An integrated jet printing device for additive and subtractive material manufacturing

Abstract

The invention discloses a spray printing device integrating a plasma jet technology. The device comprises a spraying head, a high pressure power source, a collecting base plate and a liquid inlet barrel. According to the spray printing device, the high pressure power source is used for generating spray printing process electric field requirements and serving as a plasma jet excitation source, gas discharge is used for generating plasma jets, unified application of electric fluid spray printing machining (additive machining) and plasma etching machining (subtractive machining) is achieved on one device, and real-time surface modification of plasmas on electric spray printing materials in the machining process, sintering curing of electric spray printing deposition materials and additive and subtractive synchronization machining are included for achieving quick molding of complex patterns and multi-layer structures. By means of the spray printing device, application in a combination manner or an array manner can be achieved, and the spray printing device can be used for preparing large-area multi-layer complex structures. Through application of the spray printing device, the machining efficiency and the material performance are improved, and wide application prospects in the fields of MEMS machining and manufacturing and electric fluid jet printing are achieved.

Description

technical field [0001] The invention belongs to the field of jet printing manufacturing, and in particular relates to a jet printing device and method integrating a material-adding processing method of electro-spray printing and a material-subtractive processing method of plasma etching. technical background [0002] Inkjet printing technology uses patterned deposition of ink to prepare micro-nano structure devices, and is widely used in micro-electromechanical, solar cells, display panels, biomedical and other fields. Electrofluid jet printing technology applies the mechanism of electrohydrodynamics, and uses the electric field force to pull the ink out of the nozzle to form a Taylor cone. The charged droplet at the nozzle will be subjected to the shear stress of the electric field. When the local electric field force exceeds the surface tension of the liquid , the charged liquid is sprayed from the nozzle, and then breaks into a liquid column or a small droplet. By changi...

AI Technical Summary

Problems solved by technology

[0012] The purpose of the present invention is to propose an electrojet printing device and process method integrating plasma jet technology, realize the joint application of electrofluid jet printing (additive processing) and plasma etching processing (subtractive processing), and solve the current problems. There are technical problems such as the low efficiency of additive manufacturing alone, the need for secondary surface treatment, the need for additional sintering after additive processing, and the difficulty of cutting during electrospinning patterning.

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