US Patent Issued on Oct. 21 for "Extrusion device for enhancing bonding strength between 3D printing layers" (Chinese Inventor)

ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,447,676, issued on Oct. 21.

"Extrusion device for enhancing bonding strength between 3D printing layers" was invented by Chang Liu (Hefei, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "An extrusion device for enhancing a bonding strength between 3D printing layers is provided, which includes: a multi-axis driving device, an extrusion unit, and a laser heating unit. The extrusion unit includes a base and an extruder. The base is disposed on the multi-axis driving device. The multi-axis driving device is configured to drive the extrusion unit to move. The laser heating unit includes an annular guide rail, a sliding seat, and a laser emitter. The la...