Method and apparatus for manufacturing components with adapted base area
Patent Information
- Authority / Receiving Office
- DE · DE
- Patent Type
- Patents
- Current Assignee / Owner
- THYSSENKRUPP STEEL EUROPE AG PATENTE PATENT DEPARTMENT
- Filing Date
- 2016-09-29
- Publication Date
- 2026-07-09
AI Technical Summary
In the production of deep-drawn components, particularly those with U-shaped or hat-shaped cross sections, elastic springback causes shape changes leading to insufficient dimensional accuracy and surface defects such as residual waviness and thickness fluctuations, especially in high-strength steel and aluminum materials with small sheet thicknesses.
The method involves preforming a workpiece to create a component with excess material in the transition area between the base and frame areas, ensuring the base area retains its shape during calibration, thereby reducing or eliminating surface defects by controlling the material flow through the transition area.
This approach results in a dimensionally stable component with smooth surfaces, minimizing surface defects and maintaining the intended geometry without the need for additional trimming, by distributing excess material strategically in the transition areas.
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Abstract
Description
[0001] The invention relates to a method for manufacturing a component, the method comprising preforming a workpiece to a preformed component with a bottom area, a frame area and optionally a flange area, such that the preformed component has an excess of material for the frame area and / or the bottom area and / or optionally the flange area, and calibrating the preformed component to an at least partially finished component with a bottom area, a frame area and optionally a flange area.The invention further relates to a device for manufacturing a component, in particular for carrying out a method according to the invention, with a preforming tool for preforming a workpiece into a preformed component with a bottom area, a frame area and optionally a flange area, such that the preformed component has an excess of material for the frame area and / or the bottom area and / or optionally the flange area, and with a calibration tool for calibrating the preformed component into a component that is at least partially finished with a bottom area, a frame area and optionally a flange area.
[0002] In the production of deep-drawn components, especially open, U-shaped, or hat-shaped profile components, for example by deep drawing, unavoidable elastic springback after removal of the component from the die usually results in deformations, such as springback between the base and the sides of the component, or curvature of the sides and / or base. Consequently, components manufactured in this way are not sufficiently dimensionally accurate, depending on the application. This effect is more pronounced with high-strength steel or aluminum alloys and thin sheets.
[0003] To counteract this, a calibration process is used, in which a preformed component (preform) with an excess of material (also called material allowance or compression allowance) is first produced, for example, by deep drawing. The indifferent springback of the component that occurs when the load is removed is then realigned by a calibration step using superimposed compressive stress, so that a component that is at least partially final-shaped and dimensionally accurate is produced.
[0004] In the prior art, this method is specifically designed to accommodate the excess material for the calibration process in the base area in the form of one or more waves. During the calibration itself, however, each wave in the base area collapses into two or more smaller waves. Depending on the additional lengths produced by the excess material, these subsequently collapse into even smaller waves. This effect can repeat itself several times until the calibration die reaches its final position.
[0005] The described effect depends on the amount of excess material, the sheet thickness, the base width and the wave height, and leads to deviations from a uniform and / or smooth surface (surface defects) in the base area of the component, which is at least partially formed, with negative effects on the surface quality in the form of residual waviness, surface irregularities and / or sheet thickness variations or combinations of the aforementioned defects.
[0006] Against this background, the object of the invention is to provide a method and a device that reduces or avoids the described surface errors and also enables sufficiently smooth surfaces in the bottom area of the calibrated component after the calibration process.
[0007] According to a first teaching of the invention, the problem is solved in a generic method of the invention by the fact that the bottom area of the preformed component essentially has the geometry and / or the local cross-sections of the bottom area of the component that is at least partially final-formed.
