Laser welding machines have transformed the field of metal joining, providing precise and efficient solutions up to four times faster than traditional TIG/MIG methods. They operate using a concentrated beam of light (fiber optics) that melts the material with minimal thermal distortion. At Bescutter, we offer everything from portable equipment for field work to robotic cells for industrial automation.
Operation and Technology of Fiber Optics
The process is based on generating a high-energy-density beam. Unlike conventional arc welding, the laser concentrates the heat into a micrometric point.
Basic principles of the process
Laser welding involves the absorption of the laser beam by the materials, generating a deep "keyhole" or conductive fusion. This creates a clean, penetrating weld bead that, in most cases, does not require subsequent polishing.
Key components of the Bestutter team
- Laser Source (Fiber): The heart of the system. We use high energy efficiency sources that do not require constant maintenance.
- Wobble Head: The oscillating gun or optic allows you to adjust the bead width (sweep) to fill gaps in materials with a poor fit.
- Industrial Chiller: Water cooling systems that guarantee the thermal stability of the source and the head for 24/7 operations.
- Wire Feeder: Automatic synchronized system for supplying material in joints that require structural filling.
Types of Laser Equipment and Their Applications
Choosing between a manual or automatic system depends on your production volume. We classify our technology as follows:
1. Handheld and Portable Laser Welders (See Models)
The evolution of the traditional welder. These compact machines allow laser technology to be taken to any part of the workshop or to on-site jobs.
- Versatility: Ideal for repairs, small batches, and parts with complex geometries where a robot would have difficulty accessing.
- Ease of use: An operator can learn to laser weld in hours, unlike the years required to master TIG welding.
- Applications: Metal cabinets, signs, mold repairs and light sheet metal work.
2. Automation: Robots and Cobots (See Solutions)
For Industry 4.0, we integrate the laser source with intelligent motion systems for maximum repeatability.
- Industrial Robots (6 Axes): High-speed arms designed for mass production (Automotive, Appliances). They guarantee that cord #1 and cord #1,000,000 are identical.
- Cobots (Collaborative): The flexible solution. Safe robots that work side-by-side with the operator without safety cages. They are easily programmed by moving the arm by hand (Teach-in), perfect for "High Mix - Low Volume" workshops.
- Welding Cells: Enclosed booths that protect personnel from radiation and automatically extract fumes.
Competitive advantages of laser welding
Adopting this technology offers an accelerated ROI compared to conventional welding:
Aesthetic and Structural Quality
Precise heat control produces smooth, uniform welds. The Heat Affected Zone (HAZ) is minimal, preventing the thin sheet from warping or buckling, thus eliminating costly straightening and polishing processes.
Production Speed
Laser welding can be 2 to 10 times faster than TIG welding, and up to 4 times faster than MIG, depending on the thickness and material.
Material Versatility
Ability to join dissimilar metals (e.g., copper with aluminum) and reflective materials that are difficult to arc weld, as well as stainless steel, carbon steel, and galvanized steel.
Control and Operating Parameters
Our equipment features intuitive touchscreen controllers that allow you to save welding "recipes".
- Power and Frequency: Fine adjustment for deep penetration or aesthetic surface welding.
- Wobble Mode: Setting oscillation patterns (circle, line, triangle) to suit the type of joint (butt, fillet, lap).
- Wire feeding: Synchronized control of speed and retraction of the feed material.
Industrial Sectors Benefited
- Automotive: Body-in-white welding, EV batteries and chassis components.
- Aerospace: Lightweight aluminum and titanium alloy joints with minimal distortion.
- Appliances and Furniture: Invisible stainless steel finishes for kitchens and designer furniture.
- Electronics: Soldering of copper casings and conductive components.
Maintenance and Useful Life
Unlike MIG torches that require constant changes of tips and nozzles, lasers are low maintenance:
- Protective Lens: This is the only critical consumable. It must be checked and cleaned daily to protect the internal optics.
- Coolant: Maintaining the level and quality of water in the chiller ensures that the laser source lasts for more than 100,000 hours.
- Cleaning: Keeping the gun or head free of splashes ensures optimal power transmission.