Causes and solutions for noise during cutting by laser cutting machines

In the field of modern industrial manufacturing, laser cutting machines are known for their high precision and high efficiency. However, the noise problem generated during the cutting process has always been the focus of users. This article will explore in depth the causes of noise during cutting by laser cutting machines and propose corresponding solutions in order to provide useful references for related industries.

1. Causes of noise during cutting by laser cutting machines

‌1. Wear and insufficient lubrication of mechanical parts‌

The mechanical parts of laser cutting machines, such as bearings and gears, may produce metal friction noise due to wear or insufficient lubrication during long-term use. This noise usually manifests as a continuous hum or sharp friction sound.

‌2. Transmission system failure‌

The transmission system, including motors, transmission belts, linear guides, etc., may also cause noise if there is a failure or wear. For example, damage to motor bearings, loose or aging transmission belts, lack of lubrication of linear guides, etc., may all cause abnormal noises.

‌3. Aerodynamic noise‌

During the cutting process of the laser cutting machine, the high-speed rotating saw blade will generate aerodynamic noise, which mainly includes tooth tip noise, exhaust noise and eddy current noise. When the frequency of eddy current separation is consistent with the natural frequency of the saw blade, resonance will occur and a screaming sound will be emitted. At this time, the noise is stronger.

‌4. Load abnormality and vibration‌

Plates that exceed the load range of the equipment may cause the mechanical burden to increase, and the motor overload operation may cause abnormal noise. At the same time, the laser cutting machine may also generate noise due to vibration when the installation ground is uneven and the fixation is unstable.

‌5. Operating environment issues‌

The working environment of the laser cutting machine also has a certain impact on its noise level. For example, dust, debris or foreign objects stuck in the slide rails, transmission chains and other parts will affect the normal operation of the equipment and emit abnormal sounds.

2. Solutions to noise during laser cutting

‌1. Strengthen equipment maintenance and lubrication‌

For the problems of mechanical parts wear and insufficient lubrication, the mechanical parts of the laser cutting machine should be regularly inspected and maintained, severely worn parts should be replaced in time, and all parts should be fully lubricated. This can effectively reduce the generation of metal friction noise.

‌2. Transmission system optimization and upgrade‌

For noise problems caused by transmission system failures, components such as motors, transmission belts, and linear guides should be optimized or upgraded. For example, replace damaged motor bearings, adjust the tension of transmission belts, add lubricants to linear guides, etc. At the same time, more advanced transmission technologies and components can also be considered to improve the overall performance of the equipment and reduce noise levels.

‌3. Aerodynamic noise control‌

For aerodynamic noise, noise can be reduced by improving the cutting process and optimizing the saw blade design. For example, use low-noise saw blades, adjust the saw blade speed and cutting depth, etc. In addition, soundproof covers or soundproof walls can be set around the equipment to isolate the spread of noise.

‌4. Load management and vibration control‌

To avoid noise caused by abnormal load and vibration, the load range of the laser cutting machine should be strictly controlled, and the equipment should be installed and fixed in accordance with the specifications. At the same time, vibration isolators, shock pads and other components can be used to reduce vibration transmission, thereby reducing the noise level.

‌5. Improve the operating environment‌

Keeping the working environment of the laser cutting machine clean and tidy is also an effective means to reduce noise. Dust and debris in parts such as slide rails and transmission chains should be cleaned regularly to ensure that the equipment can operate normally. In addition, sound-absorbing materials or structures can be set around the equipment to absorb and block the spread of noise.

III. Conclusion

The noise problem generated by the laser cutting machine during cutting is a complex and multifaceted problem, which requires comprehensive consideration and solution from multiple aspects such as mechanical components, transmission system, aerodynamic noise, load management and vibration control, and operating environment. By strengthening equipment maintenance and lubrication, optimizing and upgrading the transmission system, controlling aerodynamic noise, load management and vibration control, and improving the operating environment, we can effectively reduce the noise level of the laser cutting machine during cutting and improve the overall performance of the equipment and user experience.