High-Energy Beam Contour Cutting for Small Slot Accuracy
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Solution Overview
Problem
Current numerically controlled cutting machines, particularly those using high-energy beams, face challenges in efficiently processing contours that lead to contour damage, often skipping critical cuts due to small size discrepancies, requiring manual intervention and increasing operational effort.
Innovation Solution
A control unit is developed to automatically recognize and process defined contours, such as I-slots and T-slots, by overriding the contour damage avoidance function and averaging line movements to minimize errors, ensuring that critical cuts are made even if they are identified as bottlenecks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the contour damage avoidance function is activated to prevent contour violations, then the reliability of cutting is improved, but the productivity deteriorates due to skipping critical cuts
Solution Approach 1:
The system dynamically changes the operational parameters of the contour damage avoidance function by introducing a tolerance value that allows slight contour violations. When the beam diameter minus the contour width is less than the tolerance, the system permits cutting despite potential contour damage, thus maintaining productivity while preserving sufficient reliability for the application
2Manufacturing precision
If the contour damage avoidance function skips contours with potential damage, then the manufacturing precision is improved, but the ease of operation deteriorates due to manual intervention requirements
Solution Approach 1:
The system implements self-service by automatically determining whether to apply contour damage avoidance based on predefined tolerance criteria. The control unit autonomously evaluates each contour against the tolerance value and decides whether to permit cutting without operator intervention, thereby maintaining manufacturing precision while significantly improving ease of operation
3Manufacturing precision
If the beam diameter is reduced to match small contour widths, then the manufacturing precision is improved, but the device complexity increases due to precise beam control requirements
Solution Approach 1:
Rather than reducing the beam diameter to match small contour widths (which would increase device complexity), the system changes the operational parameter by introducing a tolerance value that accommodates the existing beam diameter. This allows the system to maintain both manufacturing precision and simpler device complexity by accepting slight deviations within the tolerance range
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 solution simplifies the cutting process, reduces manual effort, and ensures accurate processing of complex contours, enhancing the efficiency and precision of high-energy beam cutting machines by automatically generating intended cuts while tolerating slight deviations.
Implementation Method 1
a high-energy beam, in particular laser or electron beams, to make recesses in metallic workpieces
Implementation Method 2
a high-energy beam penetrates into the workpiece and generates a melt there
Data Source
Figure 1
Figure 2~6
AI summary
The invention relates to a method for detecting and processing predefined contours during severing of a solid body by means of a high-energy beam. To this end, the defined contours are stored in a control unit that controls the severing (S10), and when they occur in an NC program are detected by the control unit (S12). The control unit deactivates the function for avoiding contour breaches (S13), and generates a cutting gap (S14) in accordance with a programmed contour. According to the invention, the high-energy beam travels along the contour with an averaged line movement.