摘要:
Die Erfindung betrifft eine Vorrichtung (17) und ein Verfahren zum Biegen von Profilen oder Stabmaterial (1), insbesondere unsymmetrischer und offener Profile oder Stabmaterial (1), aufweisend zueinander verschwenkbare Biegeglieder (2), die das Profil oder Stabmaterial (1) aufnehmen und punktuell halten und mittels Biegemomenteneinleitung lokal in eine gebogene Konfiguration überführen. Hierbei sind mindestens zwei entlang der Biegelinie (13) des Profils oder Stabmaterials (1) zueinander beabstandete Biegeglieder (2) derart aneinander festgelegt und relativ zueinander verschwenkbar ausgebildet, dass eine relative Verschwenkung (11) der Biegeglieder (2) zueinander das Profil oder Stabmaterial (1) lokal biegend verformt, wobei entlang der Biegelinie (13) des Profils oder Stabmaterials (1) zumindest abschnittsweise zwischen den Biegegliedern (2) elastisch verformbare Stützelemente (3, 5, 6) an den Außenseiten des Profils oder Stabmaterials (1) anliegend angeordnet sind und die relative Verschwenkung (11) der Biegeglieder (2) zueinander die Stützelemente (3, 5, 6) ebenfalls biegt, wobei die Stützelemente (3, 5, 6) das sich biegende Profil oder Stabmaterial (1) abstützen.
摘要:
A tip-bend forming method for machining pockets while a curved, plate-shaped workpiece is in a flattened state, without depending on novel machining equipment, wherein the curve radius of the plate-shaped workpiece after the pockets have been machined is prevented from becoming smaller than a completed curve radius due to spring-in. A plate-shaped workpiece (2) forming method for post-machining pockets (3) into the curved inner surface of the workpiece (2) while the plate-shaped workpiece (2), which has been curved by a curve-forming machine (10), is in a flattened state, the forming method having: a curve-forming step (A) for estimating in advance the amount that spring-in will cause the curve radius of the plate-shaped workpiece (2) to shrink after machining of the pockets (3) compared to before the machining thereof, setting a net curve radius (Ro) obtained by adding a curve-radius shrinkage amount (R 1 ) caused by spring-in to the completed curve radius (R) of the plate-shaped workpiece (2), and forming the curve in the plate-shaped workpiece (2) so as to achieve the net curve radius (R 0 ); and a pocket-machining step for flattening the curved, plate-shaped workpiece (2), and post-machining pockets (3) therein.
摘要:
Method for heating a continuous elongated metal product (110; 7) such as strip or rod, alternatively a discreet sheet, which is transported on a conveyor path (101;14), where the heating takes place at a first heating location (103) using at least one DFI (Direct Flame Impingement) burner ( 102; 12; 22; 22a, 22b; 32a, 32b), past which the metal product is transported and the flame of which during passage is impinged directly upon a first surface of the metal product. The invention is characterized in that the combustion prod¬ ucts from the DFI burner are conveyed through at least one channel (104), which is caused to run, isolated from the metal product, from the location at which the flame of the DFI burner is arranged to impinge upon the first surface and on to at least a second heating location (106), which is caused to be arranged along the conveyor path, so that the combustion products from the DFI burner are caused to impinge upon a second, opposite surface of the metal product when the metal product passes the second heating location (106). The invention also relates to a device.
摘要:
A sheet of material, suitable for bending along a bend line to a predetermined angle, includes one planar segment on one side of the bend line, another planar segment on another side of the bend line, one displacement extending in the thickness direction of the sheet of material from the one planar segment, and another displacement extending in the thickness direction of the sheet of material from the another planar segment. The displacements are dimensioned and configured such that they engage one another during bending and limit the angular displacement of the one side relative to the another side. As such, the displacements self-key the resulting corner at the predetermined angle and provide structural integrity to the corner.; The sheet of material, having a plane-to-plane joint, includes a tongue formed in one planar segment, a receiver formed in another planar segment for longitudinally receiving the tongue, a latch protrusion formed in the one planar segment, and a latch recess formed in the another planar segment. The receiver holds a lower surface of the one planar segment in close proximity with an upper surface of the another planar segment and transversely limits the planar segments. The latch protrusion and latch recess are self-latching upon insertion of the tongue into the receiver. Methods of preparing and bending such sheet materials are also disclosed.
摘要:
The invention provides a method of bending sheet material (10), including the steps of attaching two or more attachment devices (30) to a surface of a shee (10) to be bent and moving each of the attached attachment devices (30) along a predetermined trajectory (40) in order to bend the sheet.
摘要:
A flexible forming device for forming three-dimensional shaped workpieces, comprising a frame, at least two working rollers, one or more working roller driving mechanisms and one or more adjusting mechanisms, wherein the working rollers, the one or more working roller driving mechanisms and the one or more adjusting mechanisms are installed on the frame respectively. At least one of the working rollers is a flexible working roller, which is bendable and adjustable. The forming device need not use mold and can realize the continuous formation of a three-dimensional curved surface of a plate-shaped workpiece, and the gradual formation of a tube-shaped or bar-shaped three-dimensional shaped workpiece. The forming device can save manpower, material and time.
摘要:
A method of preparing a sheet of material (421) for bending along a bend line includes the step of forming at least one displacement in the thickness direction of the sheet of material, the displacement including a flat zone (428) substantially parallel to the sheet of material with a portion of the periphery of the flat zone extending along and adjacent to the bend line, and including an angled transition zone (432) interconnecting the flat zone with a remainder of the sheet of material. The forming step is preferably accomplished using one of a stamping process, a punching process (443), a roll forming process and an embossing process. A sheet of material suitable for bending using the process also is disclosed, as are the use of coatings, shin guards and displacing the area of the sheet between bending inducing slits.