SYSTEM AND METHOD FOR CONTROLLING TEMPERATURE IN THREE-DIMENSIONAL (3D) PRINTER

• Main Authors: GARY D REDDING, VIKTOR SUKHOTSKIY, CHRISTOPHER T CHUNGBIN, PALGHAT S RAMESH, PAUL J MCCONVILLE, PETER M GULVIN
• Format: Patent
• Language: English; Japanese
• Published: 14.09.2023
• Subjects: ADDITIVE MANUFACTURING TECHNOLOGY; ADDITIVE MANUFACTURING, i.e. MANUFACTURING OFTHREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVEAGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING,STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING; CASTING; MAKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; PERFORMING OPERATIONS; POWDER METALLURGY; TRANSPORTING; WORKING METALLIC POWDER

To provide a system and method for controlling the internal temperature of an ejector of a 3D printer.SOLUTION: A printer 100 comprises a pump 110 that includes an internal cavity to hold a liquid-metal printing material 120 and a nozzle 116 configured to eject a plurality of liquid-metal drips, and an actuation coil that is configured to supply a pulse to a liquid metal and generate an electromagnetic force on the liquid metal, the actuation coil supplying a pulse with a first time-varying current pulse and the electromagnetic force allowing the nozzle to eject drips of liquid metal. The actuation coil also supplies a pulse with a second time-varying current pulse, in which case the electromagnetic force is not sufficient to eject liquid drips. There is also disclosed a method for spraying metal in a printer, to minimize the difference between a temperature at a pump upper part and a temperature at a pump lower part.SELECTED DRAWING: Figure 1 【課題】３Ｄプリンタのエジェクタ内の温度を制御するためのシステム及び方法を提供する。【解決手段】ポンプ１１０であって、液体金属印刷材料１２０を保持する内部空洞と、複数の液体金属滴を吐出するように構成されたノズル１１６と、を含む、ポンプと、液体金属にパルスを供給して、液体金属上に電磁力を発生させるように構成された作動コイルであって、第１の時変電流パルスでパルスを供給し、電磁力は、ノズルに液体金属の液滴を吐出させる、作動コイルと、を有する、プリンタ１００。作動コイルはまた、第２の時変電流パルスでパルスを供給し、この場合、電磁力は、液滴を吐出するのに十分ではない。ポンプの上部の温度とポンプの下部の温度との間の差が最小化される、プリンタにおける金属噴射のための方法も開示される。【選択図】図１