Copper Laser Welding Nozzle With Aligned Gas Ports for Laminar Shielding
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Solution Overview
Problem
Existing laser welding technologies produce dust that leads to turbulent flows and energy attenuation, resulting in false welding due to inadequate shielding gas protection.
Innovation Solution
A laser welding copper nozzle with a gas intake port and exhaust port aligned in the same straight line, allowing for independent control of shielding gas flow to form a stable laminar layer, reducing turbulence and preventing false welding.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional laser welding is performed without aligned gas ports, then the structure is simpler, but dust causes turbulent flow and energy attenuation leading to false welding
Solution Approach 1:
The nozzle is segmented into distinct gas intake and exhaust ports positioned at specific locations, with the laser channel separated from the gas flow path. This segmentation allows independent control of shielding gas flow and laser beam transmission, preventing turbulence while maintaining welding quality.
Solution Approach 2:
The gas intake and exhaust ports are positioned in different spatial dimensions relative to the laser channel, creating a three-dimensional arrangement where gas flows perpendicular to or parallel to the laser path without intersecting. This dimensional separation eliminates turbulent flow while preserving structural compactness.
2Stability of the object's composition
If gas intake and exhaust ports are aligned in the same straight line with the laser channel, then shielding gas forms stable laminar flow improving protection effect, but the device structure becomes more complex
Solution Approach 1:
The gas intake port, gas exhaust port, and laser channel are merged into a single integrated nozzle body structure. This consolidation achieves stable laminar gas flow and effective dust removal without requiring separate external components, thereby maintaining structural simplicity while improving gas flow stability.
Solution Approach 2:
The nozzle structure implements local quality optimization by positioning gas ports and laser channel in specific locations with precise dimensional relationships. The local structural arrangement around the gas flow path creates favorable flow conditions while the overall structure remains compact and simple.
3Loss of energy
If multiple gas intake and exhaust ports are provided for multi-level cleaning, then light-blocking particles are more effectively filtered reducing energy attenuation, but the device complexity increases
Solution Approach 1:
The nozzle is segmented into multiple gas intake ports and exhaust ports positioned at different locations along the laser channel path. This segmentation creates multiple stages of gas flow that progressively remove dust and light-blocking particles, reducing laser energy attenuation while maintaining a relatively simple integrated structure.
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 solution effectively improves welding protection by forming a stable laminar layer, reducing energy attenuation and preventing false welding by filtering light-blocking particles and maintaining a stable gas flow.
Implementation Method 1
the shielding gas forms a stable laminar layer in the welding area
Implementation Method 2
a gas suction device to extract the gas from the gas exhaust port through the gas extraction channel
Implementation Method 3
An axis of the gas intake port and an axis of the gas exhaust port are in the same straight line
Data Source
AI summary
A laser welding copper nozzle, a laser welding auxiliary apparatus and a laser welding device are provided. In some embodiments, the laser welding copper nozzle includes: a gas intake port configured to be in communication with a gas intake channel, so as to enable a blowing device to blow a gas to the gas intake port through the gas intake channel during laser welding; and a gas exhaust port configured to be in communication with a gas extraction channel, so as to enable a gas suction device to extract the gas from the gas exhaust port through the gas extraction channel during the laser welding. An axis of the gas intake port and an axis of the gas exhaust port are in the same straight line, and a laser channel for allowing laser to pass during the laser welding is formed between the gas intake port and the gas exhaust port.