1、Process Introduction | What problems can laser welding solve?
Minimal heat affected zone: laser focusing Ø 0.2-0.6 mm, HAZ ≤ 0.3 mm, thin plate deformation<0.1 mm, no need for subsequent leveling
High aspect ratio: Lock hole effect with a depth to width ratio of 10:1, penetrating 0.1-8 mm at once without the need for multiple layers or channels
High precision trajectory: Six axis robot+real-time weld seam tracking, repeatability accuracy ± 0.05 mm, controllable weld seam width 0.5-1.5 mm
High speed cycle: 2-4 m/min for 1 kW thin plate, 1-1.5 m/min for 3 kW medium thick plate, 3-5 times faster than traditional TIG
Wide material compatibility: Carbon steel, stainless steel, aluminum, copper, titanium, and dissimilar metals (aluminum steel, copper stainless steel) can be formed in one go
2、Capabilities
| Item | Parameter |
|---|---|
| Maximum Single Part Size | 3500 × 1500 × 800 mm (Robot Arm Reach) |
| Welding Thickness | 0.1 mm – 8 mm (Single-sided penetration) |
| Weld Types | Butt, Fillet, Lap, Circumferential, 3D Curved Seam |
| Positioning Accuracy | ±0.05 mm (Robot + Tracking) |
| Surface Quality | Free of pores & undercuts, Ra ≤ 1.6 µm, Ready for brushing/polishing |
| Batch Capacity | 1 – 100,000 pieces/batch, 24-hour continuous operation |
3、Our Equipment
IPG 6 kW fiber laser+FANUC M-20iA
Six axis robot, arm span 1811 mm, repeat ± 0.02 mm
Suitable for 1-6 mm stainless steel/aluminum long straight seams, with a speed of 1.5 m/min
Trumpf 4 kW Disk + KUKA KR30 HA
High dynamic arm, HA version repeat ± 0.02 mm, with weld seam tracking
Special welding of 0.5-4mm reflective materials (copper, aluminum) without splashing
SCANSONIC remote scanning head 3 kW
Focus scanning width 5-58 mm, swing frequency 1 kHz
Aluminum steel dissimilar material for car door rings, with a lap width of 20mm and one-time welding penetration
1500 W swinging handheld laser welding
The spot size is adjustable from 0-5 mm, suitable for prototype welding repair and bulk first article verification
Scenario without fixtures, changeover<5 minutes
4、Laser Welding Case Studies | Typical Application Cases
Material: 6061-T6 extruded profile, wall thickness 2 mm
Weld seam: continuous corner joints on all sides, with a total length of 1.2 meters
Challenge: Sealing ≤ 1 × 10 ⁻⁶ Pa · m ³/s, deformation ≤ 0.1 mm
Solution: 6 kW fiber laser, scanning head swinging 20 mm, speed 1.2 m/min
Result: The first pass rate was 99.5%, the helium mass spectrometry leak detection passed, and 120000 pieces were produced per month
Material: Copper base plate 3mm+Stainless steel top cover 1mm
Weld seam: Grid sealed weld seam, grid spacing of 8mm
Solution: 4 kW Disk, Cu lead+stainless steel follower, real-time power closed-loop
Result: Tensile and shear strength ≥ 180 N/mm, thermal resistance decreased by 15%, and there was no leakage in a batch of 500000 pieces
Material: Ti-6Al-4V Wall thickness 0.2 mm, diameter Φ 8 mm
Weld seam: circumferential seam docking, requiring no oxidation discoloration
Solution: 3 kW laser+local argon chamber, oxygen content<50 ppm
Result: The weld seam is silver white, with a tensile strength of ≥ 950 MPa and a fatigue life of 10 times
5、 Quality and traceability
ISO 15614-11 Laser Welding Process Certification
Online vision: real-time photography of weld width, offset, and undercutting, automatic marking of defects
QR code engraving: furnace number+welder number+power+speed, scan the code for full traceability
Each batch: First piece section metallographic+tensile+bending, 10% appearance inspection for mass production
AddressNo. 66 Xingpu Road, Lujia Town,Kunshan City, Factory Buildings 3 and 4 
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