How a German Auto Supplier Cut Rework by 32% with Raytu Laser Welding Machines

 Back in 2023, a Fortune 500 automotive supplier based in Stuttgart, Germany faced a growing challenge. Their traditional TIG welding lines couldn’t keep up with the precision demands of turbocharger housing fabrication. The average weld pass rate hovered around 87%, largely due to thermal distortion and insufficient penetration—especially on high-nickel alloys.

Turning Point

They introduced a Raytu FWS-Series 1500W fiber laser welder, featuring keyhole welding mode with a deep-to-width ratio of 6:1 and 25kHz waveform modulation. The result? Clean, spatter-free welds with penetration control accurate to ±0.05mm.

Results at a Glance

  • Rework rate dropped from 13% to 8.8%

  • Welding cycle time per unit reduced by ~21%

  • Post-weld X-ray pass rate reached 97.3%

As lead process engineer Matthias K. put it:

"We used to pray the weld didn’t crack after cooling. Now we can CT-scan the joints with full confidence."

👉 See the welding solution they used – FWS-Series by Raytu

Following the successful pilot, the company purchased three more machines and plans to implement Raytu’s system in its Brazil facility next quarter.

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