets each have a greater resistance, in particular strength and / or larger

Thickness of material, as the first sheets have, the second sheets are inserted into areas of Außenbeblechung, which in the operation of the rail vehicle in a Shen from the Au ßenwandmodul or with the outer wall carcass increased stresses occur, and from skeletons a skeleton is created, the Gerippeprofile with frontal abutting edges on an inner side of the Au ßenbebechung adjacent to T-joints and are attached via laser welds on the outer panel, with an appendix of an angled Obergurtprofils is provided to the outer panel and the Obergurtprofil an upper edge of the Au ßenwandmoduls and ends by laser welding butt jointed adjacent to the at least first and second sheets of different material properties is added, without causing a jump in material on the outer surface of the side wall surface, wherein the Obergurtprofil comprises a relation to the Au ßenfläche the side wall surface to the inner surface of the outer wall module out angled profile section.

The invention has the advantage that an Au ßenwandstruktur arises which have sufficient resistance or material thickness in those areas where elevated stress loads occur, but in other areas where low stress loads occur, even less

Resistance or material thickness can be used. As a result, a weight-reduced and / or produced using less expensive materials outer wall is created, but which is not affected in terms of their structural capacity. Already in the manufacturing process an Au ßenflächenstruktur is created, which requires little or no additional processing before applying a Au ßenlackierung. In addition, areal

Avoid material duplication, which otherwise have a high susceptibility to crevice corrosion. In addition, such a construction allows areas where increased stresses occur to be kept free of any seams.

As sheet-wide plates sheet metal products are considered here, which have a substantially equal thickness of material across a flat extent. The sheets thus have at least locally to each other substantially plane-parallel oriented surfaces. The side surfaces formed perpendicular or transversely to these surfaces are referred to herein as end surfaces and used to join the individual sheets together. A chamfering in particular of the second sheets, which have a higher material thickness than that sheet, with which they are to be joined, in the edge region may be advantageous in order to optimize a flow of force in the finished joined Au ßenbeblechung. Here, the chamfered side of the inside of the Au ßenbeblechung faces.

In order to obtain a trouble-free outer surface of the outer panel as well as in terms of optimized production technology, the laser welds over which the sheet-like plates are joined together or are preferably carried out from the inside of the Au ßenbeblechung or Schubpanule module.

The second metal sheets of the outer sheet are arranged in regions or form regions in or at which functional opening edges, in particular Function opening corners, for example, window opening corners and / or door opening corners are formed.

Due to the fact that no surfaces are produced with material doubling, such a Au ßenwandmodul or such Au ßenwand for a car body can also be made of materials that otherwise not so high

Have corrosion resistance. It is thus not necessary, for example, that all the sheets are made of stainless, i. high-alloy steel.

Rather, it is provided in a preferred embodiment, that at least the first sheets, preferably in addition, the sheet metal profiles of the skeleton and the

Most preferred also also sheet metal profiles of the skeleton and the second sheets of non-high-alloy steels exist.

The individual sheet-like expanded sheets of different material thicknesses are preferably cut by means of a precision method. This is preferably done via a laser cutting process. This makes it possible to manufacture the individual sheets so that the abutting edges fit together optimally. The individual sheets do not necessarily have to be flat, but may also have a curvature or a kink.

For an optimal connection of the abutting edges of the skeleton profiles with the

To produce external paneling, the edges of the profiles are tailored so that they are optimally adapted to the structure of the inside of the outer panel. This means that the abutting edges of the skeleton profiles are cut by means of a laser cutting method so that the abutting edges receive notches which are adapted to the resulting offsets on the inside of the outer panel due to the different material thicknesses of the sheets of the outer panel. Furthermore, the edge is of course adapted to any existing bulges or kinks of Außenbeblechung. This creates the opportunity, even the skeleton profiles over continuous

Laser welding seams, preferably T-joints, to be connected to the outer panel. In general, the welding is carried out in such a way that it does not completely melt or penetrate the outer panel. In another embodiment, the T-joints can also be provided with a laser fillet weld or two laser fillet welds. By attaching or attaching the frame profiles to the inside of the

External baffle or the inside of the side wall surface or the inside of the outer wall module is always to be understood that the skeleton profiles are also where they are connected to the Obergurtprofil adjacent to this, that is attached to the inside. Here, too, the attachment takes place in such a way that the skeleton profile abuts the upper flange profile only with one end face in each case and is connected in a material-locking manner to the upper flange profile by means of laser welding. Since usually the Obergurtprofil is first materially connected to the at least first and / or second sheets, the attachment of the end faces of the skeletal profiles, on the one hand abut first and / or second sheets and on the other hand also to the Obergurtprofil, by means of, optionally double-sided, continuous weld can be performed. The cohesive connection is carried out by means of laser welding, without penetrating one of the sheets or the top flange profile.

An inventively produced car body of a rail vehicle comprises a side wall which is made of one or more outer wall modules, wherein a side wall Au ßenbebchech is formed as a uniformly self-supporting shear field module with integrated Obergurtprofil, wherein the possibly more Au ßenwandmodule are joined together in such a way that the Au ßenbeblechung forming sheets of the various outer wall modules are also butt jointed with laser welding seams with the front sides, so that the side wall outer panel is designed as an offset-free Au ßenfläche.

