The benefits of using Laser Welding over other more conventional means such as Tig, Mig, and Electron Beam are as follows:

• 1. No pre-heating of the part is required
• 2. Heat distortion is virtually zero; large areas can be built up without any concern of the part moving. The ability to weld without distortion saves time, and money spent on attempting to recover the part that has distorted; therefore, no extra machining cost or even the chance of having to scrap the part are involved.
• 3. The heat-affected zone is very small, which means the part being welded would not rise above 30°C and the structure of the base material remains the same. This allows any hardening treatment done to the part prior to welding to remain the same.
• 4. Parts can be welded either before or after hardening, with the hardness value of the material being matched or coated with a harder-wearing coating.
• 5. Very old and corroded parts can be welded; many historic parts that would normally be beyond normal Tig welding due to the porosity and corrosion can be brought back to life with laser welding.
• 6. Areas can be accessed that need welding which would be impossible with Tig.
• 7. A wide range of materials can be welded, both ferrous and non-ferrous, such as
  • Aluminium
  • Brass
  • Bronzes
  • Carbon Steels
  • Cast Iron
  • Copper
  • Inconnel
  • Magnesium
  • Stainless Steels
  • Titanium  ……. to name but a few.

There is so much we can do with Laser Welding; it really is the repair of the future. 

Whether you’re rebuilding a muscle car from a scattered collection of old parts or you’re restoring an antique car that has all of its original parts but has been sitting and collecting dust for decades, it’s important to keep the spirit of the car in mind. When car restoration is your business, it’s just as important to make restoration choices that appeal to audiences and potential buyers. That’s why using auto restoration laser welding by PhotonWeld-Lite-Pro-S-BW Laser welding machine is all about preserving, protecting, and keeping it original.

The most important rule of restoring antique and exotic cars is to keep as much of the original as you can. Finding a car with all the original parts, and in pristine condition is nearly impossible. Even if you track one down, it will carry a hefty price tag. But if you’re in the market for restoring old cars, you don’t want well-preserved models in factory condition. You want the ones that can only be saved by an expert. Lasermach with it's PhotonWeld Laser Welding Machine for Car bodywork  can help you to keep everything in the correct dimensions without deformation or  weakening heat-affected zones from electrical Welding.

· Precision: Laser welders can achieve accuracy down to fractions of a millimeter, making them ideal for intricate or delicate repairs.

· Versatility: They can work with a wide range of materials, including steel, aluminum, and even dissimilar metals.

· Minimal Heat Distortion: The concentrated beam generates less heat, reducing the risk of warping or damaging surrounding areas.

· Efficiency: Repairs are completed faster, with fewer secondary processes required.

· Durability: Laser welds are strong and resistant to wear, ensuring long-lasting repairs.

Vehicles can only be repaired correctly if the right choice is made from the variety of new joining techniques for the modern materials and low sheet thicknesses that have been used in recent times to manufacture new vehicles.

Looking at the two main areas of bodywork repair, structural parts and outer skin, the welding machine being used needs to offer both MIG/MAG welding processes and MIG brazing, and must be capable of joining panels with a thickness range of 0.4mm to 4.0 mm. This dictates the use of a welding machine which fully meets these tasks for all areas, without time-consuming setup procedures. You can find this in our PhotonWeld-Lite-Pro-S40/S50 portable Laser Welding Machine.

Aluminum Welding

• Aluminum welding of outer skin parts - roof joint
• Aluminum welding of outer skin parts – tailgates

Brazing Steel

• Tight seams with smooth surface
• No or minimal rework
• Painting directly after joining
• No plastic cover necessary

Patch Panel Welding

Replacing rusted or damaged sections of quarter panels, rocker panels, and floor pans is core auto body work. Fiber laser welders excel here because they can produce narrow, low-distortion butt joints on 18-22 gauge steel without burning through. The result is a weld that sits nearly flush with the surrounding panel, reducing filler and finishing time significantly. Shops report cutting patch panel weld-and-finish time by 40-60% after switching from MIG.

Rust Repair and Metal Replacement

Rust repair on classic cars, trucks, and daily drivers demands precision. The surrounding metal is often thin, weakened, or irregular. A fiber laser welder’s adjustable power settings let the operator dial down energy for fragile areas and scale up for thicker sections, all without changing equipment or consumables. Wire feed capability on models adds filler material on the fly to bridge gaps where corroded metal was removed.

Classic Car Restoration

Restoration shops working on high-value vehicles cannot afford visible heat marks, warped panels, or heavy grind lines. Fiber laser welding produces an aesthetic bead that preserves panel geometry. For concours-level restorations where panel gaps, body lines, and surface finish are judged critically, a clean weld that needs minimal finishing is a competitive advantage. Operators can weld thin stainless trim, chrome-moly tubing, and mild steel body panels with one machine.

Frame and Structural Reinforcement

While structural collision repair still follows OEM-specified procedures (often requiring squeeze-type resistance spot welders for specific joints WHICH CAN BE DONE NOW ALSO BY LASER WELDER - See our model O ) , fiber laser welders are increasingly used for structural reinforcements, subframe gusseting, and bracket fabrication. The deep penetration and consistent fusion of a fiber laser weld provide strength equivalent to or exceeding TIG on the same joint, at a fraction of the time.

Exhaust and Custom Fabrication

Auto body shops that offer exhaust work, roll cage fabrication, or custom metalwork alongside collision repair benefit from the fiber laser’s versatility. Welding stainless steel exhaust tubing, mild steel brackets, and aluminum heat shields all happens with the same machine. No gas changes, no wire spool swaps, no process switch between materials.

• 60-80% reduction in post-weld grinding time on patch panel and sheetmetal work

• Zero burn-through incidents on 0,8 mm and thinner panels (compared to regular occurrences with MIG)

• Faster cycle times that allow shops to process more repair orders per week

• Cleaner weld aesthetics that reduce filler, primer, and paint consumption

• Operator preference once trained, technicians prefer the fiber laser for precision work and resist going back to MIG for thin-gauge applications

• Much more ecologic: Drastic less energy consumption (till minus 75%)

• Cleaner enviroment: drastic reduction of fume and smoke

The consistent theme is that fiber laser welding does not just match existing processes; 

it eliminates downstream steps that have been accepted as necessary for decades.

Fiber laser welders are Class 4 laser devices and require proper safety protocols. For auto body shops, the key requirements include:

• Laser safety glasses rated for the specific wavelength (typically 1064nm for fiber lasers) with an appropriate optical density ( minimal (LB) OD 6+)
• Enclosed or controlled welding areas to prevent accidental laser exposure to other shop personnel
• Fume extraction for welding coated metals (galvanized, primed, or painted panels must be stripped before welding)
• Training for all operators on laser safety protocols and emergency procedures
• Operator training based on practical welding course

Lasermach provides safety equipment and guidelines with every machine purchase, including operator training resources to ensure your shop meets compliance requirements from day one.