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The CNC cutting machine is an automated equipment used for precise and efficient cutting. Its core working principle involves converting the desired design into a machining program using specialized software, typically in G-code format. This program is then fed into the numerical control system, which guides the cutting machine to perform the required operations accurately.
CNC cutting machines come in various types, including flame cutting, plasma cutting, waterjet cutting, and laser cutting. While each method has its unique characteristics, the fundamental programming principles remain similar. Therefore, most CNC plasma cutting software can also be adapted for use with waterjet or laser cutting systems, provided the G-code instructions are properly customized.
Although different manufacturers may use distinct G-code instruction sets, many general-purpose CNC cutting programming tools allow users to customize these codes. This flexibility ensures that most CNC cutting tasks can be accomplished without limitations.
CNC cutting programming software can be broadly categorized into two types: general-purpose and industry-specific. General-purpose software, such as FastCAM, IBE, StarCAM, and SmartNest, allows users to import designs from CAD software like AutoCAD and convert them into G-code for cutting. These programs vary depending on their version and the specific cutting processes they support.
Industry-specific CNC cutting software, on the other hand, is tailored for particular applications. For example, Wentai software is widely used in the advertising industry, while PM2000 is designed for cutting galvanized ducts. These specialized tools are optimized for specific tasks, enabling integrated workflows that include part design, material layout, and cutting program generation within a single platform. Â
CNC Cutting Machine Programming Common Issues and Solutions
1. The programming software cannot open or runs slowly.
This often happens due to excessive temporary files or long-term usage. It’s recommended to clean up the system or reinstall the software if needed. Additionally, system failures or too many files on the desktop can also cause performance issues.
2. The output shows certain color lines (which can damage the workpiece).
This issue usually occurs due to software glitches. Manually check the code and remove or modify the problematic lines. If this isn't possible, consider re-outputting the program.
3. The program cannot be read.
Check the file name for any Chinese characters, special symbols like double quotes, or excessively long names. Ensure the USB drive is properly connected and functioning.
4. Plasma cutting machine interface resolution issues.
Make sure the software settings match the machine's display requirements. Adjust the resolution accordingly for optimal performance.
5. Pay attention to the plate size during programming and leave a 10mm cutting margin on one side.
Other important parameters include arc voltage, arc height, delay time, movement speed, and the automatic height adjustment system. Each plays a critical role in ensuring accurate and high-quality cuts. For example, arc voltage controls the energy output, while arc height affects the cut quality. Delay time helps in proper piercing, and movement speed must be set to an optimal level for best results.
Generally, manual cutting machines are gradually being replaced by CNC cutting machines due to their advanced automation features. Understanding the programming of CNC systems is essential for effective operation. Below, we’ll explain the programming methods and working principles of CNC systems in detail.
From a technical standpoint, a CNC cutting machine requires a specific program to guide it during operation. This program is called a CNC cutting program. How does this program get generated?
1. Automatic Programming: Using computers or dedicated programming machines to create part programs, especially suitable for complex shapes.
2. Manual Programming: Involves analyzing the part drawing, calculating coordinates, and inputting the program manually into the system.
3. Active Programming: Similar to automatic programming, but uses the CNC machine's computer or knitting machine to compile the program.
4. CAD Integration: By using CAD software along with our company’s cutting application software, you can input your design and generate the cutting code directly. This method is user-friendly and cost-effective, making it a popular choice among small and medium enterprises.