摘要:
A method and a device for inductive radiofrequency welding of metal products, include heating by inducing radiofrequency currents with use of at least one induction conductor. The metal products and a welding zone are moved relative to one another, so that edge regions of the metal products to be welded are brought in contact in the welding zone and are welded together to form a weld seam. Metal products with different material thicknesses and/or material properties can be welded together because an induction conductor which heats the edge regions of the metal products is used which includes at least two mutually separable induction conductor components that are assigned to the respective metal product and are adapted thereto, and the edge regions to be welded are heated in a manner that is adjusted separately for the respective metal product.
摘要:
A method and a device for inductive radiofrequency welding of metal products, include heating by inducing radiofrequency currents with use of at least one induction conductor. The metal products and a welding zone are moved relative to one another, so that edge regions of the metal products to be welded are brought in contact in the welding zone and are welded together to form a weld seam. Metal products with different material thicknesses and/or material properties can be welded together because an induction conductor which heats the edge regions of the metal products is used which includes at least two mutually separable induction conductor components that are assigned to the respective metal product and are adapted thereto, and the edge regions to be welded are heated in a manner that is adjusted separately for the respective metal product.
摘要:
A laser beam welding head for the welding of metal parts and method of use include at least one beam path for a welding beam and means for the optical acquisition of the position of the welding seam at a first measuring position, wherein the means for the optical acquisition of the position of the welding seam allow arrangement of the first measuring position in the welding direction running ahead of the welding position of the welding beam, and, at least as a function of a lateral deviation of the welding seam from a reference position, generate a correction signal for the correction of the welding position of the welding beam, as well as a corresponding use of the laser beam welding head.
摘要:
A laser beam welding head for the welding of metal parts and method of use include at least one beam path for a welding beam and means for the optical acquisition of the position of the welding seam at a first measuring position, wherein the means for the optical acquisition of the position of the welding seam allow arrangement of the first measuring position in the welding direction running ahead of the welding position of the welding beam, and, at least as a function of a lateral deviation of the welding seam from a reference position, generate a correction signal for the correction of the welding position of the welding beam, as well as a corresponding use of the laser beam welding head.
摘要:
The invention relates to a method and a device for guiding bands to be joined to one another along their longitudinal edges, comprising guide elements which form tracks for guiding the bands that are configured such that the bands approach one another in the transport direction and the longitudinal edges thereof rest on one another at a non-overlapping contact point. At least one of the tracks may be configured to undulate with a wavelength of ¼≦λ≦2, such that transverse displacement of the band guided thereon occurs. The axes of rotation and/or longitudinal central axes of the guide elements may also be inclined towards one another at different angles of inclination in relation to a horizontal plane of reference, such that the band guided on said track is rotated about its longitudinal axis in the transport direction.
摘要:
A device and a method for guiding bands to be joined to one another along their longitudinal edges, in which bands are guided via deflection rollers to a joining position. The device according to the invention provides that the deflection roller located closer to the joining position is configured as a conical roller, the deflection roller arranged upstream of this conical roller in the running direction of the band being also configured as a conical roller or as a deflection roller having a cylindrical lateral surface, and the conical roller last mentioned tapering in the direction of the other longitudinal edge of the band, or the rotational axis of the deflection roller having a cylindrical lateral surface spatially approaching the rotational axis of the conical roller arranged downstream in the running direction of the band on the edge side of the band opposing the longitudinal edge to be joined.
摘要:
The invention relates to a method and a device for guiding bands to be joined to one another along their longitudinal edges, comprising guide elements which form tracks for guiding the bands that are configured such that the bands approach one another in the transport direction and the longitudinal edges thereof rest on one another at a non-overlapping contact point. At least one of the tracks may be configured to undulate with a wavelength of ¼≦λ≦2, such that transverse displacement of the band guided thereon occurs. The axes of rotation and/or longitudinal central axes of the guide elements may also be inclined towards one another at different angles of inclination in relation to a horizontal plane of reference, such that the band guided on said track is rotated about its longitudinal axis in the transport direction.
摘要翻译:本发明涉及一种用于沿着其纵向边缘引导彼此连接的带的方法和装置,包括形成轨道的引导元件,引导元件被构造成使得带在输送方向上彼此接近并且纵向 其边缘在不重叠的接触点处彼此搁置。 轨道中的至少一个可以被配置成波长为1/4和n L E;λ&nl E; 2的波形,使得在其上引导的带的横向位移发生。 引导元件的旋转轴和/或纵向中心轴线也可以相对于水平参考平面以不同的倾斜角度彼此倾斜,使得在所述轨道上引导的带围绕其纵向轴线旋转 运输方向。
摘要:
The invention relates to a method for machining a workpiece by means of a laser beam, in particular a part of a motor vehicle, wherein a laser beam is applied to the workpiece by means of a scanner, material of the workpiece is ablated, the radiation produced by the plasma during the process in the work area and/or reflected laser radiation is detected, and a signal is generated depending on the detected plasma and/or laser radiation. In addition the invention also relates to an apparatus for the laser beam machining of a workpiece, in particular for carrying out a method according to the invention. A greater process reliability can be ensured in laser beam machining in that the position of the laser beam in relation to the workpiece and/or the ablation depth is regulated and/or controlled depending on the signal.
摘要:
The invention relates to a method for machining a workpiece by means of a laser beam, in particular a part of a motor vehicle, wherein a laser beam is applied to the workpiece by means of a scanner, material of the workpiece is ablated, the radiation produced by the plasma during the process in the work area and/or reflected laser radiation is detected, and a signal is generated depending on the detected plasma and/or laser radiation. In addition the invention also relates to an apparatus for the laser beam machining of a workpiece, in particular for carrying out a method according to the invention. A greater process reliability can be ensured in laser beam machining in that the position of the laser beam in relation to the workpiece and/or the ablation depth is regulated and/or controlled depending on the signal.
摘要:
A bipolar plate which can be produced particularly economically for a fuel cell, with which a high degree of efficiency is guaranteed over a long service life. The bipolar plate has a core layer consisting of a steel material, the surfaces of said core layer, which are associated with the respective electrolyte carriers of the fuel cell, having a corrosion protection layer, protecting the core layer against corrosion. The corrosion protection layers consist of a metal material and extend on both sides over the whole surface of the core layer. At the same time the corrosion protection layers are in turn coated over the whole surface with an electrically conductive functional coating, which is essentially entirely impermeable for the metal ions emerging from the core layer and/or the corrosion protection layers. The invention likewise relates to at least one fuel cell comprising a bipolar plate according to the invention.