Markforged Inc has been granted a patent for a furnace designed for debinding and sintering additively manufactured parts. The furnace includes a tubular retort, a heater, an end cap, a forming gas line, and a heat exchanger to efficiently heat the forming gas before it enters the sintering volume. GlobalData’s report on Markforged 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 Markforged, was a key innovation area identified from patents. Markforged's grant share as of February 2024 was 45%. Grant share is based on the ratio of number of grants to total number of patents.
Furnace for debinding and sintering additively manufactured parts
A recently granted patent (Publication Number: US11913724B2) discloses a furnace designed for debinding and sintering additively manufactured parts. The furnace includes a tubular retort with an open side, a heater outside the retort for heating the sintering volume, an end cap sealing the open side, a forming gas line for supplying gas, and a heat exchanger to heat the forming gas before it enters the sintering volume. The heat exchanger is strategically placed between the heater and the retort's sidewall to efficiently heat the gas to the required temperature.
Additionally, the furnace features a pressure control mechanism, a control system for managing gas flow and pressure, and sensors for monitoring moisture and gas levels in the sintering volume. The design also incorporates baffle shields to regulate temperature, a dip tube for removing debinding gases, and an inert purge gas supply to keep decomposition gases away from the retort walls. The heat exchanger is specifically constructed as a stainless-steel tube with a length greater than the sintering volume, ensuring optimal heating efficiency throughout the process. This patented furnace design aims to enhance the debinding and sintering process for additively manufactured parts, offering a comprehensive solution for achieving high-quality results in a controlled environment.
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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.
