Device and method for multi-directional ultrasonic droplet jetting light-curing additive manufacturing

Abstract

The invention relates to a multi-directional ultrasonic micro-droplet jetting and photocuring additive manufacturing device and method and belongs to the field of additive manufacturing. Five identical two-axis movement assemblies are separately fixed to four side surfaces and one top surface of a rack, a material supply system bracket is fixed to the upper surface of a bracket, a material supply system is fixed to the material supply system bracket, and a base plate is fixed to the rack. Focused ultrasonic transducers are used as jetting driving force, the movement of the transducers on the five two-axis movement assemblies is controlled, and materials are continuously supplied to the focused ultrasonic transducers by a liquid storing tank. The multi-directional ultrasonic micro-droplet jetting and photocuring additive manufacturing device has the advantages that micro-droplets are jet by adopting a focused ultrasonic technology, jetting precision is high, jetting speed is high, the sizes of liquid drops are not limited by a nozzle, and the blockage of a sprayer is avoided; by adopting the focused ultrasonic transducers to simultaneously work in five directions, three-dimensional additive manufacture can be realized, the mechanical properties of molded components are controllable in all directions, an auxiliary support structure does not need to be additionally arranged for molding, a complicated after-treatment technology is avoided, and manufacture cost is reduced.

Description

technical field [0001] The invention relates to the field of additive manufacturing, in particular to a device and method for multi-directional ultrasonic droplet jetting photocuring additive manufacturing. Background technique [0002] As a kind of additive manufacturing technology, light-curing additive manufacturing technology is widely used in aerospace, mold casting, industrial manufacturing, design, biomedicine and automobiles, and has achieved remarkable results. Prospects. The existing stereolithography additive manufacturing technologies mainly include stereolithography (SLA), multi-jet (PolyJet), digital light processing (DLP) and continuous liquid surface production (CLIP). [0003] The working principle of stereolithography additive manufacturing technology is that the laser beam passes through the scanner controlled by the numerical control device, and irradiates the surface of the liquid photosensitive resin according to the designed scanning path, so that a l...

AI Technical Summary

Problems solved by technology

[0008] The present invention provides a device and method for multi-directional ultrasonic micro-droplet injection photocuring additive manufacturing to solve the problem that the existing photocuring additive manufacturing technology has a slow forming speed, can only be continuously solidified and accumulated in one dimension, and forms complex structural samples. The parts need to be supported, the failure rate is high during the forming process, and the mechanical properties of the formed sample are uncontrollable in all directions.

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