Terminal (negative and positive) are the two parts connecting between connector and circuit. It can also be welded to make a module or pack in a certain design. These parts should also be well handled to have good current transmitting property. Therefore, fiber laser/hybrid wave welding is the best.
Fiber Laser marking machine
Fiber lasers are best suited for high-contrast markings like metal annealing, etching, and engraving. They produce an extremely small focal diameter (resulting in intensity up to 100 times higher than a CO2 system), making them the ideal choice for permanent marking of serial numbers, barcodes, and data matrix on metals. Fiber lasers are widely used for product traceability (direct part marking) and identification applications.