A laser welder is a machine that uses focused beams of light, or lasers, to join materials together. This process is known for its precision and ability to weld thin sections of metal or other materials without causing much heat distortion. Laser welding is commonly used in industries like automotive and aerospace, where strong and accurate welds are essential. The technology behind laser welding involves directing a high-energy laser beam onto the surfaces of the materials to be joined. The intense heat generated melts the edges of the materials, allowing them to fuse as they cool. This method is efficient and can be automated, making it suitable for mass production.