Voxeljet has filed a patent for a process and apparatus using a spectrum converter to produce 3D moldings. The device includes a construction platform, coater, print head, and sintering unit with radiation filters. This innovative technology aims to enhance the efficiency of powder-based printing processes. GlobalData’s report on Voxeljet gives a 360-degree view of the company including its patenting strategy. Buy the report here.

According to GlobalData’s company profile on Voxeljet, Additive manufacturing monitoring sensors was a key innovation area identified from patents. Voxeljet's grant share as of January 2024 was 44%. Grant share is based on the ratio of number of grants to total number of patents.

3d printing device with spectrum converter for sintering molded parts

Source: United States Patent and Trademark Office (USPTO). Credit: Voxeljet AG

The patent application (Publication Number: US20240025118A1) describes a device for producing 3D molded parts using a powder-based printing process. The device includes a construction platform, a coater for applying construction material, a print head for selectively applying an absorber, and a sintering unit with radiators and a radiation filter. The sintering unit passes over the construction platform after the absorber is applied, ensuring precise temperature control for sintering.

Furthermore, the patent application details a method for manufacturing molded parts using the described device. The method involves applying particulate material, heating it to a base temperature, selectively printing the absorber, and then sintering the material with controlled temperature variations. The method includes adjusting radiator power, controlling heating through radiator speed, and utilizing different spectra for sintering units. This innovative approach eliminates the need for a stationary overhead radiator, enhancing efficiency and precision in the 3D printing process.

To know more about GlobalData’s detailed insights on Voxeljet, buy the report here.

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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.