Case Study

New Energy Battery Tray Welding

Precision aluminum alloy welding for EV battery trays, enclosures, and structural parts.

Background

EV battery trays require welding 1.0–3.0mm aluminum alloys (6061, 5052). Aluminum has high reflectivity and excellent thermal conductivity — traditional welding suffers from poor fusion, heavy spatter, and severe deformation. Laser welding solves all three.

Solution Specs

ItemDetails
Machine ModelZhijie MJ-15-BFL or MJ-20-BFL
Laser Power1500W / 2000W
Shielding GasNitrogen N₂
Welding MaterialAluminum alloy 6061 / 5052, 1.0 – 3.0mm
Welding TypeLap joint, T-joint
OptionalRotary welding head (for complex joints)

Key Metrics

MetricSpec
Weld Width≤ 1.5mm
Tensile Strength≥ 70% of base metal
DeformationMinimal, no post-weld straightening needed
ConsistencyStable mass production
  • 1500W — for 1.0–2.5mm thin sheet battery trays
  • 2000W — for 2.5–3.0mm thick enclosures and structural parts

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