Desktop Metal has patented a method for layer-by-layer assembly of composite structures using continuous reinforcing fibers. The process involves printing a support structure, depositing heated thermoplastic tape, and compacting the layers to form a high-quality, fiber-reinforced part. The innovative system includes printer heads for manufacturing structural parts efficiently. GlobalData’s report on Desktop Metal gives a 360-degree view of the company including its patenting strategy. Buy the report here.
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According to GlobalData’s company profile on Desktop Metal, Additive manufacturing monitoring sensors was a key innovation area identified from patents. Desktop Metal's grant share as of January 2024 was 39%. Grant share is based on the ratio of number of grants to total number of patents.
Layer-by-layer assembly of composite structures using continuous fibers
A recently granted patent (Publication Number: US11883987B2) discloses a method for manufacturing a part using a fused filament fabrication-based print head. The process involves printing a three-dimensional support with layers of fused polymer filament, heating and depositing segments of prepreg thermoplastic tape onto the support, compacting the segments to conform to the support, and repeating the deposition and compacting steps in various directions to form a fiber-reinforced multi-layer part with defined surfaces. The support can also act as a mold for shaping regions or volumes, and additional features like non-stick material deposition and splice detection and removal are included in the method.
Furthermore, the method includes steps such as cooling the compaction roller, covering the support with tape segments, detecting and removing splices in the tape, and utilizing lattice or honeycomb cores as supports. The support can either be removed or remain integral with the final part, providing flexibility in the manufacturing process. All these steps are carried out within the working region of a printing system, ensuring efficient production within the system's housing. This innovative method offers a comprehensive approach to manufacturing parts with fiber-reinforced layers, showcasing advancements in additive manufacturing techniques for creating complex and durable components.
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GlobalData Patent Analytics tracks bibliographic data, legal events data, point in time patent ownerships, and backward and forward citations from global patenting offices. Textual analysis and official patent classifications are used to group patents into key thematic areas and link them to specific companies across the world’s largest industries.
