The copper nozzle of a laser welding machine is a common handheld laser welding nozzle. Its main functions include: improving welding effect: the manufacturing accuracy of copper nozzle is high, which can help improve the heat transfer of laser welding, thereby making the welding effect better and more stable. Protecting the focusing lens: The copper nozzle can assist in rapid gas spraying, effectively preventing impurities such as molten stains from rebounding upwards, thereby protecting the focusing lens and extending its service life. In industries such as automobiles, aviation, and semiconductors, laser welding is often required, and copper nozzles are an indispensable part of it.