Fiber laser cutting technology is widely used in modern manufacturing, especially when processing highly reflective materials, and can provide high-precision and efficient cutting solutions. However, due to the particularity of highly reflective materials, special attention must be paid to safety and operating skills when cutting with a fiber laser cutting machine. This article will detail the key points you should pay attention to when cutting highly reflective materials.

Highly reflective materials have the property of strongly reflecting when exposed to light. Metal materials: such as aluminum, copper, steel, etc., their surfaces usually have good reflective properties and will strongly reflect laser light.

Precautions when cutting highly reflective materials

Safety precautions

Safety is the primary consideration when operating a fiber laser cutting machine:

Wear personal protective equipment: including safety glasses, protective clothing and gloves to protect eyes and skin from possible damage from laser radiation and reflections from materials.

Work area safety: Ensure the work area is clean and barrier-free, and mark laser radiation and high temperature areas to prevent others from inadvertently entering the work area.

Reflection management

Highly reflective materials easily reflect laser light and may cause damage to equipment and operators:

Laser focus control: Ensure that the laser focus is accurate and concentrated on the cutting area to avoid laser reflection in unnecessary places.

Angle and Position Adjustment: Adjust the incident angle and focus position of the laser to minimize reflections back to the cutting machine or operator.

Laser parameter optimization

Depending on the material type and thickness, adjust the following laser parameters to ensure high-quality cutting results:

Power and speed: Highly reflective materials may require higher laser power and slower cutting speeds to ensure cut quality and avoid material deformation.

Focusing distance: Make sure the focusing distance is suitable for the material thickness to ensure that the laser can effectively penetrate the material and complete the cutting task.

Use appropriate assist gas

Use the appropriate type and flow of assist gas during cutting:

Nitrogen or Oxygen: Auxiliary gases help cool the cutting area and remove molten material, reducing reflections and the formation of heat-affected zones.

Tool design and material holding

Make sure you choose the right tool design and effective material holding methods:

Knife Selection: Use properly designed knives to reduce residue and reflections after cutting.

Secure clamping: Make sure the material is clamped securely to prevent movement or vibration during the cutting process, which could affect the cut quality.