切断精度に影響を与える要因は数多くあります。 レーザーパイプ切断機具体的には、主に以下のような理由が挙げられます。

1.レーザービームの形状

レーザーからのビームは先細りなので、切り取られたスリットも先細りになります。この場合、0.6MMのステンレス鋼の切断厚さは3MMのスリットよりも小さくなります。したがって、レーザー光速度の形状は、金属パイプレーザーパイプ切断機の切断精度に影響を与える主要な要因になります。この円錐形のレーザー光速度条件では、ワークピースの厚さが厚くなるほど、精度は低くなります。

2.レーザービームのスポットサイズ

スポットサイズも、パイプレーザー切断機の切断精度に影響を与える要因の1つです。円錐形のレーザーが焦点を合わせると、スポットはどんどん小さくなり、レーザー切断精度が高くなります。最小スポットは最大0.01mmで、小さな切断ギャップを切り取ることができ、加工精度を確保できます。

3.パイプの材質の違い

Different materials pipe laser cutting machine cutting accuracy is also less different, even the same material, if the composition of the material is different, the cutting accuracy will also be different. Therefore, the workpiece material on the pipe laser cutting accuracy also has a certain impact. For example, under the same circumstances, stainless steel has higher cutting accuracy and smoother cutting surface than aluminum.

Generally speaking, different pipes to be cut have different physical and chemical properties.

In terms of physical properties, the pipes to be cut vary in terms of hardness, melting and boiling points, and whether they are easy to melt. In terms of chemical properties, such as the flammability, stability, oxidation, and combustion-supporting properties of the pipes to be cut, there are also great differences. This makes the different pipes to be cut different in terms of the size of the chuck, the type and pressure of the auxiliary gas. And the requirements such as laser cutting power are different.

Under normal circumstances, the greater the thickness of the pipe to be cut, the higher the laser cutting power required. When cutting pipes of special materials such as aluminum pipes, copper pipes, stainless steel pipes, and even pipes made of materials with excellent oxidation resistance, as well as pipes of special shapes such as special-shaped pipes, H-shaped steel, channel steel, and angle steel, the laser The cutting power, the choice of auxiliary gas type, and the performance of the chuck itself also have different requirements. When cutting and processing lengthened and weighted pipe fittings, in addition to considering laser power and auxiliary gas, the selection of supporting components must also be considered to ensure the accuracy of the entire cutting process.

4.ワークの厚さ

ワークピースの厚さが厚くなるほど、精度は低下し、スリットは大きくなります。レーザービームは円錐形なので、切断スリットも円錐形になります。たとえば、厚さ 0.3mm の材料の切断ギャップは、厚さ 2mm の材料の切断ギャップよりもはるかに小さくなります。

5.切断システムの選択

For hardware to fully play its role, suitable software assistance is needed, such as an excellent pipe cutting system. The more popular pipe cutting systems on the market now include cutting systems independently developed by FS, Siemens, Beckhoff or companies. Different systems support different cutting methods, pipe shapes, and number of chucks. For example, FSCUT’s system supports offset tube center error in production to improve through holes cutting precision. Excellent tube cutting software is one of the necessary factors to achieve high precision.

6.補助ガスの選択

When the laser cutting machine is working, the light spot formed by focusing the laser beam through the lens is irradiated on the surface of the material to be cut, causing the temperature to rise in a very short time, thereby reaching the melting point or boiling point of the material to be cut. During the cutting process, the surface of the material to be cut can reflect the laser to a certain extent. During cutting, auxiliary gas can be blown to increase the absorption of the laser by the surface of the material to be cut and improve cutting efficiency. Auxiliary gases generally use oxygen, nitrogen, compressed air and other inert gases.

Oxygen is commonly used as an auxiliary gas because oxygen promotes the oxidation reaction on the surface of the pipe being cut, thereby improving cutting efficiency. When the laser cutting power and cutting speed are constant, the greater the oxygen pressure, the larger the cutting seam, and the cutting section stripes will be thicker and larger; when the oxygen pressure is reduced, the cutting seam becomes thinner, and the cutting section stripes are thin and smooth, but when When the pressure drops to a certain value, the cutting effect on one side of the pipe will be significant, but at the same time, slag will appear. The slag falling to the opposite side will affect the entire cutting accuracy, and sometimes it will even be difficult to cut off the cut pipe.

When cutting high-thickness pipes, special-shaped pipes or pipes of special materials, nitrogen and other inert gases need to be used as auxiliary gases. Combined with the metal and physical properties of the pipe being cut, compressed air can be selected as the auxiliary gas in order to control costs without affecting the overall cutting efficiency.

7.まとめ

一般的に、パイプ切断精度に影響を与える要因は複雑です。したがって、購入者は信頼できる品質と成熟した経験を持つレーザーパイプ切断機メーカーを選択し、調達プロセス中に積極的にニーズを表明し、詳細な情報を提供する必要があります。優れたハードウェア機器を選択することによってのみ、切断精度の安定性を確保できます。