Laser Welding

Laser welding uses an intense energy beam as its heat source. Different types of lasers can be used, depending on the material and application.

Diode lasers are the lowest power and lowest cost and are often used for welding of plastics. CO2 lasers are higher powered and may be used for both welding and cutting of plastics. Nd:YAG lasers are used at very high powers, making them suitable for welding and cutting sheet metal and thermoplastics.

Laser welding is accomplished at very high speeds with low heat generation and little or no distortion. Because no filler material is required, laser welds are less bulky and more precise than other types of welds.

Laser welds are also very repeatable because they eliminate any possible element of human error. No physical materials, such as electrodes or contacts, are needed to apply heat to the part.

With their well defined beams, lasers are excellent tools for welding thin materials, hermetic welds or welding in close proximity to heat-sensitive components. Even hard to reach areas can be laser welded if a line-of-sight exists.