Laser Nozzle Types - Choose the Right Laser Nozzle

Laser nozzle types can be classified in many ways according to different application scenarios, design structures and functional requirements. The following are common classification methods for laser nozzles:

1. Shape

Circular nozzle: The most common type of nozzle, suitable for most laser cutting and welding applications. It can effectively provide uniform airflow.
Conical nozzle: This nozzle is usually used in situations where high airflow speed and focusing are required, which helps to reduce eddy currents during cutting and improve cutting efficiency.

2. Diameter

Standard nozzle: Commonly found in laser cutting machines, the diameter is usually between 0.8mm and 2.0mm, suitable for most cutting applications.
Micro nozzle: Smaller diameter (such as 0.5mm and below), used for high-precision cutting and delicate welding, suitable for thin materials.
Large nozzle: The diameter is greater than 2.0mm, suitable for cutting thicker materials, and can provide more airflow to help discharge slag.

3. Material

Metal nozzle: Such as copper nozzle, due to its good thermal conductivity and high temperature resistance, it is suitable for high-power laser cutting.
Ceramic nozzle: Wear-resistant, suitable for high energy density applications, and has good thermal stability.
Plastic nozzles: mostly used for low-power laser applications, lightweight and low cost, but with poor durability and temperature stability.

4. Application

Cutting nozzles: dedicated to laser cutting processes, designed with emphasis on airflow optimization and focus control.
Welding nozzles: used in laser welding processes, usually designed to improve the protection of the molten pool.
Marking nozzles: used in laser marking and engraving processes, usually designed for low energy density applications.

5. Gas Type

Oxygen nozzles: used for cutting metal materials, specially designed to optimize oxygen flow and improve cutting efficiency.
Nitrogen nozzles: used for cutting materials such as stainless steel and aluminum, can reduce oxidation and improve cutting quality.
Air nozzles: suitable for most non-metallic materials, can effectively prevent scorching, and are often used for cutting materials such as wood and plastic.

6. Design Technology

Traditional nozzles: nozzles with traditional designs and single functions.
High-frequency nozzles: specially designed to achieve higher airflow speeds, suitable for high-efficiency applications.
Adjustable nozzles: allow nozzle parameters, airflow and focus to be adjusted according to different cutting needs to achieve the best cutting effect.

Summary

When selecting a laser nozzle, it is necessary to consider the characteristics of the laser nozzle types to meet specific processing requirements. Selecting the right nozzle according to the material type, cutting thickness, gas used, power and process requirements can significantly improve the quality and efficiency of cutting and welding.