Adsorbable Electromagnetic Field Assembly for Crack-Free Laser Processing
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Solution Overview
Problem
Traditional laser processing of large components is hindered by issues such as pores and cracks, and existing electromagnetic field devices are cumbersome and difficult to integrate with laser processing equipment for on-site use.
Innovation Solution
An electromagnetic field auxiliary device using an integrated iron core to create a stable and uniform directional magnetic field, combined with a brush device to provide a stable directional electric field, forming a Lorentz force that improves laser processing quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If electromagnetic field equipment is made strong enough to solve laser processing defects, then the processing quality improves, but the equipment becomes cumbersome and difficult to move for on-site use
Solution Approach 1:
The patent combines the electromagnetic field device with the laser processing equipment into an integrated system. The electromagnetic coil assembly is mounted on the laser processing head, allowing the magnetic field generation and laser processing to occur simultaneously at the same location, eliminating the need for separate bulky electromagnetic field equipment
Solution Approach 2:
The electromagnetic coil assembly is designed to move with the laser head during processing. The device transitions from a static electromagnetic field system to a dynamic one that follows the laser beam movement, enabling flexible on-site processing while maintaining adequate magnetic field strength at the processing zone
2Ease of operation
If electromagnetic field device size is reduced for portability, then ease of operation improves, but the magnetic field strength becomes insufficient for effective laser processing
Solution Approach 1:
The electromagnetic coil assembly is positioned locally at the laser processing head, concentrating the magnetic field generation exactly where the laser processing occurs. This localized approach provides sufficient magnetic field strength at the processing zone without requiring a large overall device structure
Solution Approach 2:
The electromagnetic field generation is segmented into modular coil assemblies that are integrated with the laser head. This segmentation allows the magnetic field system to be compact and portable while still providing adequate field strength through optimized coil positioning and configuration
3Device complexity
If four magnetic wheels are used to provide steady-state magnetic field, then the device structure is simple, but the magnetic field distribution is not uniform and directional control is poor
Solution Approach 1:
The patent merges the electromagnetic coil assembly with the laser processing head into a single integrated unit. This combination allows for optimized coil arrangement that generates uniform magnetic field distribution while maintaining relatively simple device structure
Solution Approach 2:
The patent incorporates sensors to detect the position and state of the workpiece, with the control system adjusting the electromagnetic coil parameters in real-time to maintain uniform magnetic field distribution and consistent processing quality throughout the work area
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
The device ensures stable and uniform electric and magnetic fields, forming a consistent Lorentz force that enhances the quality of laser processing by reducing defects like pores and cracks.
Implementation Method 1
The electric field and magnetic field provided by the device work together to form a directional Lorentz force, which provides an external body force for the laser on-site repair
Implementation Method 2
Each lateral side is installed with an electromagnetic coil 2, and the two electromagnetic coils 2 are connected in series, and the N pole of the magnetic field of one of the two electromagnetic coils 2 point to the component to be processed 1 while the S pole of that of the other of the two electromagnetic coils 2 point to the component to be processed 1
Data Source
AI summary
Adsorbable electromagnetic field auxiliary device for large components, comprises an iron core being adsorbed on the component to be processed with an integral rectangular frame including a pair of lateral sides and a pair of longitudinal sides; lateral sides are installed with electromagnetic coils having opposite magnetic pole pointing to the component. A photoelectric sensor installed on the longitudinal side senses the real-time position of the laser head; the longitudinal opposite sides are each provided with a screw movement device and a brush device; the brush head of the brush device slides on the surface of the component forming a directional electric field; the motor controlled by the central controller adjusts the position of the brush device, so that the two brush heads and the laser head are always in a straight line to ensure the stability of the electric field in the laser processing area and uniformity.