In some embodiments, a sidewall portion is first made of a plurality of outer wall modules in which the side edges of adjacent outer wall modules that are perpendicular or nearly perpendicular in the finished body are butted against each other and form a central side wall portion. As a result, modularly elongated sidewalls for car bodies can be joined together almost stress-free.

In some embodiments, analogously configured further outer wall modules, which are attached as side wall termination at the ends of the underframe, connected via a tolerance compensation shock with the middle side wall portion. The Außenbeblechung has in these embodiments on each side of the car body then one or two joints on which a tolerance compensation is performed to adjust the length of the complete side wall to the length of the prefabricated undercarriage. The outer wall modules forming the side wall termination are also referred to as side wall end modules or outer wall end modules.

In principle, it is also possible to carry out this joining by means of separately cut sheet metal, the butt jointing between the respective one

Inserted side wall end outer wall module and the middle side wall section and inserted without offset by means of laser welding.

The provision of a joint with tolerance compensation on the side wall forming the outer wall module thus enables an adaptation of the length of the side wall to the length of the underframe. Furthermore, the outer wall module forming the side wall termination generally comprises a door cutout provided that a door is provided in the side wall. A cross-module adaptation of the door opening in the outer wall module and the base can also be easier to implement in the provision of a joint with tolerance compensation.

In order to require as little as possible a number of carriages in a carriage assembly of predetermined length or passenger and / or cargo capacity assembled from several carriages, it is desirable to be able to produce carriages as long as possible and thus carriages. To realize this and a "bending below the theoretical zero position" of the car body between the

In a preferred embodiment, the undercarriage is manufactured and / or provided along its longitudinal direction by means of a projection, and the outer wall modules are made trapezoidal, so that when the outer wall modules are joined to the side wall section, they are compensated

Sidewall portion is prepared with a projection or elevation, which is largely adapted to the projection of the underframe. The preferably

standardized Au ßenwandmodule are thus produced with a trapezoidal side surface.

To any roof segments or roof elements, also different

Cross-sectional shape (for example, flat or round), with variable pitch along the longitudinal direction of the undercarriage or car body to the from the Exterior wall modules formed side walls to install, have

Preferably, at least the Au ßenwandmodule from which the middle

Sidewall portion is formed, all the same side wall height. The height here is the distance between the horizontally or nearly horizontally oriented edges of the outer wall module in the installed state.

If the outer wall modules are designed with a trapezoidal side surface, the result is a middle side wall section which has a segment of a polygon at a lower edge (and at an upper edge). This forms the protrusion or elevation. As a rigidity of the roof elements over the

Sidewall elements and in particular the Obergurtprofil is reduced can

Roof elements at any points along the longitudinal extension to the bias or cant be adjusted.

A high stability of the side wall or the outer wall modules is achieved by the provided with the Obergurtprofil side wall surface is designed as a self-supporting push panel and on an inner side of the side wall surface (outer panel) with the Obergurtprofil, transverse to the horizontal longitudinal extent of Obergurtprofils oriented continuous vertical skeleton profiles as columns with their end faces via T-joints are connected by laser welding to the inside of the side wall surface. For particularly stressed car bodies, for example

High-speed trains in which aerodynamic alternating loads occur during operation, the T-bumps are preferably double-sided and preferably continuously by means of laser welding to the inner surface of the Außenbeblechung attached. Only by laser welding T-joints can be realized whose seam cross-sections do not exceed the computationally necessary seam cross-sections. The pillar skeleton profiles, which represent the entire vertical extent of a wall module

span, are preferably arranged adjacent to recesses for windows, doors or the like.

In a preferred embodiment, on the underframe and in the

Roof elements attached or formed skeleton profiles, which when joining the side wall portion or the outer wall modules with the base and attaching the ceiling elements with the supports of the outer wall module or from the

Exterior wall modules joined together sidewall section to each circumferential be assembled trained annular frames. In the finished car body thus circumferential annular frames are formed, which give the car body high stability.

Preferably, between the columns serving as columns vertical skeleton profiles horizontal skeleton profiles as purlins and not consistently the entire vertical extent of Au ßenwandmoduls spanning skeleton profiles as local

Frame reinforcements added by laser welding to the inner surface of the side wall surface. In this case, the rib profiles are attached to the front sides via T joints. These skeleton profiles can preferably at least in a dummy field area have a smaller overall height perpendicular to the inner surface of the outer panel than the vertical columns in order to create space for ventilation and / or air conditioning ducts. Furthermore, these breakthroughs may have for line installations. At the same time with the longest possible design of a car, the smallest possible wall thickness is sought in order to obtain as much space in the interior for a comfortable interior design.

A low overall height perpendicular to the planar extent of the side walls is also achieved if the side wall panels are made of steel.

In addition to the cut sheets of different material properties, in particular different material thickness, which are selected according to stress, the skeleton profiles are selected according to stress and inserted.

In order to allow a tension-free joining of the skeleton profiles to the inside of the outer panel, these joints are carried out by means of laser welding. The skeleton profiles are connected to each other horizontally and vertically, preferably by means of arc welding, since in this case greater demands are placed on a Fügespaltüberbrückung. The bigger one

Heat input is insignificant, since no connections with the bevelled are affected. Preferably, the column feet of the vertically extending skeleton profiles are formed with a widened / enlarged profile cross-section, in order to obtain a design of the annular frames that is suitable for the flow of power.