[0008] In contrast to the prior art, the alternative approach is pursued whereby the base area of the preformed component essentially has the same geometry as the base area of the at least partially final-molded component. For example, the base area can be flat. Therefore, the base area requires little or no deformation during calibration, further reducing the risk of undesirable surface defects in the at least partially final-molded component. In other words, the base area of the preformed component can essentially retain its shape during calibration.This means that the excess material is provided, for example, predominantly in the area of the base of the frame and / or the edge or border area of the base, and that uniform areas are provided in the preformed component, at least partially, as well as in the at least partially finished component. Preferably, the excess material is provided only in the edge area of the base. Particularly preferably, the excess material is provided by the shape of the transition area between the base area and the frame area and / or, if a flange area is present, by the shape of the transition area between the flange area and the frame area of the preformed component.It has been shown that in this way the advantages of methods for manufacturing dimensionally accurate components, which require no or only minimal trimming, can be retained, while at the same time surface defects in the base area and / or optionally in the flange area can be reduced or even avoided.
[0009] The base area of the preformed component preferably has no excess material for calibration or even exhibits a material deficiency within the preformed component. The excess material actually required for the base area is then preferably provided primarily by the transition area between the base and the frame area of the preformed component.
[0010] A uniform and / or smooth surface is understood here to mean that the shape profile of the surfaces produced according to this invention, in particular of the bottom area of the component that is at least partially finished, has only waves with a small amplitude, for example less than 0.2 mm, and a large wavelength, for example greater than 10 mm.
[0011] The workpiece is, for example, a substantially flat circuit board, such as a sheet of metal. Preferably, the workpiece is made of steel. However, other metallic materials, such as aluminum, can also be used. The component is preferably a sheet metal part.
[0012] Preforming is carried out primarily by means of a deep-drawing process, which can be performed in one or more stages. Any combination of drawing, embossing, raising, edging, and / or bending is also conceivable. The method for manufacturing the preformed component can therefore be customized. The preformed component obtained through preforming can be considered to be essentially a near-final-size component, exhibiting the intended geometry with only minimal deviations.
[0013] Calibration can therefore be understood, in particular, as the final forming or shaping of the preformed component, which can be achieved, for example, through one or more pressing operations. Calibration specifically includes an upsetting process. For example, the frame area, the bottom area, optionally the flange area, and / or the transition areas of the preformed component are subjected to upsetting.
[0014] However, it is possible that the component, which is at least partially shaped, can still undergo further processing steps, such as the insertion of connection holes and / or a trimming operation and / or reshaping, such as pressing and / or bending. However, preferably no further major shaping steps are necessary.
[0015] The described pre-forming and calibration processes are preferably carried out sequentially.
[0016] According to a preferred embodiment of the inventive method, the shape of the transition area between the base and frame areas of the preformed component results in a raised or lowered base area of the preformed component. This allows sufficient excess material to be introduced into the preformed component in the transition area without having to modify the geometry of the entire base area. Rather, the base area can be raised or lowered as a whole. Preferably, a raised base area is achieved by a transition area that is essentially U-shaped in cross-section. In particular, a substantially uniform raising or lowering over the entire base area is provided. The base area of the preformed component is raised or lowered, especially relative to the frame base.In comparison to the bottom area of the finished component, the bottom area of the preformed component is therefore also raised or lowered. A raised or lowered bottom area is understood, particularly from the same frame end level or frame head (length level), to be a bottom area that is raised or lowered compared to the lower bottom level (zero level) of a component, where the same excess material is achieved by one or more bottom ridges extending over the entire bottom area.
[0017] According to a preferred embodiment of the inventive method, the excess material is provided essentially or exclusively by the transition area between the base and frame areas of the preformed component. This eliminates the need for any further geometric modifications in the base area of the preformed component to provide the excess material. This, in particular, enables a virtually defect-free and smooth base area on the component, which is at least partially finished.
[0018] According to a preferred embodiment of the inventive method, the shape of the transition area between the base and frame areas of the preformed component, viewed in cross-section, provides additional length for the base and / or frame areas of the preformed component. By providing excess material in the form of additional length, the risk of material defects and uneven surfaces on the at least partially finished component is further reduced, for example, in contrast to excess material in the form of waves distributed in the base area.
[0019] According to a preferred embodiment of the method according to the invention, calibrating the preformed component to the at least partially finished form results in a material flow into the frame area of the preformed component. For example, the material flow occurs from the transition area and / or the bottom area of the preformed component. This can have the advantage that, due to the excess material, no additional extension of the frame area of the preformed component is necessary, since sufficient material can be provided in the frame area by the material flow.
