摘要:
The invention relates to a method for producing a contour cut in a sheet metal web (BB) transported in a direction of transport (T) by means of a conveying apparatus (3). To accelerate the production of the contour cut, it is proposed in accordance with the invention to divide the sheet metal web (BB) into a plurality of overlapping processing strips and to assign successively two laser cutting units (10, 11) to at least two processing strips in the direction of transport (T).
摘要:
A method and a device for engraving a flexible strip, the device including a drive device for moving a flexible strip in a longitudinal direction of the flexible strip; a support device for supporting the strip in a circumferential direction of a cylinder on a surface segment of the cylinder acting as a support surface; a processing head oriented towards the support surface for engraving the strip with at least one tool oriented towards the support surface; and a drive device for moving the processing head, wherein the processing head is pivotable through the drive device about a longitudinal axis of the cylinder. In order to engrave a closed loop with a single processing head it is proposed that the processing head is pivotable through a drive device about a longitudinal axis of the cylinder.
摘要:
An apparatus and a method are provided for cutting, cutting-out and perforating web or sheet substrates. The apparatus has a laser cutting device disposed above or below a transport plane for processing a substrate. The laser cutting device includes at least one laser array extending over the width of the substrate and having individually drivable lasers. The laser array is composed, in particular, of a plurality of individual arrays. The lasers are, in particular, constructed as vertical-cavity surface-emitting lasers. In this way, processing of the substrate at high transport speeds is made possible.
摘要:
In a process of transporting a strip-shaped optical film F, the optical film F is cut to a predetermined length. Thereafter, the sheet-like optical films F divided by the cutting are intermittently transported while the strip-shaped optical film F is fed by the predetermined length such that a portion to be cut next reaches a cutting action position. Further, a leading one of the sheet-like optical films F in the intermittent transport process is transported to a continuous transport process such that a rear end thereof passes the intermittent transport process in a subsequent intermittent transport operation. Herein, the sheet-like optical film F is transported to the downstream-side continuous transport process following the intermittent transport process to continuously transport the optical film F.
摘要:
A process and system for making a plurality of metal parts is included. The process comprises providing metal from which the metal parts are to be made and providing a press. The press includes a forming die positioned within the press as well as a first cutting laser positioned within the press. The process includes traversing the metal through the press and forming the plurality of metal parts in the metal within the press by concurrently cutting at least a portion of one of the plurality of metal parts with a first cutting laser and forming at least a portion of one of the plurality of metal parts with a forming die.
摘要:
Cable foil tape having random or pseudo-random patterns or long pattern lengths of discontinuous metallic shapes and a method for manufacturing such patterned foil tape are provided. In some embodiments, a laser ablation system is used to selectively remove regions or paths in a metallic layer of a foil tape to produce random distributions of randomized shapes, or pseudo-random patterns or long pattern lengths of discontinuous shapes in the metal layer. In some embodiments, the foil tape is double-sided, having a metallic layer on each side of the foil tape, and the laser ablation system is capable of ablating nonconductive pathways into the metallic layer on both sides of the foil tape.
摘要:
What is proposed is a contact element for connection between electrically conducting, preferably plate-shaped, components, in particular diverters of electrochemical cells, consisting of different materials, wherein the contact element is produced from at least two elements (32, 34), wherein at least two elements are joined by means of laser induction rollers, wherein a first element is adapted for connection to a first of the electrically conducting components, wherein a second element is adapted for connection to a second of the electrically conducting components, and wherein the first and the second element have an electrically conducting connection to one another. Therefore, a connection with high process reliability can be provided between diverters of electrochemical cells.
摘要:
An apparatus forms a sheet into a beam having four exterior walls and a common center leg extending between an opposing two of the walls. The apparatus includes a roll former forming the sheet into the beam cross section, a welding station with top and bottom laser welders, and a weld box fixture having inwardly-biased external mandrels (biased by actuators) and outwardly-biased internal split mandrels (biased by springs) that interact to hold a desired shape of the beam in the weld fixture, and also includes a sweeping unit and cutoff device. By this arrangement, the internal and external mandrels, in combination with a bias of the actuators and springs, control a shape of the beam by flexure and movement of material of the sheet when in the weld box fixture during a welding process of the welder.
摘要:
A system for making a dental restoration, comprising a 3D digitizer for producing a 3D model digital representation of a dental restoration model, a computer in communication with the 3D digitizer and capable of creating a dental restoration milling trajectory for a selected block of given dimension and given dental restoration material, based on the 3D model, and a laser milling apparatus in communication with the computer and capable of laser milling the dental restoration from the selected block positioned therein using the milling trajectory created by the computer. The laser milling apparatus includes one or more sensor for continuously monitoring the laser milling of the selected block and to provide feedback to the computer such that the milling trajectory is continuously adjusted by the computer using the feedback from the one or more sensor.
摘要:
A microchannel heat exchanger (800) is manufactured by bonding a first sheet (802a) of material and a second sheet (802b) of material in a first connection pattern for integral formation of a core portion (801) and a manifold portion (808) for the first and second sheets (802a, 802b) of material. A third sheet (802c) of material is then superposed on to the second sheet (802b) of material and bonded in a second connection pattern to the second sheet of material for integral formation of the core portion (801) and the manifold portion (808) for the second and third sheets (802b, 802c) of material. The second and third sheets (802b, 802c) of material are bonded without bonding the second sheet (802b) of the material to the first sheet (802a) of material. The core portion (801) and the manifold portion (808) of the heat exchanger (800) are thus integrally created. The interstices between the first, second, and third sheets (802a, 802b, 802c) of material are then expanded to create fluid flow channels (806). This method can also be used to create a heat sink. The bonding method may be a form of laser welding where an opaque sheet absorbs the laser energy and the heat conducts through the top sheet to the sheet immediately below, but does not cause bonding with subsequent sheets below.