Voxeljet has been granted a patent for a 3D printing method that includes a device for setting an overfeed. The method involves applying particulate material in layers and measuring the overfeed at multiple locations during the coating process to enhance the production of three-dimensional components. 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 June 2024 was 45%. Grant share is based on the ratio of number of grants to total number of patents.
3d printing method with overfeed measurement technique
The granted patent US12036732B2 outlines a method for producing three-dimensional components through a layered application of particulate material using a coating unit equipped with a scraper apparatus. The process involves selectively solidifying the particulate material while measuring the overfeed—defined as the quantity of powder pushed in front of the scraper at the end of the build space—at multiple locations during the coating pass. This measurement can occur at the end of the coating pass, across the entire width of the coater, and is facilitated by various sensors that can be positioned along the coating unit's length. The method emphasizes the direct control of particulate material supply based on the measured overfeed, enhancing the precision of the material application.
Additionally, the patent describes the use of sensors, which may be binary or arranged in a line parallel to the coating unit, to measure the overfeed at different locations. These sensors can be positioned at the end of the coating path or integrated into the side walls of the build container. The method allows for the regulation of the coating unit based on the overfeed measurements, potentially identifying defects in the material application. The overfeed can also be directed into a waste shaft, which may be angled or rotated, ensuring efficient management of excess material. Overall, the patent presents a systematic approach to improving the accuracy and efficiency of three-dimensional component production through advanced measurement and control techniques.
To know more about GlobalData’s detailed insights on Voxeljet, buy the report here.
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