[0020] According to a preferred embodiment of the inventive method, preforming is carried out by a deep-drawing operation with or without blank holders. Preforming with preferably spaced blank holders improves material guidance and process stability. However, for components with simple geometries, such as U-shaped or hat-shaped components in cross-section, blank holders can be omitted during deep drawing. This embodiment is also referred to, for example, as embossing the base with raising the frame. This process can optionally be carried out in one or more process steps.
[0021] According to a preferred embodiment of the method according to the invention, the bottom region of the preformed component is subjected to a force during calibration, which enables the bottom region of the preformed component to compress and essentially prevents the excess material from collapsing. For example, the bottom region is subjected to force on both sides. This results in hardening in the bottom region during compression without causing surface defects.
[0022] According to a preferred embodiment of the method according to the invention, preforming is carried out in a preforming tool comprising a preforming punch, a preforming die, and a preforming die bottom movable relative to the preforming die. The workpiece is arranged between the preforming punch and the preforming die bottom, and the workpiece is preformed by a relative movement between the workpiece with the preforming punch and the preforming die bottom on the one hand, and the preforming die on the other. For example, the workpiece is fixed between the preforming punch and the preforming die bottom, for example, by clamping. Optionally, blank holders or sheet metal holders can also be provided, which enable more reliable forming, particularly with more complex component geometries. With this embodiment, preforming can be implemented with minimal process engineering effort and can be integrated, in particular, into press-based processes.
[0023] According to a preferred embodiment of the method according to the invention, calibration is carried out by a calibration tool comprising a calibration punch, a calibration die, and a calibration die bottom movable relative to the calibration die. The preformed component is arranged between the calibration punch and the calibration die bottom, and the preformed component is calibrated by a relative movement between the preformed component with the calibration punch and the calibration die bottom on the one hand, and the calibration die on the other. In particular, by using separate designs for the calibration die and the calibration die bottom, the forces acting during calibration can be controlled precisely in terms of time and location. Furthermore, this embodiment allows calibration to be implemented with minimal process engineering effort and, in particular, to be integrated into press-based processes.
[0024] According to a preferred embodiment of the method according to the invention, for calibrating the preformed component, the calibration die frames of the calibration tool, which define the flange area of the at least partially finished component, are moved towards each other. The preformed component can thus initially be inserted into the calibration tool with the calibration die frames open, which can then be closed. This makes it possible, in particular, to reliably insert even highly spring-backed components into the calibration tool.
[0025] According to a preferred embodiment of the method according to the invention, the calibration die frames of the calibration tool used for calibrating the preformed component can be designed such that the calibration die frames can preferably be moved in the optional flange area of the preformed component.
[0026] According to a second teaching of the invention, the aforementioned problem is solved in a generic device by designing the preforming tool in such a way that the excess material is provided essentially by the shape of the transition area between the bottom area and the side area, and optionally essentially by the shape of the transition area between the flange area and the side area of the preformed component. This is achieved, for example, by the geometry of the preforming tool, such as the preforming die and / or the preforming die bottom of the preforming tool.As previously explained, the device does not distribute the excess material over the entire base area of the preformed component (for example, in the form of one or more waves), but instead concentrates it in the transition area, primarily between the base and frame areas, and optionally, primarily through the shape of the transition area between the flange and frame areas of the preformed component. This allows the advantages of methods for manufacturing dimensionally accurate components to be combined with further reduced or even eliminated surface defects in the base area.
[0027] According to a preferred embodiment of the device according to the invention, the preforming tool comprises a preforming punch, a preforming die, and a preforming die bottom that is movable relative to the preforming die. This makes it possible to position the workpiece between the preforming punch and the preforming die bottom, preferably fixing it in place, and to preform the workpiece by means of a relative movement between the workpiece with the preforming punch and the preforming die bottom on the one hand, and the preforming die on the other. Optionally, the preforming tool also has, in particular, external hold-downs or sheet metal holders, which can positively control the material flow, especially with more complex component geometries, in order to ensure, in particular, a wrinkle-free forming process. With this design, preforming can be carried out with minimal process engineering effort, and the preforming tool can be integrated, in particular, into a press.