A particularly cost-effective and labor-saving production provides that the sheets of Au ßenwandmodule be tailored and joined together that arise when joining the sheets needed for recesses for windows and doors in the outer wall module. The particularly stressed areas, for example adjacent to corners of window or door recesses, are formed by sheets of greater strength, for example of greater material thickness, the remaining areas by sheets of lower strength, for example, lower material thickness. In the particularly stressed areas, no joining seams occur in the case of an outer sheet produced in this way. Thus, stable and yet lightweight and the lowest possible material thickness and height having side walls can be produced.

When assembling the Au ßenwandmodule preferably the outer panels are first connected by means of I joints, that is on the butt-end surfaces of the sheets and the Obergurtprofils, so that there is an offset-free Au ßenfläche. Subsequently, then further skeleton profiles on the inner surface of the

External bellows and optionally the Obergurtprofils secured by laser welding, the horizontally extending purlins on the butt weld the

Extend outer panels away. Subsequently, the connections to the other skeleton profile parts, which are already integrated in the assembled outer wall modules, preferably produced by arc welding.

For the insertion of the skeletal profiles, it is advantageous if the end edges, which are attached by means of a T-joint on the inner surface of the Au ßenbeblechung and / or Obergurtprofil before attaching, preferably by laser cutting, so or cut that the front edge to those occurring on the inner surface

Material offsets due to the different thicknesses of the various sheets and / or is adapted to a shape of the upper flange. If the side wall is made with a curvature in the horizontal course of the side wall surface, then the vertical skeleton profiles are also adapted to this curvature. The basic cross-section of the car body tapers along the longitudinal direction of the undercarriage end, so a corresponding adjustment for horizontal skeleton profile sections may be necessary or advantageous.

The skeleton, which essentially performs a stiffening function for the outer wall, is preferably formed so that the skeleton profiles, which are oriented along a first direction, which is vertical in a side wall of a car body, oriented, except for breaks for functional openings in one piece into the skeleton be inserted. On the other hand, the horizontally oriented profiles of the skeleton extending transversely are interrupted in each case by the vertically oriented profiles. Only along horizontally aligned functional openings, in one embodiment, the horizontal profiles running parallel to the functional opening are designed such that these are more than the functional openings

span interrupted, vertically extending profiles. One behind the other, the skeleton profiles are preferably connected to one another in order to improve a stiffening.

It is possible to individually clamp and attach the profiles of the framework to the outer panel. However, it may prove advantageous to add several individual profiles in a separate device before they as a prefabricated module on the

External bevelled be hung up.

During the joining process, the individual sheets, which form the outer panel of an outer wall module, are preferably inserted into an auxiliary frame or a supporting form and held there for the joining process.

In order subsequently to fasten the skeleton thereto or to build it up, it is provided in some embodiments that individual sheets, in particular second sheets, are provided with recesses which do not extend over the entire length

Material thickness extend. The outer surface is thus preserved undamaged. These recesses, for example, in the form of grooves, notches or slots

can be used to position herein abutting edges of the skeleton profiles and so facilitate a connection of the skeleton profiles with the Außenbeblechung.

Deviating from the procedure just described, skeleton parts can also be fastened to individual metal sheets of the outer panel, before the outer paneling the outer wall module is completely finished. Advantages and developments of the invention have already been partially described. Other embodiments and advantages will be apparent from the description of individual embodiments of the invention.

Embodiments and further features of the invention will be described with reference to an accompanying drawing. The individual figures of the drawing show:

Fig. 1 is a schematic representation of an outer wall module;

Fig. 2 is a schematic representation of the Au ßenbeblechung of

Outer wall module according to Fig. 1;

Fig. 2a is an enlarged detail of Fig. 2;

Fig. 3 is a schematic representation of the Au ßenbeblechung with on a

Inside attached vertical vertical framework profiles of the

Au ßenwandmoduls of Fig. 1;

Fig. 4 is a schematic representation of a detail of the Au ßenwandmoduls of Figure 1 for illustrating the formation of horizontally extending skeleton profiles in a dummy field.

Fig. 4a is an enlarged detail of Fig. 4;

Fig. 5 is a schematic representation of a lower end of the vertical

Skeleton profiles and their attachment to a base frame;

6a is a schematic representation of the attachment of a flat roof segment on the top chord formed by the top chord;

6b is a schematic representation of the attachment of a rounded,

barrel-shaped roof segment on the formed by the Obergurtprofil

top flange;

Fig. 7 is a schematic representation of a complete Au ßenwand a

Railway vehicle body, with a top chord formed by Obergurtprofile;

8 is a schematic plan view of an outer wall module on the carriage feeder with a length tolerance compensation; and

9a - 9c different welds for attaching the skeleton profiles of the

Outer plating. In Fig. 1 is a Au ßenwandmodul 1 is shown schematically. This comprises, an outer panel 3, which is closed at an upper end with a horizontally extending Obergurtprofil 2. The Außenbeblechung 3 of the outer wall module 1 is made of sheets, which at least first sheets 10 and second sheets 1 1 with different strength properties and the Obergurtprofil 2. On its inner side 17, which is shown in Fig. 1, a skeleton 4 is attached from rib profiles 5. In the outer panel 3, which on a Au ßenseite 18 (below the drawing plane) forms a smooth Au ßenfläche are recesses or

Functional openings 6 in the form of window openings 7 are formed. The first sheets 10 and second sheets 1 1 have different material thicknesses in the illustrated embodiment. The Außenbeblechung 3 with the Obergurtprofil 2 is as

self-supporting shear field formed. The skeleton 4 is used predominantly to stiffen this shear field and to form a flexural rigidity of the side wall.

