Laser industry knowledge Q&A

When metal is exposed to moisture and oxygen, rust forms quickly. Rust is not just an eyesore—it weakens structural integrity, reduces electrical conductivity, and undermines subsequent welding, coating, and bonding quality. For decades, rust removal relied on sandblasting, acid pickling, and manual grinding—but sandblasting throws off clouds of dust, acid pickling produces heavy-metal wastewater and can cause hydrogen embrittlement, and manual grinding is painfully slow. Today, laser rust removal is emerging as the revolutionary method of choice across shipbuilding, bridges, automotive, and heritage conservation, thanks to its non-contact, eco-friendly, and high-precision nature.

Paint that has bonded to a surface for years often needs complete removal—whether for repainting ships and aircraft, heritage restoration, or graffiti cleanup. Traditional methods like sandblasting and chemical stripping get the job done, but often at the cost of substrate damage, chemical pollution, and heavy waste. Today, laser cleaning is emerging as the go-to solution for paint removal across industry and conservation, thanks to its non-contact, high-precision, and eco-friendly nature.

Laser cleaning technology refers to a process that uses high-energy laser beams to irradiate the surface of a workpiece, causing contaminants, rust, or coatings to evaporate or peel off instantly, thereby achieving cleanliness. The core lies in selective absorption of materials and instantaneous conversion of energy

Laser cleaning technology refers to a process that uses high-energy laser beams to irradiate the surface of a workpiece, causing contaminants, rust, or coatings to evaporate or peel off instantly, thereby efficiently removing surface attachments or coatings. Laser cleaning machines are devices built on this principle — they emit a high-power laser beam that vaporizes or gasifies contaminants, achieving non-contact cleaning "with light as a broom"

Surface cleaning technologies are indispensable across a wide spectrum of industries, from precision aerospace component processing and nuclear facility decontamination to the routine maintenance of bakery molds and the preservation of precious artworks. Despite the diversity of materials and processes involved, these applications share a universal core requirement: to thoroughly remove surface contaminants without damaging or altering the underlying material. Laser technology offers a unique solution to this challenge. It can selectively remove specific material layers with minimal impact on the surface below. Furthermore, laser cleaning is often faster and more environmentally friendly than other methods, leading to its increasing adoption across numerous applications and industries.

Laser welding, as a high-precision and high-efficiency modern joining technology, is increasingly widely used in manufacturing due to its high energy density, small heat-affected zone, and controllable deformation. This article systematically reviews the 8 major categories of materials that can be laser welded, analyzing their welding characteristics, process challenges, and practical countermeasures to provide a reference for material selection and equipment selection.

In the modern metal processing field, handheld laser welding technology is rapidly replacing traditional welding methods with its remarkable advantages of high efficiency, flexibility, and superior quality. This article will comprehensively explain this revolutionary technology around 12 core questions, with a professional perspective from ARGUS LASER.

In the field of industrial manufacturing, the 1200W handheld air-cooled laser welding machine is demonstrating broad application prospects due to its excellent performance and portability. This advanced equipment, integrating high power with an intelligent air-cooling system and led by brands like ARGUS Laser, acts like a skilled "metal tailor," precisely joining various metal materials and injecting innovative momentum into modern manufacturing.

"I didn't change any parameters, so why are the burrs getting worse?" This is one of the most frustrating "ghost malfunctions" in laser cutting workshops. The common first response is to increase power or decrease speed, but this often fails to address the root cause. Parameters displayed on the screen haven't changed, but the physical state of the equipment has. Laser cutting is a synergy of light, gas, material, and motion. A slow drift in any single component can render a previously perfect process setting ineffective.

To ensure stable laser output, the laser generator is usually fixed. To meet different processing needs, the laser beam’s transmission path is dynamically changed using optical elements like reflectors. This design, where the source is fixed but the reflectors and focusing lens move while maintaining stable output power, is called the “Flying Optics Path”.

In sheet metal fabrication, a common observation is that of two holes cut on the same plate, one can perfectly accommodate a flat head (countersunk) screw, allowing the screw head to sit flush with the material surface, while the other cannot, leaving the screw head protruding. The key to this issue lies in the "hole forming process" settings, especially for non-through holes requiring a countersunk effect. Here is a summary of the key technical points for achieving counterbores in laser cutting

This article explores the mathematical physics of thermal diffusion length (Lth = √4αt ), illustrating how transitioning from nanosecond to picosecond and femtosecond laser pulses compresses energy deposition time to virtually eliminate the Heat-Affected Zone (HAZ), recast layers, and micro-cracks in high-precision manufacturing.

This article explains the inverse coupling between ultrafast laser repetition frequency and single-pulse energy (Ep = Pavg / f), analyzing how frequency adjustments impact material removal rates (MRR), plasma shielding, and thermal accumulation to help engineers identify the optimal process window for high-efficiency, thermal-damage-free micro-fabrication.