How to determine if the laser cutting speed is appropriate?

How to determine if the laser cutting speed is appropriate?

To determine whether the laser cutting speed is appropriate, multiple factors need to be considered comprehensively, including material type, thickness, laser power, and cutting quality requirements. Here are some indicators to determine whether the cutting speed is appropriate:

1. Quality of cutting edges:

• Smooth and burr free: Ideally, the cutting edge should be smooth and burr free. If the cutting speed is too fast, it may cause rough cutting edges and burrs.
• Verticality: The cutting edge should be perpendicular to the surface of the material. If the cutting speed is too slow, it may cause the cutting edge to tilt, affecting the cutting accuracy.
• Slag accumulation: Slow cutting speed can cause slag to accumulate at the cutting edge, affecting cutting quality.

2. The form of cutting sparks:

• Spread evenly: The sparks generated during cutting should spread evenly. If the cutting speed is too fast, the spark will tilt backwards, while if the cutting speed is too slow, the spark will concentrate at one point and cannot effectively remove the slag generated by the cutting.

3. The situation on the back of the material:

• No obvious burn marks: Cutting too fast can cause obvious burn marks on the back of the material, and even burn through the material.

4. Auditory perception:

• Smooth cutting sound: During the cutting process, a smooth cutting sound should be heard. If the cutting speed is too fast, there may be harsh noise, while if the cutting speed is too slow, the cutting sound will become intermittent.

5. Experience judgment:

• Choose initial cutting speed based on experience: For commonly used materials, operators can choose an initial cutting speed based on experience and then fine tune it according to the cutting effect.
• Gradually adjust the cutting speed: You can first use a lower cutting speed for testing, and then gradually increase the cutting speed until you find the optimal cutting speed.

Here are some suggestions:

• Refer to the parameter table provided by the laser cutting machine manufacturer: Laser cutting machine manufacturers usually provide recommended cutting parameters for different materials, including cutting speed. You can refer to these parameters for setting.
• Conduct cutting test: Before formal cutting, it is best to conduct a cutting test and adjust the cutting speed according to the cutting effect until the best cutting speed is found.

Please note that the above information is for reference only, and the specific cutting speed needs to be adjusted according to your actual situation