[0028] According to a preferred embodiment of the device according to the invention, the calibration tool comprises a calibration punch, a calibration die, and a calibration die base movable relative to the calibration die. This allows the preformed component to be positioned and preferably fixed between the calibration punch and the calibration die base. The preformed component can then be calibrated by a relative movement between the calibration punch and the calibration die base on the one hand, and the calibration die on the other. As already explained, the forces acting during calibration can be precisely controlled in terms of both time and location by using separate designs for the calibration die and the calibration die base. Furthermore, calibration can be implemented with minimal process engineering effort, and the calibration tool can be integrated, in particular, into a press.
[0029] According to an alternative embodiment of the device according to the invention, the movable calibration die bottom can be omitted. In order to introduce the pre-formed component into the tool during the calibration process, pre-advancing, spring-loaded inserts can be provided in the calibration punch, which press the component into the die in advance. The spring-loaded inserts are then displaced into the punch when the tool closes. This results in a simpler tool design.
[0030] According to a preferred embodiment of the device according to the invention, the calibration die comprises at least two separate calibration die frames that are movable relative to each other. The preformed component can thus initially be inserted into the calibration tool with the calibration die frames open, which can then be closed, thereby facilitating the insertion of preformed components with strong springback properties.
[0031] With regard to further embodiments of the device according to the invention, reference is made to the descriptions of the method according to the invention.
[0032] The preceding and subsequent descriptions of process steps according to preferred embodiments of the method are intended to also disclose corresponding means for carrying out the process steps by preferred embodiments of the device. Likewise, the disclosure of means for carrying out a process step is intended to disclose the corresponding process step itself.
[0033] The invention will now be explained in more detail using an exemplary embodiment in conjunction with the drawing. The drawing shows in
[0034] Fig. 1a–c a schematic representation of a calibration according to the state of the art;
[0035] Fig. 2a a schematic representation of a preformed component in accordance with the state of the art;
[0036] Fig. 2b, c schematic representations of exemplary preformed components from embodiments of the inventive method;
[0037] Fig. 3a, b schematic representations of an exemplary preforming tool and an exemplary calibration tool according to an embodiment of a device according to the invention; and
[0038] Fig. 4 a schematic representation of the sequence of an embodiment of a method according to the invention.
[0039] Fig. Figures 1a–c show a schematic representation of a calibration process according to the prior art. In the prior art, it is provided that an excess of material for the calibration process is used in the form of one or more waves in the base region of a preformed component. 1 to provide and thus distribute over the entire floor area ( Fig. 1a) When calibrating using a crushing stamp2 and a crusher 4 However, every wave collapses in the base area of the component. 1 in turn to two or more smaller waves ( Fig. 1b) Depending on the additional lengths produced by the excess material, these subsequently fail in turn into two even smaller higher-order waves ( Fig. 1c). This effect can be repeated several times until the calibration stamp reaches its final position.
[0040] Fig. Figure 2a shows a schematic representation of the pre-formed component. 1 out of Fig. 1. According to the state of the art. The component 1 It exhibits excess material, particularly in its base area, in the form of a ridge extending across the entire base. The dashed line 6 This indicates the frame end level or length level aligned with the frame end. The dashed line 8shows the area below ground level (zero level) of the pre-formed component. 1 to.
[0041] The Fig. Figures 2b and c now show schematic representations of exemplary pre-formed components. 10a , 10b , which are produced within the framework of exemplary embodiments of the inventive process. Regarding the components 10a , 10b The excess material is determined by the shape of the transition area. 16 between the floor area 12 and the frame area 14 provided by the pre-formed component. The shape of the transition area. 16 between the floor area 12 and the frame area 14 the pre-formed components 10a , 10b leads to a level raised above zero ( Fig. 2b) or below the zero level 8 lowered ( Fig. 2c) Base area of the pre-formed component. The excess material is exclusively absorbed by the respective transition area. 16 between the floor area 12 and the frame area 14 of the pre-formed component 10 , 10b provided. The floor area 12 of the pre-formed component 10a , 10b Each section is formed flat and thus essentially already exhibits the intended flat geometry of the at least partially finished base area. The additional length provided by the excess material in cross-section for the frame and base areas is shown in the Fig. 2a to Fig. 2c is the same.
