Laser Head Gas Supply Layout for Uniform Dross Height
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Laser processing heads often experience cutting directionality issues in dross height during laser cutting, leading to suboptimal product quality due to non-uniform assist gas flow distribution.
Innovation Solution
A laser processing head design featuring multiple gas supply holes arranged at varying angles around the axis, with assist gas supplied through these holes to create a uniform pressure distribution and reduce flow disturbances, thereby minimizing dross height variability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single supply hole for assist gas is provided in the side surface of the laser processing head, then the structure is simple, but cutting directionality occurs in dross height and product quality deteriorates
Solution Approach 1:
The single supply hole is segmented into multiple supply holes (first and second supply holes) arranged at different angular positions around the central axis. This segmentation allows independent control of gas flow in different directions, enabling uniform assist gas distribution and eliminating cutting directionality in dross height while maintaining structural simplicity.
Solution Approach 2:
Each supply hole is positioned at a specific angular location to address local flow requirements. The first supply hole supplies gas to one region while the second supply hole supplies gas to another region, creating locally optimized gas distribution that collectively achieves uniform overall distribution and consistent dross height across different cutting directions.
2Manufacturing precision
If multiple gas supply holes are arranged at varying angles, then uniform assist gas flow distribution is achieved and dross height uniformity improves, but device complexity increases
Solution Approach 1:
The supply holes are arranged asymmetrically at varying angular positions rather than symmetrically. This asymmetric arrangement optimizes gas flow distribution patterns to achieve uniform assist gas flow and consistent dross height, while the angular offsets are designed to minimize structural complexity compared to more elaborate multi-hole configurations.
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 suppresses cutting directionality in dross height and enhances product quality by ensuring a uniform assist gas flow distribution, reducing pressure rise and flow disturbances.
Implementation Method 1
assist gas supplied through these holes to create a uniform pressure distribution and reduce flow disturbances
Implementation Method 2
create a uniform pressure distribution and reduce flow disturbances
Data Source
Figure 1
Figure 2
Figure 3
AI summary
A laser processing head (1) includes a tubular main body (1a), and a gas supply part (GK) disposed in the main body (1a) and allowing an assist gas (AG) supplied from outside to flow into an internal space (Vc) of the main body (1a). The gas supply part (GK) includes a first gas supply hole (11) extending along a first axis (C11) on a plane orthogonal to an axis (CL1) of a tube of the main body (1a) and opening at an inner circumferential surface (1a2) of the main body (1a), a second gas supply hole (12) forming a predetermined angle (θc) relative to the first axis (C11) around the axis (CL1), extending along a second axis (C12) on the plane orthogonal to the axis (CL1) and opening at the inner circumferential surface (1a2), and a flow path forming ring (1d) facing the inner circumferential surface (1a2) with a predetermined interval, and forming a cylindrical space (Va) extending along the axis (CL1) between the flow path forming ring and the inner circumferential surface (1a2).