Rifling-Type Hollow Rotating Electrode for Laser-Assisted Deposition
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Solution Overview
Problem
Localized electrodeposition technologies face challenges in precision control and particle agglomeration during composite deposition, leading to defects such as pores and protrusions, and existing methods are complex or limited by the difficulty in fabricating core-shell structured magnetic particles.
Innovation Solution
A method and device utilizing a rifling-type hollow rotating electrode with a pulsed laser for laser-assisted electrochemical composite deposition, which generates centripetal force for precise deposition, keeps nanoparticles in suspension through internal rifling structure, and forms a self-circulation system to prevent agglomeration and concentration polarization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If localized electrodeposition technology is used to deposit composite coatings, then the coating can be applied to complex shapes, but precision control is difficult and defects such as pores and protrusions occur
Solution Approach 1:
The patent replaces conventional mechanical electrodeposition with laser-induced electrochemical deposition. The laser beam (optical energy) replaces the conventional power supply to provide localized energy for electrochemical reactions, enabling precise control of deposition location and reducing defects while maintaining ability to deposit on complex shapes
Solution Approach 2:
The patent applies local quality by using a focused laser beam to create localized high-energy-density regions on the cathode surface. This allows electrochemical deposition to occur only in specific targeted areas rather than uniformly across the entire cathode, enabling precise control for complex shape deposition while maintaining high manufacturing precision
2Strength
If nanoparticles are added to improve coating performance, then wear resistance and corrosion resistance improve, but particles agglomerate during deposition
Solution Approach 1:
The patent uses laser irradiation to induce local vibration and agitation in the electrolyte at the deposition site. This mechanical vibration effect prevents nanoparticles from settling and agglomerating during the deposition process, maintaining their uniform dispersion while still achieving the desired coating performance enhancement
Solution Approach 2:
The patent employs periodic laser pulsing to create oscillating electric fields and fluid motion in the deposition zone. This periodic action continuously redistributes nanoparticles, preventing agglomeration while ensuring consistent coating quality and maintaining the stabilizing effect on particle dispersion
3Device complexity
If conventional electrodeposition is used, then the process is simple, but the surface quality is affected and forming precision of complex shapes is low
Solution Approach 1:
The patent replaces the conventional power supply and control system with a laser-based system. The laser provides both the energy source and the positioning mechanism, simplifying the overall system while dramatically improving surface quality and shape precision through optical focusing and scanning capabilities
Solution Approach 2:
The patent introduces the optical dimension by using laser beams for deposition control. This adds the ability to precisely control deposition in three-dimensional space through laser scanning and focusing, enabling high-precision complex shape formation while maintaining process simplicity through the versatility of laser technology
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Improves the precision and uniformity of composite coating deposition, suppresses air bubbles, and enhances the quality of the deposited layer by maintaining nanoparticle dispersion and accelerating the electrochemical reaction.
Implementation Method 1
the rifling-type hollow rotating electrode is rotated at a constant speed and a centripetal force is generated, which improves the precision of localized deposition, keeps nanoparticles in suspension
Implementation Method 2
forms 'self-circulation' of the solution to suppress the concentration polarization and improve the quality of the deposited layer
Implementation Method 3
The introduction of laser irradiation into the electrodeposition system can raise the cathode potential and increase the limiting current density by using the thermal effect of laser
Implementation Method 4
The localized electrodeposition technology is employed to carry out an electrochemical reaction by using a strong electric field generated between an anode tip and a cathode substrate
Data Source
AI summary
The present invention discloses a method and a device for laser-assisted electrochemical composite deposition using a rifling-type hollow rotating electrode, which relate to the field of micro-composite processing in special processing technologies. A center of a laser beam is allowed to pass through a rifling-type hollow rotating electrode and focus onto a cathode substrate. When the rifling-type hollow rotating electrode is rotated at a constant speed, an electrodeposition solution rotates in the rifling-type hollow rotating electrode and generates a certain centripetal force to improve the precision and localization of deposition. During the process of the present invention, an internal rifling structure of the electrode is rotated at a high speed so that the deposition solution generates a centripetal force. The internal rifling structure and an external helical structure of the rifling-type hollow rotating electrode make the deposition solution move upward to form a “self-circulation” system.