Laser Welding Fume Extraction Layout for High Dust Collection
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Solution Overview
Problem
Existing fume elimination systems for laser welding have low dust collection efficiency due to air currents with low flow rates near the welding area, leading to fume spread and contamination.
Innovation Solution
A welding apparatus with suction nozzles on both sides of the welding area and a hood above, along with a conveyor belt stage and movable lighting units, to efficiently draw and discharge fumes generated during laser welding.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-generated harmful factors
If a hood is disposed to cover the upper portion of the welding apparatus, then fume can be drawn using vacuum, but air current with low flow rate is formed in the vicinity of the welding portion, resulting in low dust collection efficiency
Solution Approach 1:
The fume elimination system is divided into multiple suction nozzles positioned at different locations (upper, lower, left, and right sides of the welding portion) rather than using a single hood structure. This segmentation allows each nozzle to independently create high-velocity air currents at its respective position, collectively achieving comprehensive fume removal with high dust collection efficiency while maintaining effective fume elimination capability.
2Productivity
If suction nozzles are disposed on both sides of the welding portion, then fume collection efficiency is improved, but device complexity increases
Solution Approach 1:
Multiple suction nozzles are integrated into a single fume elimination unit that is coupled to the welding apparatus. The nozzles are positioned at strategic locations (upper, lower, left, and right sides) and work together as a unified system, reducing the need for multiple separate fume elimination devices while achieving high fume collection efficiency through coordinated operation.
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
Rapid and efficient elimination of fumes is achieved, preventing contamination of the welding area and ensuring high fume collection efficiency.
Implementation Method 1
a fume elimination unit including suction nozzles disposed on at least both sides of the welding portion and configured to draw and discharge fume generated during welding of the welding object
Implementation Method 2
a welding unit provided on the body to weld the welding object placed on the stage
Data Source
AI summary
Provided is a welding apparatus having a fume elimination function. The welding apparatus efficiently eliminates fume generated while a welding object is being welded using a laser.