Why Laser Nozzles Are So Important for Laser Cutting?

Laser cutting nozzles are sometimes ignored yet crucial components that can have a major impact on the operation of your fiber laser cutting machine. In this product detail, we’ll look briefly at the complexity of laser cutting nozzles to help you make an informed decision for the best cutting results.

Types of Laser Cutting Nozzles

Laser cutting nozzles are classified into two types: single-layer and double-layer.

• Single-Layer Nozzles: These are great for precision cutting, particularly with materials such as stainless steel, aluminum, or copper. They excel in applications that need high precision and surface quality.
• Double-Layer Nozzles: Double-layer nozzles are designed for high-speed cutting and often employ oxygen as an aid gas while cutting iron sheets and other comparable materials. Their increased gas flow rates allow for faster cutting speeds.

Quality counts: choice of laser cutting nozzle

The whole lifetime and performance of your equipment depend much on the quality of your laser cutting nozzle. Choosing credible producers guarantees a great degree of technical excellence, efficiency, and integration. Our specialty at PENDSTAR Laser is providing excellent laser products and components that will provide dependability and stability for your cutting needs.

Selecting the Correct Nozzle Aperturesize

The material thickness you are working with will determine the aperture size in the nozzle of your fiber laser cutting equipment. Gas flow rates and, hence, the removal of molten material, directly depend on this aperture size.

• A 1.0mm aperture diameter nozzle gives stability for materials under 3.0mm thick.
• A 1.5mm aperture diameter nozzle guarantees consistent cutting while handling thicker materials (over 3.0mm).
• Materials higher than 10.0mm in thickness usually ask for 2.0mm or more in width of nozzels. Larger apertures, however, provide the focusing lens less protection.

Effective laser cutting, better product processing, and higher production efficiency all depend on the suitable aperture size.

The Effect of Nozzles for Laser Cutting on Cutting Performance

Laser cutting nozzles control high-pressure airflow direction and pressure, maintain pressure between the workpiece and the nozzle, and stop spatter from reaching the laser head, therefore influencing cutting performance. They guarantee system stability by additionally sending capacitive signals for height adjustment.

Essential Needs for Choice of Laser Nozzle

• Material: Copper and brass are common nozzle materials. High-quality T2 copper has good conductivity, sensitivity, and thermal efficiency, resulting in dependable capacitive signals and longevity.
• High Precision: Nozzles should have a concentricity of 0.03mm for 1.0mm or smaller diameters, and 0.02mm for smaller nozzles. Superior concentricity decreases the requirement for early adjustments while minimizing laser head damage.
• Smooth Surfaces: Nozzles should have a roughness of up to 0.8 on both the inner and exterior surfaces. A polished outside surface reduces material adhesion during cutting, extending nozzle life, but a polished inner surface avoids vortex formation, which improves cutting quality and efficiency.
• Strict Anti-Oxidation Treatment: When exposed to air, copper components oxidize, causing discolouration. High-gloss processing of nozzle surfaces enhances their sensitivity to oxidation, resulting in darkening or yellowing.

By taking these aspects into account, you can confidently choose the best laser cutting nozzle for your fiber laser cutting machine, assuring great cutting performance and longevity. Regular nozzle inspection and maintenance are critical to preserving cutting quality.

With the right nozzle, you can maximize the performance of your fiber laser cutting machine!