The skeleton 4 of the outer wall module 1 according to FIG. 1 comprises along a first direction, in this case a vertical direction, oriented skeleton profiles 5a, which are formed as columns 51, and along a second direction oriented transverse to the first direction second skeleton profiles 5b, which serve as purlins 52 are formed. While oriented along the first direction skeleton profiles 5a as far as possible are designed in one piece and only at functional openings of the Au ßenwandmoduls

are interrupted, the parallel to the second direction oriented skeleton profiles 5b each "interrupted" by the vertically oriented skeleton profiles 5a .This means that the horizontally oriented skeleton profiles are arranged between the vertically oriented skeleton profiles 5a.Spread only along the horizontally extending edges of the window openings 7 in each case a skeleton profile 5b 'a plurality of vertically extending skeleton profiles 5a', which are interrupted at the function openings.

In Fig. 2, the Au ßenbeblechung of the outer wall module 1 of FIG. 1 is shown schematically. Good to see are first sheets 10 of a first material thickness and second sheets 1 1, each having a greater thickness of material perpendicular to its flat

Have expansion as the first sheets 10, and the upper flange 2. The areal extent of the first sheets 10 and second sheets 1 1 extends in each case in the plane of the drawing. A material thickness is thus oriented perpendicular to the plane of the drawing. It can be seen that the second sheets 1 1 in those areas of the

Außenbeblechung 3 are arranged at which during operation of the rail vehicle Car body particularly high voltages occur. These are, for example, the areas of Außenbeblechung 3 adjacent to the window corners and door corners.

The second sheets may have different thicknesses. The

Material thicknesses of the first sheets and the second sheets are selected according to the respective stress requirements of the particular area in which they are inserted. However, the second plates all have a greater material thickness than the first plates.

The individual sheets 10, 1 1 are precisely cut before joining, so that, when joined together, the recesses in the outer panel 3 serving as function openings 6 are virtually automatic. Such a manufacturing method, in which the already cut to size cut sheets are joined together, is also referred to as Tailored Blank method.

The first sheets 10 are interconnected with each other and with the second sheets 1 1 via laser welds 13, where the individual sheets 10 butt abutting each other. The laser welds are preferably made from the inside 17, from which the outer panel in FIG. 2 is shown. Also, the upper flange 2 and the adjacent sheet 10 or in other embodiments, the adjacent sheets are so, in particular dimensionally accurate and prefabricated that they butt abut each other and are connected via laser welding sewn seams 13 together. Here, the sheets of different material thickness 10, 1 1 and the upper flange 2 are each arranged so that the Au ßenfläche 18 is formed as a non-offset surface. The inner side 17, however, has at the transitions between the sheets of different material thickness 10, 1 1, and optionally to

Obergurtprofil offsets on. Good to see in Fig. 2, that in those areas where elevated voltages occur, no welds must be formed. As a result, a higher strength of the outer wall is achieved with less use of material.

In the illustrated embodiment, the top chord 2 is considered multiple

formed angled open profile. In other embodiments, a profile with a closed cross-section can also be used. Also in this case will be one formed by laser welding joint connection, which forms an offset-free outer surface.

As can be clearly seen in the enlarged detail, which is shown in FIG. 2 a, the upper flange profile 2 has a profile limb 41, which continues the outer panel 3 otherwise joined to the sheets 10, 1 1. In addition, the upper flange profile has a profile section 42 which is angled towards an inner side 17 towards the side wall surface or outer surface 18 formed by the sheets 10, 11. An upper side 43 of the profile section 42 forms a first bearing surface 44 for roof segments (not shown). At one of the Au ßenseite 18 remote from the end 45 of the profile section 42, this has a double angulation, so that a second substantially horizontally extending second support surface 46 for other roof segments (not shown) is formed. The profile section 42 is designed so that roof segments of different roof shapes are all attached to the same Obergurtprofil 2.

In Fig. 3, the Au ßenbeblechung 3 of the Au ßenwandmoduls 1 is shown together with attached on the inside 17 continuous, the entire vertical extent of the outer wall module spanning, designed as columns 51 skeletal profiles 5. The pillars 51 are adjacent to vertical edges of the

Function openings 6 arranged. The skeleton profiles are added with their end faces on the inside 17 of the Beblechung (comprising the first sheets 10, the second sheets 1 1 and the upper flange 2) by means of laser welding via a T-joint. In this case, a cohesive connection is formed. This will result in minimal

Stresses during joining. Preferably, the welds are double-sided. The welding is carried out from the inside 17 and a

Durchschwei ßung the Au ßenbleche avoided in any case. A continuous

Weld allows optimal uninterrupted power transmission.

