Case Study

Auto parts welding

Laser welding in automotive exhaust systems, body sheet metal, and new energy battery trays.

Background

The automotive industry demands extremely high weld strength and flawless appearance. Traditional TIG welding on thin sheet metal suffers from large heat input, workpiece deformation, and low efficiency — leading to high rejection rates and costly rework.

Solution Specs

ItemDetails
Machine ModelZhijie MJ-15-BFL handheld laser welder
Laser Source1500W Keplin / Guangfang / Raycus fiber laser
Wire FeederStandard auto wire feeder
Shielding GasArgon Ar
Welding MaterialGalvanized steel 1.0 – 1.5mm
Welding TypeContinuous lap weld on exhaust pipe flanges

Key Results

MetricBefore (TIG)After (Laser)Improvement
Weld Width~ 3.5 mm≤ 1.2 mm2.9x narrower
Welding Speed~ 10 mm/s≥ 30 mm/s3x faster
Rework Rate~ 8%~ 0.5%16x lower
Post-weld PolishingRequiredEliminated100% labor saved
Heat Affected ZoneLargeVery smallNo workpiece deformation

Customer Testimonial

“We replaced three TIG welding stations with one Zhijie 1500W laser welder. Output per shift nearly tripled. The laser welds are so clean we completely removed the polishing step. ROI was under 6 months.”

— Production Manager, Chinese auto parts supplier

  • 1500W Handheld Laser Welder — ideal for 0.5–3mm sheet metal automotive work
  • 2000W Handheld Laser Welder — for thicker components like chassis brackets and battery trays

Need to weld automotive parts? Contact us for a free test weld →