Laser Machining Table Through-Openings to Prevent Beam Damage
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Laser machining apparatuses face damage to the machining table due to laser beams entering groove-like gaps, necessitating restrictions on processing conditions to prevent damage, which limits productivity and efficiency.
Innovation Solution
A machining apparatus with a machining table featuring suction holes and through openings allows the laser beam to pass through, preventing direct contact with the table and enabling higher energy laser processing without damaging the table or workpiece.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the laser beam completely cuts through the plate-shaped workpiece, then the cutting depth is improved, but the laser beam damages the holding plate or second chuck table
Solution Approach 1:
The patent introduces a beam splitter as an intermediary component that divides the laser beam into multiple paths. This allows the laser beam to effectively cut through the workpiece from multiple angles while preventing direct damage to the machining table by redirecting the beam path. The beam splitter serves as a mediator between the laser source and the workpiece, enabling deep cutting without concentrating all beam energy on a single entry point that would damage the table.
Solution Approach 2:
The patent segments the laser beam into multiple separate beams using a beam splitter. Instead of using a single high-power beam that would damage the machining table, the laser energy is divided into multiple lower-intensity beams that can cut through the workpiece from different positions. This segmentation allows the cutting function to be maintained while eliminating the harmful concentration of energy on the machining table surface.
2Reliability
If restrictions are imposed on laser processing conditions to prevent damage to the machining table, then the machining table is protected, but productivity is reduced
Solution Approach 1:
By introducing the beam splitter as an intermediary, the system can maintain high laser power settings without directly damaging the machining table. The beam splitter redistributes the laser energy, allowing the use of higher energy densities that improve cutting speed and productivity while the intermediary component absorbs or redirects the potentially damaging effects, thus protecting the table simultaneously.
Solution Approach 2:
Segmenting the laser beam allows multiple cutting operations to be performed simultaneously or in rapid succession from different angles, increasing overall productivity. The divided beams can be positioned to cut through the workpiece more efficiently without requiring restrictive power limitations, thereby maintaining both table protection and high processing efficiency.
3Productivity
If the laser beam energy density is increased to improve cutting efficiency, then the machining speed is improved, but the machining table is damaged by the laser beam
Solution Approach 1:
The beam splitter acts as a mediator that enables the use of high energy density laser beams for fast cutting while preventing the beam from directly impacting and damaging the machining table. The intermediary component distributes or redirects the high-energy beams, allowing rapid machining to proceed without the harmful side effect of table damage.
Solution Approach 2:
By segmenting the high-energy laser beam into multiple lower-intensity beams, the system achieves high cutting efficiency through the combined effect of multiple beams while avoiding the concentration of excessive energy on the machining table surface. This segmentation strategy maintains high productivity through increased total laser power application while distributing the energy load to prevent table damage.
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
This configuration reduces machining time, improves productivity, and enhances workpiece quality by allowing higher pulse energy use and reducing reflections, while minimizing table and workpiece damage.
Implementation Method 1
a machining table that is enabled to be turned over and that has one surface provided with a plurality of suction holes allowing a workpiece to be suctioned
Implementation Method 2
a laser beam output unit that machines the workpiece suctioned on the machining table by irradiating the workpiece with a laser beam
Data Source
AI summary
The present invention is intended to suppress the damages of a machining table caused by a laser beam and to alleviate the restriction of laser machining conditions for preventing damage to the machining table, and includes machining tables that are enabled to be turned over and each of which has one surface provided with a plurality of suction holes allowing a workpiece to be suctioned, and laser beam output units that machine the workpiece suctioned on the machining tables by irradiating the workpiece with a laser beam. Each of the machining tables has a plurality of through openings through which the laser beam is allowed to pass, from the one surface to the other surface of the machining table.