FIG. 4 shows a section of a dummy field region of the outer wall module 1 according to FIG. 1. In addition to the vertical columns 51 are horizontally extending

Gerippeprofile and non-continuous vertical skeleton profiles attached to the inside 17 of the outer panel 3. It is easy to see that the horizontal skeleton profiles, which are designed as purlins 52, have a lower height than the vertical columns 51 to make room for air conditioning ducts. Furthermore, the purlins 52 have openings 53 for cables and cables. The skeleton profiles are preferably designed as open sheet metal profiles. Preferably L-profiles, T-profiles, Z-profiles or U-profiles are used. These are inserted into the frame in such a way that only the "front edges" of the profiles are adjacent to the outer panel on which the frame is stiffened to reinforce the external covering, which means that the side surfaces used as abutting edges of the frame profiles to connect these with the outer panel and the to the

An outer Bellows adjacent, have substantially only a width corresponding to a material thickness of the sheet from which the respective profile is made. In this way it can be achieved that no areal material doubling arises adjacent to the outer panel, which would bring about a tendency to corrosion for crevice corrosion.

The skeletal profile members are preferably joined together by arc welding to meet gap bridging requirements.

The front edges of the skeletal profiles are preferably cut by means of laser cutting so that they have notches 22 which at different

Material thicknesses of the sheets are adjusted, which form offsets on the inside 17 at the joints. Likewise, the front edges are optionally present

Curves of the outer panel 3 adapted. Thus occurs during joining no or only minimal joint gap between the front side of the respective skeleton profile and the inside of the Au ßenbeblechung.

In Fig. 4 is an example of a section of an image field between two window openings. Adjacent to the corner regions 28, the Au ßenbeblechung each formed by a second plate 1 1, which has a greater thickness of material 15 perpendicular to the planar extent than a material thickness 16 of the first sheet 10 also perpendicular to its planar extent. The first sheet 10 and the second sheet 1 1 are executed via a 17 of the inside of the ßenbeblechung Au 17

Laser weld connected. Here, the first plate 10 and the second plate 1 1 each abut each other with their end faces. An outer surface 18 of the Au ßenbeblechung 3 is executed without offset. On the other hand, an offset 24 results on the inside 17 at the transition from the first sheet 10 to the second sheet 1 1. To stiffen the Au ßenbeblechung 3 a skeleton 4 is connected to this. The skeleton comprises in the illustrated section a vertically continuous, formed as a pillar 51 skeleton profile 5a and horizontally extending as purlins 52 skeleton profiles 5b, which are interrupted by the perpendicular skeleton profile 5a. The rib profiles 5a, 5b are each formed as L-profiles and abut with frontal abutting edges 19, 20, 21 to the outer plate each with a T-joint. As can be seen, for example, has the abutting edge 21 of the horizontally extending rib profile 5b a notch 22 in a region 23, with which the abutting edge 21 abuts the second plate 1 1, which has a greater material thickness 15 than the first sheet 10. The material thickness of the first sheet 10 is connected to the

Reference numeral 16 marked. The T-joints of the abutting edges 19, 20, 21 with the outer panel 3, i. the first sheets 10 or the second sheets 1 1, can be carried out in different ways. This is illustrated by way of example in FIGS. 9a-9c.

The variant shown in FIG. 9a represents a so-called I-seam 30. FIG. 9b shows a one-sided fillet weld 31 and FIG. 9c shows a two-sided fillet weld 32 of the T push. The seams can be executed in each case without or with the supply of a suture and are preferably carried out as a continuous laser welds.

In Fig. 4, additional skeleton members 25 are further inserted for Winkelaussteifung between horizontally extending below the window openings 7 skeleton profiles 5b and the vertical skeleton profiles 5a. This will make a higher

Stiffening of the skeleton 4, and indirectly the Außenbeblechung 3 reached.

It should be emphasized that the additionally inserted skeletal elements 25 meet only with end faces as abutting edges on the outer plate, which can be connected by means of welds with the Au ßenbeblechung cohesively. A flat

Material doubling does not take place.

Both the vertical and horizontal frame profile parts with each other and also produced in several pieces skeleton profile parts are preferably formed so that a profile end meets a profile surface or meet two profile end faces, so that even in the skeleton no extensive material doubling occur. Preferably, these joints are also laser welding or where Gap bridging requirements dictate this, formed by arc welding.

The skeleton profiles 5, 5a, 5b are materially joined to the at least first and second sheets 10, 11 as well as to the top flange profile 2 (cf. FIG. 1), without one of the at least first and second sheets 10, 11 or the top flange profile 1 1 to

penetrate.

In Fig. 4a, a detail of Fig. 4 is shown enlarged. Shown is the second sheet 1 1, which is inserted adjacent to the lower corner portion 28 of a window opening 7 in the outer panel 3. The second plate 1 1 is inserted into a first sheet 10. At the laser weld 13, an offset 24 occurs on the inner side 17.

Correspondingly, the skeleton profiles 5a, 5b each have a notch 22 in the regions 23 at the abutting edges 19, 20, 21 in which the abutting edges "hit" the offset 24. If the second metal sheet 11 is located at the edge 26, at the the offset 24 occurs, provided with a chamfer, so the notches 22 are preferably formed adapted to the bevel accordingly.

