Method and Device for Manufacturing an Extruded Product

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This patent describes a method and device for producing extruded products made from two different materials (or the same material, if desired), using a special extrusion device with two separate loading bores and independently driven extrusion dies. The process allows the two materials to be pressed and merged together in a single forming step inside a mold, creating a strong and integrated bond between them. The flow rates and pressing conditions for each material can be individually controlled, enabling precise adjustment of the properties and design of the final hybrid extruded profile.

Use CasesContent extracted from patent full text and abstract with AI.

• Manufacture of hybrid metal profiles for the automotive and aerospace industries, combining materials for optimal strength-to-weight ratio.
• Production of tailored extrusions for construction elements, window frames, or tubes with localized properties (e.g., increased thickness where higher loads occur).
• Creation of multi-material parts in energy systems, medical devices, or electronics, where different sections need distinct mechanical or physical properties.
• Fabrication of components for public transport or rail industry, combining lightweight and durable metals.
• Customized extruded products in consumer appliances requiring integrated function and structural zones.

BenefitsContent extracted from patent full text and abstract with AI.

• Allows efficient single-step bonding and forming of two different or similar materials, reducing the need for secondary joining processes.
• Enables precise control of material flow and distribution, allowing customized cross-sectional designs tailored to performance requirements.
• Improves material compatibility and structural integrity at the interface, producing strong and durable hybrid components.
• Reduces production time, energy consumption, and processing complexity compared to traditional multi-step joining techniques.
• Offers flexibility in product design by varying the type, position, and proportion of each material throughout the extruded profile.
• Permits optimization of mechanical, thermal, and chemical properties across different zones in the same product.

Technical Classifications (CPCs)

Inventors & Applicants

Patent Abstract

The invention relates to a method and a device for producing an extruded product. In the method, an extrusion device is provided, comprising: a receiver (7); a first receiver bore (5) which is formed in the receiver (7) and in which a first extrusion die (10) is arranged; a second receiver bore (6) which is formed in the receiver (7) separately from the first receiver bore (5) and in which a second extrusion die (11) is arranged; and a mould (15) with a mould cavity (14) which is connected to the first and the second receiver bore (5, 6). Furthermore, the method comprises the following: arranging of a first material blank (8) consisting of a first material (2) in the first received bore (5); arranging of a second material blank (9) consisting of a second material (3) which is different from the first material (2), in the second receiver bore (6); and extruding of an extruded product (1), in the case of which the first and second material (2, 3) are connected in a positively locking and integrally joined manner, comprising the following: advancing of the first extrusion die (10) in the first receiver bore (5) in such a way that, as a result, the first material (2) is pressed into the mould cavity (14) of the mould (15) and is reshaped in the process; advancing of the second extrusion die (11) in the second receiver bore (6) in such a way that, as a result, the second material (3) is pressed into the mould cavity (14) of the mould (15) and is reshaped in the process; and connecting of the first and the second material (2, 3) in an integrally joined and positively locking manner to form an extruded product (1) in the mould (15). A first advance during the advancing of the first extrusion die (10) in the first receiver bore (5) and a second advance during the advancing of the second extrusion die (11) in the second receiver bore (6) are regulated independently of one another.