[0042] In the following, an exemplary embodiment of a device according to the invention and an exemplary embodiment of a method according to the invention will be presented in connection with Fig. 3 and Fig. 4 will be described. Fig. Figures 3a and b show schematic representations of an exemplary preforming tool. 30 and an exemplary calibration tool 40 according to an embodiment of a device according to the invention, while Fig. Figure 4 shows a schematic representation of the sequence of an embodiment of a method according to the invention.
[0043] The preforming tool 30 is used for pre-shaping a workpiece 20 to a pre-formed component 20' with a floor area 22 and a frame area 24 set up so that the pre-formed component 20' an excess of material for the frame area 24 and / or the floor area 22 features the preforming tool. 30 includes a preform stamp 32 , a preform die 34 and one relative to the preform die 34 movable preform drop base 36 The preforming tool30 It also includes an optional hold-down device. 38 The liftable preform drop base 36 Its form is modified in such a way that a shaping process can be carried out using the preforming tool. Fig. 2b (or alternatively accordingly) Fig. 2c) is achieved.
[0044] Alternatively, and not shown here, the production of the pre-formed component can be carried out in a first step by embossing at least some areas of the base and in a second or further step by raising or bending the frame area.
[0045] The calibration tool 40 It is used to calibrate the pre-formed component. 20' to a component that is at least partially shaped 20'' with a floor area 22 and a frame area 24 The calibration tool 40 includes a calibration stamp 42 , a calibration die 44and one relative to the calibration die 44 movable calibration drop base 46 The calibration die bottom 46 can be distanced from the calibration stamp using suitable means such as external fixed distances. 42 to be driven. The calibration die 44 includes two separate calibration die frames that can be moved relative to each other and adjusted laterally. 44a , 44b During the process, the calibration tool can 40 close, with the calibration stamp 42 the calibration sinker 46 with the pre-formed component in between into the then closed calibration die frames 44a , 44b can displace (see also Fig. 4g), so that the raised floor area 22 of the pre-formed component leveled and the frame area 24 is compressed to the target dimension (see also Fig. 4h).
[0046] In the process sequence, the movable preform sink base is first 36 up to the height of the die bearing surface of the preform die 34 or extended slightly beyond that. The workpiece is then... 20 (circuit board) into the preforming tool 30 inserted ( Fig. 3a, Fig. 4a) and optionally between the fixed distances to the preform die 34 executed hold-down devices 38 , secured against displacement by guide pins and / or holes ( Fig. 4b). For simply designed components (mainly U- or hat-shaped components), the optionally spaced hold-downs can be used. 38 Instead, the so-called embossing with raised embossing is performed. This secures the workpiece until it is positively embossed. 20 between the preform stamp 32 and the preformed die bottom 36 only pins at edges or holes of the workpiece 20 .
[0047] The assembly of preform-punch then lowers. 32 and preformed drop base 36 into the lower end position ( Fig. 4c). This leads to the shaping of the frame areas. 24 of the pre-formed component 20' The pre-formed component can then be 20' the preforming tool 30 can be removed. This is particularly noticeable in the frame area. 24 a recoil ( Fig. 4d, Fig. 4e). The pre-formed component 20' will now be entered into the calibration tool. 40 introduced.
[0048] The calibration sinker 46 was already done before the pre-formed component was inserted 20' defined raised to a height that defines the inserted floor area 22 of the pre-formed component 20' contacted. Then the pre-formed component is loaded. 20' , wherein the pre-formed component 20'At the start of the process, preferably in a stable position between the two calibration die frames 44a , 44b and the calibration sinker 46 should be located ( Fig. 3b, Fig. 4f).
[0049] Then the calibration stamp is applied. 42 and the calibration sinker 46 Closed and spaced apart from each other, with the floor area 22 of the pre-formed component 20' It is secured and essentially not trapped. This allows for a largely unimpeded flow of material in the floor area. 22 without inhibiting the subsequent calibration effect, but essentially prevents the formation of waves in the ground area. 22 due to the pressure generated during calibration. After the calibration stamp 42 the floor area 22 of the pre-formed component 20' between itself and the raised calibration sinker 46Having secured against rough slippage, the two calibration die frames move 44a , 44b as far as the calibration stamp is concerned 42 , until the precisely defined calibration gap between the calibration die frames 44a , 44b and the calibration stamp 42 adjusts and the spring-back frame area 24 of the pre-formed component 20' are geared towards ( Fig. 4g).