In Fig. 5, a lower completion of a vertical skeleton profile, in particular of a column 51 designed as a skeleton profile is shown. The pedestal of this skeleton profile has an enlarged cross-section compared to the rest of the profile. This is advantageous in order to obtain a good flow of force at the connection point with the underframe 60 or a frame profile 61 attached thereto. About trained in the base 60 skeleton profile 61 and the columns of Au ßenwandmodule 1 and corresponding skeleton profiles in the roof segment (not shown) can thus be formed transversely to the longitudinal axis of the carcass oriented annular frames.

In Fig. 6a, the Auflagerung a flat roof segment 71 on the Obergurtprofil 2 is shown schematically. The Flachdachsegment 71 is here on the second

Supported surface 46 and an end portion 47 of the first bearing surface 44.

In Fig. 6b, the Auflagerung a round, barrel-shaped roof segment 72 on the Obergurtprofil 2 is shown schematically. In this embodiment, the

Auflagerung on the first bearing surface 44 on the top 43 of the angled profile portion 42 of the upper flange 2 instead. It turns out that a suitably chosen Obergurtprofil opens up the possibility that different roof segments can be stored and secured in one and the same car body on the upper flange formed by the Obergurtprofil regardless of the sidewall module division.

The preferably standardized manufactured Au ßenwandmodule 1 are then to a side wall 91 or at least one preferably middle

Side wall portion 81 joined together, as shown in Fig. 7. Here, the front surfaces of the Au ßenbeblechungen including the end faces of the Obergurtprofile are butt joined by means of a Laserschwei rung without overlaps. The joining is done so that an offset-free outer surface 18a is created. The inside 17a, however, may have offsets or jumps.

The individual side wall or outer wall modules 1 are each formed slightly trapezoidal in a preferred embodiment for side walls long car bodies. A lower edge 82 is shorter than an upper edge 83 of the upper flange profile 2 on its upper side 43. When joining a side wall 91, one obtains a slightly curved outer wall or a middle side wall section 81, which has an elevation or protrusion. This is shown schematically in FIG. All outer wall modules 1 have the same side wall height 96.

The outer wall modules 1 are preferably designed in such a way that they are preferably provided on both vertically extending side edges 84, 85 (see also FIG

Blind field area end. When joining the Au ßenwandmodule 1, the side edges 84, 85 form a continuous, almost vertically extending impact in a reactive field region of the side wall. When joining the Au ßenwandmodule 1 there is thus only one butt joint, which can be welded continuously. After assembling the Au ßenwandmodule in such a way that an offset-free outer surface 18a is formed, on the inner side 17a further weld seam 13 covering horizontal skeleton profiles 5b are welded and connected to the rest of the skeletal profiles of the skeleton 4. The joining to the inside by means of laser welding a T-joint, the bonding of the skeleton profiles with each other preferably by means of arc welding ßens. In the side wall 91 shown in Fig. 7, the middle side wall portion 81, which is joined from the standardized outer wall modules, an arcuate

Elevation on. This is in the form of a polygon, which is formed by the lower edge or the upper edge of the side wall portion or top of the Obergurtprofils. The elevation or protrusion is adapted to that of the associated undercarriage and should compensate for a "deflection below the theoretical zero position".

In the side wall 91 shown in Fig. 7 are at both ends 92, 93 outer wall end modules 1 with a recess in the form of a door opening 8 are added. The addition of these designated as Seitenwandendmodule 94 Au ßenwandmodule 1, which otherwise standardized to the same procedural principles as the rest

Outside wall modules 1 are made, via a joint 95 with tolerance compensation, in particular a length adjustment to the corresponding prefabricated

Understand and possibly trained there door openings to facilitate or allow. In this case, specially manufactured sheets can be inserted with their end faces between the Seitenwandendmodule 94 and the middle side wall portion 81 butt-butt. Likewise, however, other permitting a joining tolerance

Welding possible, but then usually a post-processing of the

External surface required in order to restore the freedom of displacement in the area of the joint.

As can be seen from Fig. 8, a car body floor plan usually tapers to the car ends, d. H. to the ends 92, 93 of the side wall 91. In Fig. 8 is a plan view of such a cross-section collection is shown schematically. Between the outer wall end module 1 with the door opening 8, which is used as Seitenwandendmodul 94, and the middle side wall portion 81, the joint is again shown with the longitudinal tolerance compensation. A first distance 98 between the

External panel 3 of Seitenwandendmodule 94 at the end 92 of the side wall 91 and a Wagenkastenmittelachse 97 is less than a second distance 99 between the Au ßenbeblechung 3 of the end 92 of the side wall 91 facing last outer wall module 1 of the central side wall portion 81st

It will be apparent to those skilled in the art that the exact shape and arrangement of the second panels within the outer panel is dependent on the particular static requirements of the exterior wall of the carbody into which they are to be inserted. The invention is described here by way of example for Seitenau ßenwände. Likewise, however, the invention can also be used for exterior walls or outside wall modules which are arranged in a roof area of a car body. In one possible embodiment, the outer baffle is welded between a top flange profile formed as a top flange of a side wall and a top flange profile of an opposite side wall.

Furthermore, an outer wall according to the invention may also be a front wall (or a part thereof) of a car body, wherein a front outer wall may be a passage module for passage into other cars or a driver's cab.

