Common Problems And Solutions When CNC Plasma Cutting Machine Cuts Medium And Thick Metal Plates

CNC plasma cutting machine is a cutting equipment widely used in modern manufacturing industry, especially when cutting medium and thick metal plates, it has high cutting accuracy and efficiency. However, in actual operation, many users will encounter problems such as poor cutting quality, bending and deformation of plates during cutting, and low production efficiency. This will greatly affect the user's production efficiency. UTECH professional team sorts out these common problems for you, and explores and proposes effective solutions to help users improve cutting effects and optimize production processes.

1. The cutting quality of plasma cutting machine is poor, how to improve the cutting effect?

2. Bending and deformation occur during the cutting process of CNC plasma cutting machine, how to prevent it?

3. The cutting efficiency of CNC metal plasma cutting machine is low, how to improve production efficiency?

1. The plasma cutting machine has poor cutting quality. How to improve the cutting effect?

1.1 Cause Analysis

In the process of CNC plasma cutting, poor cutting quality is often manifested as rough cutting surface, non-straight cuts, severe burrs and other problems. The causes of these problems may include the following:

Improper power supply setting: Improper current and voltage settings of the plasma power supply may lead to unstable cutting quality.

Cutting speed is too fast or too slow: If the cutting speed is too fast, the metal sheet will not be completely melted and irregular cuts will be produced; if the cutting speed is too slow, it may cause excessive heat input and uneven cutting surface.

Nozzle wear: As the cutting time increases, the wear of the nozzle will cause the plasma arc to be unstable, thereby affecting the cutting quality.

Insufficient gas flow: Plasma cutting machine cutting requires sufficient gas flow support. Insufficient gas flow will cause unnecessary oxides to be generated during the cutting process, affecting the cutting effect.

1.2 Solution

Adjust the power supply parameters: According to the thickness and type of the material, reasonably adjust the current, voltage and other parameters to ensure stable power output. You can make preliminary adjustments by referring to the recommended settings in the cutting machine manual, and fine-tune according to the effect in actual cutting.

Optimize cutting speed: The choice of cutting speed should be determined according to the material type and thickness. For medium and thick metal plates, choosing a suitable cutting speed can not only improve the cutting quality, but also extend the service life of the equipment.

Replace the nozzle regularly: Check the wear of the nozzle regularly. Once the nozzle is found to be too worn, it needs to be replaced in time to ensure the stability and high quality of cutting.

Check the gas flow: Check the gas supply system of the plasma cutting machine regularly to ensure that the gas flow is stable and meets the cutting requirements.

2. How to prevent bending and deformation during the cutting process of CNC plasma cutting machine?

2.1 Cause Analysis

During the cutting process, especially when cutting medium and thick metal plates, bending and deformation of the plate is a common problem. The main reasons for this problem are:

The heat-affected zone is too large: The high temperature during the cutting process of the plasma cutting machine causes excessive heat in the local area of the plate, resulting in uneven thermal expansion, resulting in bending deformation.

Uneven plate support: If the plate support is insufficient or uneven, the heat generated during cutting will cause local deformation of the plate, resulting in reduced cutting accuracy.

Improper cutting sequence: An unreasonable cutting sequence may cause stress concentration in certain parts during cutting, thereby causing deformation of the plate.

2.2 Solution

Control heat input: By optimizing the cutting parameters, reduce excessive heat input and avoid deformation of the material caused by excessive heating. Heat input control can be achieved by adjusting the current size and cutting speed.

Evenly support the plate: Ensure that the plate is evenly supported, avoid insufficient local support, and reduce deformation of the plate during cutting.

Reasonable arrangement of cutting sequence: According to the shape and thickness of the cutting parts, the cutting sequence of the CNC metal plasma cutting machine should be reasonably arranged to avoid local stress concentration. It is generally recommended to start cutting from the center or edge of the plate and gradually expand outward.

3. How to improve production efficiency when the cutting efficiency of CNC metal plasma cutting machine is low?

3.1 Cause Analysis

The low cutting efficiency of CNC plasma cutting machine will directly affect the production cycle and cost. Common reasons include:

Inadequate equipment maintenance: The plasma cutting machine has not been maintained for a long time, resulting in frequent failures and reduced cutting efficiency.Insufficient operator skills: The operator's understanding of plasma equipment is insufficient and the cutting parameters are not fully optimized, resulting in low cutting efficiency.

Material waste: Unreasonable cutting layout or improper cutting parameter settings can easily lead to material waste, thereby affecting overall efficiency.

3.2 Solution

Regular equipment maintenance: Develop an equipment maintenance plan and regularly check the various components of the plasma cutting machine, especially the power supply, nozzle and gas supply system. Maintain the efficient operation of the equipment by timely repairing and replacing worn parts.

Strengthen personnel training: Regularly train operators to improve their skills in using CNC plasma cutting machines and help them master the skills of optimizing cutting parameters.

Optimize layout design: Through reasonable layout design, minimize material waste and improve cutting efficiency. At the same time, use the automation function of the CNC cutting machine to reduce manual operation and improve production efficiency.

Although CNC plasma cutting machines have high cutting accuracy and efficiency when cutting medium and thick metal plates, they still encounter a series of problems in actual applications, which is very normal. Users can effectively improve cutting quality, reduce deformation problems, and improve cutting efficiency and machine life by reasonably adjusting cutting parameters, regularly maintaining equipment, optimizing operating procedures, and training operators. Only by continuously optimizing the production process can we maintain our advantages in the fierce market competition. Therefore, CNC equipment that can improve production efficiency occupies an increasingly important position in the industry. If you need a CNC equipment, please consult UTECH. We provide various CNC equipment such as CNC plasma cutting machines, woodworking engraving machines, laser cutting machines, etc., and we support customized services. Our products have been sold all over the world and have been widely praised!