[0050] In the next step, the calibration stamp lowers. 42 down to its final position. In doing so, it displaces the raised, but distanced from the calibration stamp. 42 guided calibration die bottom provided with sufficient counterforce (to maintain spacing) 46 also downwards. Only in the last section of this path does the elevation of the ground area occur. 22 of the pre-formed component 20'eliminated by removing the material primarily via the transition area 26 towards the frame area 24 flows ( Fig. 4h). The counterforce of the calibration sinker 46 It should preferably be chosen to be large enough to prevent compression of the pre-formed component. 20' also in the combination of calibration stamps 42 and calibration sinker 46 can have an effect without simultaneously causing the excess material to collapse in waves.
[0051] The flow of the material mainly in the transition area 26 This has several advantages. For one thing, the floor area remains clear. 22 of the pre-formed component 20' Its form is essentially preserved. Furthermore, the material displacement into the frame area can occur. 24 It should be chosen to be large enough that an extension of the frame area may not even be necessary. Ultimately, the material flow in the transition area should be optimized.26 to use the angle of attack of the frame area 24 to the floor area 22 to have a positive influence.
[0052] The component is at bottom dead center. 20'' Finally, at least in some areas, the surface is fully shaped and calibrated. The compression process has thus been carried out in a targeted manner, and the residual waviness in the floor is significantly reduced or even completely eliminated. Fig. 4i, j).
[0053] The exemplary procedure and the exemplary device have been explained in more detail here using a flangeless component as an example. Components with flanges are subject to an analogous procedure.
Claims
[1] Method for manufacturing a component, comprising the method: – Pre-forming of a workpiece ( 20 ) to a pre-formed component ( 10a , 10b 20' ) with a floor area ( 12 , 22 ), a frame area ( 14 , 24 ) and optionally a flange area, so that the preformed component ( 10a , 10b 20' ) a material surplus for the frame area ( 14 ) and / or the floor area ( 12 ) and / or optionally includes the flange area; and – Calibrating the pre-formed component ( 10a , 10b 20' ) to a component that is at least partially finished ( 20'' ) with a floor area ( 22 ), a frame area ( 24 ) and / or optionally a flange area; characterized by – that the floor area ( 12 , 22 ) of the pre-formed component ( 10a ,10b 20' ) essentially the geometry and / or the local cross-sections of the soil area ( 22 ) of the component that is at least partially finished ( 20'' ) exhibits. [2] Method according to claim 1, characterized by that the excess material is due to the shape of the transition area ( 16 , 26 ) between the floor area ( 12 , 22 ) and the frame area ( 14 , 24 ) of the pre-formed component ( 10a , 10b 20' ) and / or is provided by the shape of the transition area between the flange area and the frame area of the preformed component. [3] Method according to claim 1 or 2, characterized by that the shape of the transition zone ( 16 , 26 ) between the floor area ( 12 , 22 ) and the frame area ( 14 , 24 ) of the pre-formed component ( 10a , 10b 20') to a raised or lowered floor area ( 12 ) of the pre-formed component ( 10a , 10b 20' ) leads. [4] Method according to claims 1 to 3, characterized by that the excess material is essentially due to the transition area ( 16 , 26 ) between the floor area ( 12 , 22 ) and the frame area ( 14 , 24 ) of the pre-formed component ( 10a , 10b 20' ) is provided. [5] Method according to any one of claims 1 to 4, characterized by that the shape of the transition zone ( 16 , 26 ) between the floor area ( 12 , 22 ) and the frame area ( 14 , 24 ) of the pre-formed component ( 10a , 10b 20' ) in cross-section an additional length for the bottom area ( 12 , 22 ) and / or the frame area ( 14 , 24) of the pre-formed component ( 10a , 10b 20' ) provides. [6] Method according to any one of claims 1 to 5, characterized by that preforming by a deep-drawing operation with or without a blank holder ( 38 ) is carried out. [7] Method