In addition, the invention should be understood that instead of second sheets with a material thickness which differs from that of the first sheets, and second sheets can be used, the same material thickness as the first sheets, but other physical material properties (eg, a different deformation strength) as the first sheets have. It is likewise possible to use second sheets which have both a material thickness differing from the first sheets and differing physical material properties. A significant advantage may then be that the abutting edges of the skeletal profiles need not be disengaged or only slightly disengaged in the transition from a first to a second plate, since no or only a small offset is overcome. It is understood that also sheets with more than two material thicknesses or strengths can be used.

While in the figures by way of example slightly curved Au ßenwände or

Outside wall modules are shown, the invention is readily applicable to even or kinked outer walls or outer wall modules.

It has been shown that with the "single-shell" steel differential design described here "overlong" and relatively "thin-walled" body boxes are produced, the ßenbreite (which is due to the requirement under all operating conditions despite standardized

To have to comply with vehicle boundary profile) can ensure sufficient for the passenger comfort sufficient interior width. LIST OF REFERENCE NUMBERS

1 outer wall module

2 top chord profile

3 exterior paneling

4 skeletons

5 frame profile

5a, 5a 'skeleton profile (vertical)

5b, 5b 'frame profile (horizontal)

6 function openings

7 window openings

8 door openings

10 first sheets

1 1 second sheets

13 laser weld

15 material thickness second sheets

16 Material thickness first sheets

17 inside

17a inside

18 outer surface

18a outer surface

19, 20, 21 abutting edges

22 notch

23 area

24 offset

25 skeleton element for angle bracing

26 edge

28 corner areas

30 I-seam

31 one-sided fillet weld

32 two-sided fillet weld

41 profile legs

42 profile section

43 top

44 first bearing surface opposite end

second bearing surface

end

columns

purlins

breakthroughs

undercarriage

Frame profile (in the base frame)

Flat roof segment

barrel-shaped roof segment

Sidewall portion

lower edge

top edge

, 85 side edges

Side wall

, 93 ends

Seitenwandendmodule

Joint with tolerance compensation

Sidewall height

Carriage centerline first distance

second distance

Claims

claims

1 . Method for producing a car body shell of a rail vehicle comprising the steps:

Providing an underframe (60),

Finishing of exterior wall modules (1) according to a tailored blank method, in which cut sheets (10, 1 1) of different material properties butt joints by means of laser welding to a Seitenwandf laugh

be joined together so that an Au ßenfläche (18) of the Seitenwandf surface without jumps in material at the joints arises, and wherein in the manufacture of Au ßenwandmodule (1) on an inner side (17) of the side wall surface from a skeleton profiles (5, 5 a, 5 b) formed Skeleton (4) is added,

Merging several Au ßenwandmodule (1) at least to a middle side wall portion (81), wherein the Au ßenwandmodule (1) butt joined by laser welding are joined together without in the

O ßenfläche (18 a) an offset at the joints of the Au ßenwandmodule (1) occurs,

Attaching at least the middle side wall portion (81) and

optionally formed as Seitenwandendmodulen (94)

Au ßenwandmodulen (1) and optionally Stirnendmodulen on the

Base (60) and attaching roof elements (71, 72), characterized

characterized in that the step of manufacturing an outer wall module (1) comprises attaching an angled upper chord profile (2) to the side wall surface, wherein the upper chord profile (2) terminates an upper edge of the outer wall module (1) and butt-welding to adjacent ones of the sheets by laser welding ( 10, 1 1) of different material properties is added, without that on the Au ßenfläche (18) of the side wall surface, a jump in material is formed, wherein the Obergurtprofil (2) has a relation to the Au ßenfläche (18) of

Side wall surface to the inside (17) of the outer wall module (1) out

in the step of attaching the skeleton (4) on the inside (17) of the side wall surface, the skeleton profiles (5, 5a, 5b) with end-side abutting edges (19, 20, 21) to the inside ( 17) of the side wall surface, including the upper chord profile, are attached via T joints and fastened in a material-locking manner via laser welds (13).

2. The method according to claim 1, characterized in that the underframe (60) is produced along its longitudinal direction by means of a projection and / or provided and the outer wall modules are made trapezoidal, so that when joining the Au ßenwandmodule to the

Sidewall portion (81), this side wall portion (81) having a

Projection or elevation is made, which is largely adapted to the projection of the undercarriage.

3. The method according to any one of the preceding claims, characterized in that the Au ßenwandmodule (1), from which the middle side wall portion (81) is formed, all the same side wall height (96).

4. The method according to any one of the preceding claims, characterized in that the sheets of Au ßenwandmodule (1) so tailored and

be joined together that result in the joining of the sheets (10, 1 1) function openings (6) in the Au ßenwandmodul (1).

5. The method according to any one of the preceding claims, characterized in that the provided with the Obergurtprofil (2) side wall surface as

self-supporting shear field is executed and when attaching the skeleton (4) on the inside (17) of the side wall surface including the top flange (2) transversely to the horizontal longitudinal extent of the top flange (2) oriented continuous vertical rib profiles as columns (51) with end faces over T joints be connected by laser welding with the inside (17) of the side wall surface.

