Sichuan Strion Laser Technology Co., Ltd. recently completed a successful welding solution for a customer facing the challenge of joining ultra-thin 0.3mm stainless steel sheets. The project highlights STRION LASER’s advanced handheld laser welding system and technical expertise in addressing precision welding applications.
Client Requirements
Material: 0.3mm stainless steel (SS)
Welding Goal: Strong, non-perforated welds with minimal deformation
Equipment: STR-HW200 Handheld Laser Welder + STR-WF00B Wire Feeder
Process: 1.Pulse welding (no filler wire) 2.Filler wire welding
Challenges Encountered
Thin sheet welding presents a narrow process window. The client reported:
Excessive power caused burn-through
Extended heat input during pull welding led to base material deformation
Insufficient power resulted in weak bonding
Additionally, initial system setup revealed a laser no-fire issue, traced to low detected gas pressure.
Troubleshooting and Resolution
Upon inspection:
Gas cylinder was fully open
Electromagnetic valve functioned normally via mobile app diagnostics
Root Cause:
The gas pressure sensor, which converts pressure into voltage, showed 510mV, lower than the software threshold of 650mV, preventing laser emission.
Solution Implemented:
Replaced the pressure gauge
Adjusted software pressure threshold (via internal technician interface)
Optimized Welding Parameters (Filler Wire Mode)
Wire Feed Speed: 50 cm/min
Laser Power: 30%
Frequency: 50 Hz
Weld Width: 1.8 mm
Welding Results
High Straightness and Accuracy: Welds maintained uniform alignment with minimal deviation, reflecting precise control.
Smooth, Continuous Surface: No burn-through or slag accumulation; stable heat input.
Narrow Heat-Affected Zone (HAZ): Even distribution and natural color transition minimize distortion risk.
Defect-Free: No signs of porosity, cracks, or fusion issues, indicating strong weld integrity.
Industrial Aesthetic: While not mirror-like, the welds are consistent and visually clean.
This welding solution for 0.3mm ultra-thin stainless steel sheets not only perfectly meets the customer’s strict requirements for weld strength, no burn-through, and low deformation, but also fully demonstrates STRION LASER‘s excellent technical strength in the field of precision welding. Among them, the coordinated cooperation between the STR-HW200 Handheld Laser Welder and the STR-WF00B Wire Feeder, with optimized parameter settings and stable performance, successfully overcame the technical difficulties in welding ultra-thin sheets, providing a reliable practical model for similar high-precision welding needs.