according to any one of claims 1 to 5, characterized by that the pre-forming is carried out as a combination of at least partial embossing of the base area and raising of the frame area. [8] Method according to any one of claims 1 to 7, characterized by that the floor area ( 12 , 22 ) of the pre-formed component ( 10a , 10b 20' ) during calibration, a force is applied which causes compression of the bottom area ( 12 , 22 ) of the pre-formed component ( 10a , 10b 20' ) enables and prevents the excess material from collapsing. [9] Method according to any one of claims 1 to 8, characterized by that the preforming in a preforming tool ( 30 ) comprising a preform die ( 32 ), a preform die ( 36 ) and one relative to the preform die ( 34 ) movable preform die bottom ( 36 ) is carried out, whereby the workpiece ( 20 ) between the preform die ( 32 ) and the preform die bottom ( 36 ) is arranged and wherein a relative movement between the workpiece ( 20 ) with the preform stamp ( 32 ) and the preform die bottom ( 36 ) on the one hand and the preform die ( 34 ) on the other hand the workpiece ( 20 ) is pre-formed. [10] Method according to any one of claims 1 to 9, characterized by that calibration by a calibration tool ( 40 ) including a calibration stamp ( 42 ), a calibration die ( 44) and one relative to the calibration die ( 44 ) movable calibration sinker ( 46 ) is carried out, whereby the pre-formed component ( 10a , 10b 20' ) between the calibration stamp ( 42 ) and the calibration die bottom ( 46 ) is arranged, and wherein a relative movement between the preformed component ( 10a , 10b 20' ) with the calibration stamp ( 42 ) and the calibration die bottom ( 46 ) on the one hand and the calibration die ( 44 ) on the other hand, the pre-formed component ( 10a , 10b 20' ) is calibrated. [11] Method according to claim 10, characterized by that for calibrating the pre-formed component ( 10a , 10b , 20' ) the frame area ( 24 ) of the component that is at least partially finished ( 20'' ) defining calibration die frames ( 44a , 44b) of the calibration tool ( 40 ) are driven towards each other. [12] Method according to one of claims 11, characterized by that the calibrating of the pre-formed component ( 10a , 10b , 20' ) used calibration die frames ( 44a , 44b ) of the calibration tool ( 40 ) are designed in such a way that the calibration die frames can preferably be moved in the optional flange area of the preformed component. [13] Device for manufacturing a component, in particular for carrying out a method according to any one of claims 1 to 12, – with a preforming tool ( 30 ) for pre-forming a workpiece ( 20 ) to a pre-formed component ( 10a , 10b 20' ) with a floor area ( 12 , 22 ), a frame area ( 14 , 24 ) and optionally a flange area, so that the preformed component ( 10a, 10b 20' ) a material surplus for the frame area ( 14 , 24 ) and / or the floor area ( 12 , 22 ) and / or optionally includes the flange area; and – with a calibration tool ( 40 ) for calibrating the pre-formed component ( 10a , 10b 20' ) to a component that is at least partially finished ( 20'' ) with a floor area ( 22 ), a frame area ( 24 ) and optionally a flange area; characterized by that the preforming tool ( 30 ) such as for pre-forming the workpiece ( 20 ) is formed such that the excess material is essentially determined by the shape of the transition zone ( 16 , 26 ) between the floor area ( 12 , 22 ) and the frame area ( 14 , 24) and optionally essentially by the shape of the transition area between the flange area and the frame area ( 14 , 24 ) of the pre-formed component ( 10a , 10b 20' ) is provided. [14] Device according to claim 13, characterized by that the preforming tool ( 30 ) a preform stamp ( 32 ), a preform die ( 34 ) and one relative to the preform die ( 34 ) movable preform die bottom ( 36 ) includes. [15] Device according to claim 13 or 14, characterized by that the calibration tool ( 40 ) a calibration stamp ( 42 ), a calibration die ( 44 ) and one relative to the calibration die ( 44 ) movable calibration sinker ( 46 ) includes. [16] Device according to claim 15, characterized by that the calibration die ( 44) at least two separate, mutually movable calibration die frames ( 44a , 44b ) includes.