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Method for moulding sheet into component of complex shape having areas with different mechanical properties

A technology of complex shapes and sheets, which is applied in the field of molding sheets into complex shapes of parts with different properties and regions, can solve problems such as ineffectiveness and heavy furnace lines, and achieve light weight and economical production of finished parts. light effect

Active Publication Date: 2021-08-24
CENT RICERCHE FIAT SCPA
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Problems solved by technology

[0006] One of the technical problems encountered in processes of the type indicated above lies in the fact that the kiln lines provided for carrying out the heating step of the sheet before forming the part of complex shape are rather cumbersome and not very efficient, This is true both from the point of view of the energy consumption required to operate these lines and from the point of view of construction time, at the expense of manufacturing economy

Method used

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  • Method for moulding sheet into component of complex shape having areas with different mechanical properties
  • Method for moulding sheet into component of complex shape having areas with different mechanical properties
  • Method for moulding sheet into component of complex shape having areas with different mechanical properties

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Embodiment Construction

[0031] In the following description, various specific details are illustrated in order to provide a thorough understanding of examples of one or more embodiments. Embodiments can be practiced without one or more of the specific details, or with other methods, components, materials, etc. In other instances, known structures, materials, or operations are not shown or described in detail to avoid obscuring aspects of the embodiments. In the context of the present description, reference to "an embodiment" indicates that a particular configuration, structure, or characteristic described with respect to the embodiment is included in at least one embodiment. Thus, phrases such as "in an embodiment," which may appear in different places in this description, are not necessarily referring to the same embodiment. Furthermore, particular configurations, structures, or characteristics may be combined in suitable manners in one or more embodiments and / or may be associated with the embodime...

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Abstract

A method for moulding a sheet into a component of complex shape having areas with different mechanical properties, particularly a motor-vehicle component. The method involves a first heating step of the sheet carried out by means of a kiln, prior to forming the component. The kiln comprises a main body with a roller shape, having a plurality of sectors extending along a radial direction with respect to a longitudinal axis of the roller body. The sectors are configured to each receive a sheet, so that the main body with a roller shape is arranged to simultaneously carry a plurality of sheets. The kiln further comprises a plurality of heating elements incorporated in said roller-shaped main body, so as to heat the sheets in contact with the roller body. The kiln further comprises at least one electronically-controlled drive motor, arranged to rotate the roller-shaped main body around the longitudinal axis of the kiln, so as to vary the position of the sectors with respect to the inlet and outlet ports. The method also includes an additional heating step following extraction of the sheets from the kiln, wherein the sheets are locally heated only at one area, so as to obtain sheets with areas heated to different temperatures.

Description

technical field [0001] The invention relates to a method for molding sheet material into complex-shaped parts with regions of different mechanical properties, in particular motor vehicle parts such as, for example, the central pillar of a motor vehicle body (“Pillar B” ). [0002] In particular, the invention relates to a method of the type in which a heating step of the above-mentioned sheet is provided prior to the forming step to manufacture the final part. Background technique [0003] In order to obtain components of complex shape, made of metallic material, characterized by local variations of their mechanical properties, the state of the art is the preparation of semi-finished metal sheet products manufactured according to the "tailored blank" technique. [0004] In order to manufacture components of the type indicated above, other known techniques envisage subjecting the components to localized heat treatments. In the context of the present application, a previousl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21D37/16
CPCB21D37/16C21D9/0031C21D1/34C21D1/673C21D9/46C21D2221/00F27B9/36F27B9/16F27B9/39B21D53/88F27B9/2407C21D8/0205
Inventor D·巴桑M·科罗西奥
Owner CENT RICERCHE FIAT SCPA
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