NC Part Program for Laser Pipe Cutting
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Solution Overview
Problem
The existing laser cutting systems require multiple NC programs to cut multiple tube parts from a tube, which can be inefficient and increase the complexity of the cutting process.
Innovation Solution
A method that uses a single NC part program to cut all identical pipe parts, regardless of their position on the tube, by deactivating specific cutting operations based on pipe part properties such as GTS-capability, rotatability, and position relative to the clamping device, to reduce the number of programs needed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If multiple NC programs are used to cut tube parts at different positions, then cutting precision is maintained, but device complexity and programming complexity increase
Solution Approach 1:
The patent implements a universal NC program that can handle cutting operations at any position along the tube (beginning, middle, end) through a single program structure. The program uses positional parameters and conditional logic to adapt to different cutting scenarios, eliminating the need for separate NC programs for different positions while maintaining cutting precision.
Solution Approach 2:
The invention utilizes parameter-based control where the NC program accepts input parameters specifying the cutting position and tube geometry. By changing these parameters rather than creating different programs, the system adapts to various cutting positions and tube configurations, reducing programming complexity while preserving manufacturing precision.
2Manufacturing precision
If multiple NC programs are used for different tube part positions, then cutting accuracy is maintained, but productivity decreases due to program switching
Solution Approach 1:
The patent merges multiple position-specific NC programs into a single integrated program that handles beginning, middle, and end position cuts. This consolidation eliminates program switching overhead and reduces setup time between different cutting operations, thereby improving productivity while maintaining cutting accuracy through consistent program logic.
Solution Approach 2:
The universal NC program enables continuous cutting operations without interruption for program loading or switching. The program maintains continuous control over the cutting process from tube positioning through laser execution, eliminating breaks in the useful action that would otherwise occur during program transitions, thus enhancing productivity.
3Productivity
If a single NC program is used for all tube parts, then productivity improves, but manufacturing precision may be compromised
Solution Approach 1:
The NC program incorporates dynamic adjustment capabilities that modify cutting parameters based on the detected tube position and geometry. The program dynamically adapts feed rates, laser power, and positioning coordinates to match specific cutting requirements, ensuring manufacturing precision is maintained across different tube positions while benefiting from the efficiency of a single program structure.
Solution Approach 2:
The system implements feedback mechanisms where the NC program receives information about tube position, dimensions, and characteristics, then adjusts cutting parameters accordingly. This closed-loop control ensures that manufacturing precision is maintained despite using a single versatile program, as the program continuously adapts to the specific cutting conditions based on feedback from the system.
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 approach simplifies the cutting process by reducing the number of NC programs required, improving efficiency and flexibility in cutting multiple tube parts with varying geometries and positions.
Implementation Method 1
a laser beam source 15 to generate a laser beam 16
Implementation Method 2
The laser beam 16 emerges from the processing head 17 and is focused on the outer peripheral surface of the clamped pipe 2
Data Source
Figure 1
Figure 2
Figure 3a~3b
AI summary
The invention relates to a method for controlling a laser cutting system (1) for cutting several pipe sections (51-54) from a pipe (2) using a laser beam (16). According to the invention, an NC program is created for each of the pipe parts (51-54) to be cut, said program having an initial separation cut for cutting the initial geometry (51a-54a) and a final separation cut for cutting the final geometry (51b-54b) of each pipe part (51-54). The machining of the pipe parts (51- 54) to be cut is carried out on the basis of the NC part programs. If specific basic machining conditions exist for at least one pipe part (51-54) to be cut, the programmed initial or final separation cut in the associated NC part program is deactivated and not carried out.