Laser Processing: Principle and Advantage

Laser processing has revolutionized modern manufacturing by offering precision, flexibility, and efficiency in material treatment. This article explores the fundamental principles behind laser processing, its core advantages, and recommended diode laser modules from Aimlaser that support different industrial applications.

Laser processing refers to the use of a laser beam projected on the surface of the thermal effect of the material to complete the processing process, including laser welding, laser cutting, surface modification, laser marking, laser drilling and micro machining. Laser can adapt to all materials processing and manufacturing, especially in some special precision requirements, special occasions and special materials processing and manufacturing have an irreplaceable role.

1. The principle of laser processing

Laser processing is to irradiate the laser beam to the surface of the workpiece, with the high energy of the laser to cut, melt the material and change the surface properties of the object. Because laser processing is non-contact processing, tools will not directly friction with the surface of the workpiece resistance, so the speed of laser processing is very fast, processing objects are affected by the heat of the small range and will not produce noise. Because the energy of the laser beam and the speed of the beam can be adjusted, laser processing can be applied to different levels and a wider range.

2. Laser processing advantages

The precious characteristics of laser determine its advantages in the field of processing:

(1) Laser processing is mostly contactless processing, and the adjustable energy and moving speed of the laser beam, so that the laser can achieve a variety of processing purposes.

(2) Laser processing can be for a variety of metal, non-metal processing, especially can process high hardness, high brittleness, and high melting point of materials. It is suitable for precision micro machining and large material processing.

(3) In the laser processing process, the laser head does not contact with the workpiece, there is no machining tool wear problem, the workpiece is not stressed, not easy to pollution.

(4) In the laser processing process, the laser beam energy density is high, and it has no effect or minimal effect on the non-laser irradiated parts. Therefore, its heat affected zone is small, the workpiece thermal deformation is small.

(5)The laser beam is easy to guide, easy to control, combined with precision machinery, precision measurement technology and electronic computer, to achieve a high degree of automation and high processing accuracy; so as to realize the processing of complex workpieces, its processing mode is very flexible.

(6) Laser processing can not only process the workpiece in the closed container but also realize the robot laser processing.

(7) Laser processing has high production efficiency, reliable quality, good economic benefits.

3. Recommended Laser Modules from AIMING LASERS

AIMING LASERS offers a wide range of high-performance laser modules that are widely used in laser processing applications such as cutting, welding, marking, and precision alignment. Based on different processing needs, the following laser modules are particularly recommended: 

1. Green Laser Modules 

   Green laser modules operate at a wavelength typically around 520–532nm, offering high visibility and beam quality. They are ideal for high-precision alignment, laser marking, and fine cutting applications due to their excellent optical contrast and stability. AIMING LASERS' green diode laser deliver sharp, consistent beams and are widely used in PCB marking, micro-patterning, and fine engraving.

2. Red Laser Modules

   Red laser modules (635–650nm) are reliable and cost-effective solutions for positioning and alignment tasks in laser processing environments. They are suitable for marking and cutting where high visibility is not a primary concern. These modules provide excellent stability for low-power cutting, guide beam systems, and machine vision tasks.

3. Infrared Laser Modules

   With wavelengths such as 808nm, 850nm, or 980nm, the infrared laser module is particularly suited for thermal processing, laser welding, and materials requiring deep penetration. AIMING LASERS’ infrared modules are used in plastics processing, deep engraving, and invisible laser marking systems.

4. Fiber Coupled Laser Modules

   Designed for precision and flexibility, fiber coupled laser diode modules are perfect for robotic laser systems, confined-space processing, and integrated manufacturing cells. These modules allow for efficient beam delivery in automation systems, with customizable fiber core diameters and connectors.

5. Uniform Line Laser Modules

   These modules generate laser lines with high intensity uniformity, ideal for surface inspection, laser triangulation, and guiding in machining processes. AIMING LASERS’ Powell lens-based uniform line laser modules ensure consistent line thickness and brightness for high-accuracy projection.

6. Laser Line Generators

   This category includes single-line, cross-line, and 360° line modules, used for projecting reference lines on complex surfaces during positioning and cutting. Whether it’s for pattern generation or complex layout alignment, AIMING LASERS provides robust laser line generators tailored for industrial needs.

   
   

Aiming Laser Technology Co., Ltd. produces green dot lasers, red line lasers, infrared laser modules, powell lens uniform line laser generators, coaxial fiber coupled laser modules and laser line generators. These have a variety of uses in industrial production, favored by customers at home and abroad, we can customize your required wavelength, output power, line width, fan angle, working voaltage and housing dimensions, etc.