6. The method according to any one of the preceding claims, characterized in that between the vertical skeleton profiles (5a), which span as the columns (51) the entire vertical extent of the outer wall module, horizontal skeleton profiles (5b) as purlins (52) and not continuous entire vertical extent of the outer wall module spanning

Grooved profiles (5a) are added as local skeleton reinforcements by means of laser welding on the inside (17) of the side wall surface.

7. The method according to any one of the preceding claims, characterized in that attached or formed on the base frame and in the roof elements skeleton profiles, which upon assembly of the side wall portion and a similar second side portion with the base frame and the attachment of the ceiling elements with the columns (51). the outer wall modules (1) of the side wall sections are joined together to form circumferentially formed annular frames.

8. The method according to any one of the preceding claims, characterized in that the skeleton profiles (5, 5a, 5b) to the at least first and second sheets (10, 1 1) and the Obergurtprofil (2) are materially joined, without one of the at least first and second sheets (10, 1 1) or the upper belt profile (1 1) to penetrate.

9. Exterior wall module (1) of a car body of a rail vehicle

full:

a formed as a self-supporting shear field module outer panel (3), which is assembled from sheet-shaped plates (10, 1 1) of different properties (15, 16), wherein the sheets each butt-jointing with their respective end faces transverse to the surface extension of the individual sheets ( 10, 1 1) are adjacent to each other and continuous

Laser welding seams (13) are joined together in such a way that the individual sheets on a Au ßenseite the shear field module ßenfläche an offset Au (18) form, and the sheets of different properties at least first sheets (10) and second sheets (1 1) include and second plates (1 1) each have a greater resistance, in particular strength and / or greater material thickness, than the first plates (10), and the second plates (1 1) areas of Au ßenbeblechung (3) form, in which during operation of a Rail vehicle in a car with the outer wall module manufactured car body increased voltages occur, and

a skeleton (4) formed from skeleton profiles,

characterized in that

a Obergurtprofil (2) an upper edge of the Au ßenwandmoduls (1) terminates and butt welding by means of laser welding adjacent to the at least first and second sheets (10, 1 1) attached without on the Au ßenfläche (18) of Side wall surface a jump in material is formed, wherein the upper flange profile (2) relative to the outer surface (18) of the side wall surface to the inner surface of the Au ßenwandmoduls out bent profile section (42) and the skeleton profiles (5, 5a, 5b) of the skeleton (4) with frontal abutting edges (19, 20, 21) to the inside (17) of the side wall surface including the

Obergurtprofils (2) mounted over T-joints and are secured by laser welds (13) cohesively.

10. Au ßenwandmodul (1) according to claim 9, characterized in that the

Gerippeprofile (5, 5a, 5b) to the at least first and second sheets (10, 1 1) and the upper flange (2) are firmly bonded without the

Welding one of the at least first and second sheets (10, 1 1) or the upper flange profile (1 1) is performed penetrating.

1 1. Car body shell of a rail vehicle comprising:

a base (60),

Side walls (91) which are assembled from outer wall modules (1) whose outer panel (3) is produced according to a tailored blank method, in which cut sheets of different material properties are butt-joined by laser welding to form a side wall surface such that an outer surface (FIG. 18) of the side wall surface without material jumps at the abutment points, wherein the sheets at least first sheets (10) and second sheets (1 1) comprise, and wherein the outer wall modules (1) on an inner side (17) of the side wall surface of a skeleton (5, 5a, 5b) comprise fabricated framework (4),

wherein the outer wall modules are butt joined together by means of laser welding, without material jumps occurring on the outer surface (18a) of the side walls (91),

and one or more roof elements (71, 72) and optionally

Stirnau ßenwandmodule,

characterized in that

the Au ßenwandmodule (1) each have a top edge of the Au ßenwandmoduls (1) final Obergurtprofil include, which is butt welding by means of laser welding adjacent to the at least first and second sheets (10,11) added without on the Au ßenfläche (18) the side wall surface a jump in material is formed, wherein the upper flange profile (2) has an outer surface (18) opposite the outer surface (18) of the inner side (17) of the

Exterior wall module (1) towards angled profile section comprises and the Obergurtprofile (2) of the joined Au ßenwandmodule (1) form a top flange on which the one or more roof elements (71, 72) are fixed, wherein the skeleton profiles (5, 5a, 5b) of the skeleton (4) with frontal abutting edges (19, 20, 21) on the inside (17) of the

Side wall surface including the upper flange profile (2) mounted via T-joints and secured by laser welds (13) are cohesively.

12. Wagenkastenrohbau according to claim 1 1, characterized in that the

Underframe along its longitudinal direction has a projection and the Au ßenwandmodule are made trapezoidal and are joined together so that at least one side wall portion (81), the ßenwandmodßen Au (1) is assembled, made with a projection or elevation, which is connected to the projection of the Underframe (60) is largely adapted and welded to the base (60).

13 Wagenkastenrohbau according to claim 1 1 or 12, characterized in that the skeleton profiles (5, 5a, 5b) to the at least first and second sheets (10, 1 1) and the Obergurtprofil (2) are firmly bonded, without the weld one of the at least first and second sheets (10, 1 1) or the Obergurtprofil (1 1) is carried out penetrating.

14 Wagenkastenrohbau according to claim 1 1 to 13, characterized in that the Obergurtprofil is formed such that roof elements (71, 72) of different roof shapes are appendable.