HanWei Laser welding machine for Current Collecting Plate of Cylindrical Cells

​Welding Technology Challenges :
Welding is a critical process in current collector disc manufacturing, facing the following key issues:
1.​Burn-through​ :
Excessive heat input penetrates the thin collector disc, damaging structural integrity.
2.​Weld deviation​:
Misalignment during high-speed welding compromises electrical conductivity and mechanical strength.
3.​Thermal management​ :
High welding temperatures risk ​thermal damage to the separator​, potentially causing short circuits.
4.​Structural deformation​:
Residual stress from welding or assembly pressure warps the disc, degrading ​welding zone planarity​.
5.​Weld reliability​ :
Narrow process windows (e.g., for copper discs) increase risks of cold welds or brittle intermetallic compounds.

Traditional ​Solutions :
1.​Black coating treatment​ :
Enhances laser absorption efficiency by ​**>30%​**, reducing heat input and burn-through risk.
2. Optimizing welding parameters:
2-1.Laser power/pulse control to limit heat diffusion to the separator.
2-2.Turret flying welding systems (e.g., ​Newlas' 200°/s high-speed welding) ensure precision under dynamic conditions.
3.​Enhanced inspection:
Real-time monitoring of lens contamination, power stability, and weld depth via closed-loop systems (e.g., ​Newlas' intelligent station compensation).
4.​Structural reinforcement:
Radial/circular ribs resist deformation during casing insertion.
5.​Material optimization:
Surface treatments (e.g., nickel plating) and thickness adjustments improve weldability.


            HanWei Laser welding technology solution for Current Collecting Plate of Cylindrical Cells

 

HW-AMB-ECO laser welding technology achieves efficient, precise, and reliable welding results through its unique laser beam design and energy control. It is an advanced welding technology with broad application prospects :