Welding Parameters of Laser Welding Machines with Different Power

Laser welding machines are widely applied in industrial manufacturing owing to their high precision, small heat-affected zone and strong welding firmness. Their welding parameters vary significantly with power levels, and reasonable parameter matching is the key to ensuring welding quality.

Low-power laser welding machines, generally ranging from 500W to 1000W, are suitable for micro-welding of thin and small parts. The core parameters are set as follows: the welding current is controlled at 100-180A, the pulse width is 2-5ms, and the welding speed is 8-15mm/s. This power range adopts a small focal spot diameter, usually 0.1-0.3mm, with low welding heat input. It is mainly used for thin stainless steel sheets below 1mm, aluminum alloy foils, and precision components in electronic products, such as mobile phone parts and sensor welding, avoiding deformation and burn-through of thin materials.

Medium-power laser welding machines of 1500W-3000W are the mainstream model in industrial production. The matching welding parameters are more balanced: the welding current is 200-350A, the pulse width is 5-10ms, and the welding speed is 5-10mm/s. The focal spot diameter is adjusted to 0.3-0.6mm, and the defocusing amount is controlled between -1mm and +1mm. This power category can weld metal plates with a thickness of 1-5mm, including carbon steel, stainless steel and aluminum alloy, and is widely used in auto parts, hardware tools and kitchenware manufacturing, taking into account welding efficiency and quality