Abrégé

The invention relates to a method and to an arrangement for producing open or closed annular structural components made of light metal and alloys thereof, preferably of magnesium or magnesium alloys, having a two- or three-dimensional structure by means of extrusion. The extruded profile emerging from the matrix of the extruder (3) is formed into a helix shape (9) by means of one or more guide tools (5) such that in the area of overlap, the ends of the helical shape (9) are separated from the extruder, and in a calibrating device (7), said helical shape is formed into a two- or three-dimensional structural component (10).

Classes IPC  ?

• B21C 23/12 - Extrusion de tubes ou de barres cintrés
• B21D 11/06 - Cintrage en hélice, ou en spiraleFaçonnage en une succession de coudes, p. ex. en forme de serpentins

Abrégé

The invention for processing extruded profile segments with regard to the outer contour thereof by hot sizing and/or hot stamping and/or cutting operations and/or piercing operations comprises the following steps: inserting the profile segments (1) heated to a temperature in the range of 250 to 450°C into a two-part sizing tool (2) pre-heated to a temperature of 300 to 600°C, and applying pressure to the sizing tool (2) by means of one or more pressing cylinders (3) of a press (4). The device for performing the method comprises a press (4) and a sizing tool, wherein the sizing tool (2) is formed by two tool halves (I, II), which can be moved toward each each other and between which the profile segment (1) is inserted.

Classes IPC  ?

• B21J 1/06 - Méthodes ou dispositifs de chauffage ou de refroidissement spécialement adaptés aux opérations de forgeage ou de pressage
• B21J 5/02 - MatriçageÉbarbage par utilisation de matrices particulières
• B21J 15/00 - Rivetage
• B21C 35/02 - Enlèvement ou éjection des produits
• C22C 23/00 - Alliages à base de magnésium
• C22F 1/06 - Modification de la structure physique des métaux ou alliages non ferreux par traitement thermique ou par travail à chaud ou à froid du magnésium ou de ses alliages

Abrégé

The invention relates to a method and a plant for producing extrusion billets from scrap obtained from stamping, cutting and/or machining processes, in particular scrap made of magnesium or magnesium alloys, without subjecting the scrap to a melting process. The plant for carrying out said method essentially consists of a storage unit (1) for the scrap, a device (2) for comminuting the scrap, a press (3) for producing a round bar (7), and an extruder (5) for shaping the round bar (7) into an extrusion billet (6).

Classes IPC  ?

• B21C 33/00 - Alimentation des presses d'extrusion en métal à extruder
• B30B 9/32 - Presses spécialement adaptées à des fins particulières pour rendre compacts des résidus métalliques ou pour comprimer des véhicules devenus inutilisables

Abrégé

The invention relates to a method for separating hollow sections after the extrusion process, the hollow sections being separated to create a component with a predefined geometrical form by means of a punching operation.

Classes IPC  ?

• B21D 28/28 - Perforation, c.-à-d. découpage de trous dans des tubes ou autres corps creux
• B21C 35/02 - Enlèvement ou éjection des produits

Abrégé

Metal sheets (13) are produced from thin-gauge billet-type sections (8) consisting of magnesium or magnesium alloys, by means of an extrusion facility (1). The open or closed extrusion section (8) exiting the extrusion die (6-7) of an extruder (1) is formed into a uniform sheet (13) and subsequently subjected to a defined forming process by drawing. The facility for carrying out the method consists substantially of an extruder (1) with a die that produces the extruded section and of a forming unit (5) adjoining the die. The forming unit (5) is composed of a separation unit (2), a bending unit (3) and an unfurling unit (4).

Classes IPC  ?

• B21C 37/02 - Fabrication de tôles, barres, fils, tubes ou profilés métalliques ou de produits semi-finis similaires, non prévue ailleursFabrication de tubes de forme particulière des tôles
• B21D 1/00 - Redressage, remise en forme ou élimination des distorsions locales des tôles ou d'objets déterminés faits à partir de tôlesÉtirage des feuilles métalliques combiné avec le laminage
• B21C 23/06 - Fabrication de tôles
• C22C 23/00 - Alliages à base de magnésium

Abrégé

The invention relates to a method and to a system for producing extrusion
billets from
scraps obtained from stamping, cutting and/or machining operations, in
particular scraps made
of magnesium or magnesium alloys, without subjecting these to a melting
process. The system
for carrying out the method is essentially composed of a storage unit (1) for
the scraps, a device
(2) for comminuting the scraps, a press (3) for producing a round briquette
(7), and an extruder
(5) for shaping the round briquette (7) into a extrusion billet (6).

Classes IPC  ?

• B21C 33/00 - Alimentation des presses d'extrusion en métal à extruder
• B30B 9/32 - Presses spécialement adaptées à des fins particulières pour rendre compacts des résidus métalliques ou pour comprimer des véhicules devenus inutilisables

Abrégé

The invention for working extruded profile sections with respect to the outer
contours thereof by
way of hot shaping and/or hot stamping and/or cutting operations and/or
punching operations
comprises the following method steps: - inserting the profile sections (1)
heated to a
temperature in the range of 250 to 450.degree.C into a two-part shaping tool
(2) preheated to a
temperature of 300 to 600.degree.C; and - applying pressure to the shaping
tool (2) by way of one or
more pressing cylinders (3) of a press (4). The device for carrying out the
method comprises a
press (4) and a shaping tool, wherein the shaping tool (2) is formed of two
tool halves I, II, which
are displaceable with respect to each other, and between which the profile
section (1) is
inserted.

Classes IPC  ?

• B21C 35/02 - Enlèvement ou éjection des produits
• B21J 1/06 - Méthodes ou dispositifs de chauffage ou de refroidissement spécialement adaptés aux opérations de forgeage ou de pressage
• B21J 5/02 - MatriçageÉbarbage par utilisation de matrices particulières
• B21J 15/00 - Rivetage
• C22C 23/00 - Alliages à base de magnésium
• C22F 1/06 - Modification de la structure physique des métaux ou alliages non ferreux par traitement thermique ou par travail à chaud ou à froid du magnésium ou de ses alliages

Abrégé

A method and a system for producing open or closed annular structural
components made of light
metal and alloys thereof, preferably of magnesium or magnesium alloys, having
a two-dimensional
or three-dimensional structure by means of extrusion, wherein the extruded
profile
exiting the die of the extrusion press is formed into a helical shape by way
of one or more guide
tools, and more particularly such that the ends of the helical shape are
separated from the
extruded strand in the region of the overlap and formed into a two-dimensional
or three-dimensional
structural component in a shaping device.

Classes IPC  ?

• B21C 23/12 - Extrusion de tubes ou de barres cintrés
• B21D 11/06 - Cintrage en hélice, ou en spiraleFaçonnage en une succession de coudes, p. ex. en forme de serpentins