Electrochemical based processing device and method

Abstract

The invention relates to an electrochemical-based processing device and method, including a forming platform, a power supply and at least one forming mechanism, the forming mechanism is arranged below the forming platform and can move relatively with the forming platform, and the forming mechanism includes a photoelectric wheel, a light source and an ionic liquid tank. The ionic liquid is stored in the ionic liquid tank. The photoelectric wheel can be rotated and partially immersed in the ionic liquid. The photoelectric wheel includes an inner transparent conductive layer and an outer light-controlled conductive layer that are combined with each other. The transparent conductive layer and the One pole of the power supply is electrically connected, and the forming platform is electrically connected to the other pole of the power supply. The light source is arranged inside the photoelectric wheel and the light beam emitted by the light source can selectively illuminate the photoelectric wheel in the direction of the forming platform. The present invention can realize flexible and accurate selective electrodeposition additive manufacturing or selective electrolytic etching, can comprehensively improve the precision, efficiency and control sensitivity of electrochemical deposition additive or electrolytic etching, is beneficial to reduce costs, and is convenient for complex and large-scale manufacturing. Production of area 3D models.

Description

technical field [0001] The invention belongs to the technical field of electrodeposition and electroetching, in particular to an electrochemical-based processing device and method. Background technique [0002] In the existing electrochemical deposition, micro-electroforming or electrolysis process, the process is relatively complicated and the cost is high, and there are generally problems of lack of flexibility and insufficient precision. [0003] For example, in the process of electroforming, it is usually necessary to customize anodes, and different models of electroforming need to customize different anodes, which is costly and time-consuming for a small number of models. Typical electrolytic processing, such as mask electrolysis, requires multi-step processes such as gluing, exposure, and development of the anode, which is time-consuming, laborious, and costly. Similarly, different anode mask patterns need to be customized for different processing patterns. Even if t...

AI Technical Summary

Problems solved by technology

Even if the electrolytic transfer process is used, it is still necessary to make a targeted pattern mask (tool cathode), which is less flexible

[0004] The existing electrodeposition or electroetching technology generally needs to make a closed cavity for electrolyte pumping to achieve the purpose of rapid renewal. The process is cumbersome and consumes a relatively large amount of electrolyte, and the existing technology is not suitable for the formation of multi-layer three-dimensional structures.

The existing technology uses programmable electrode arrays for electrolytic machining, either there is a problem that the machining accuracy cannot be guaranteed, or there is a problem that the ability to conduct current is limited and the molding speed is affected, and the sensitivity to current on-off control needs to be improved

If the traditional selective electrodeposition method is used, that is, the nozzle is used to spray electrolyte (or ionic liquid, or ionic solution) and energized for electrodeposition to form metal parts by layer-by-layer deposition, the process and the structure of the device are still relatively complicated. Due to the use of a movable nozzle or multiple array electrodes, the number is limited and the accuracy of the workpiece is limited. Not only is the printing speed slow, but also the electrolyte covers the entire model surface during the electrodeposition process, and the entire surface of the model will be damaged during the electrodeposition process. Electrodeposition occurs, affecting the molding accuracy of the model

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