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

processes_laser_weldingAltair Technologies routinely uses its laser welder to perform special welds in the construction of its electron guns as well as the assembly of relatively delicate components for its customers. Unlike TIG welding, laser welding results in low heat generation with little or no distortion or resulting stress. Filler material is rarely used and therefore laser welds are less bulky and more precise than other types of welds. In some cases, laser brazing is employed, where a minute amount of filler metal or braze alloy maybe placed between adjoining components to improve weld compatibility or weldability. Any weld compatible metals can be laser welded and we commonly laser welded parts are made from Titanium, Nickel, Stainless Steel, Platinum, Kovar and Moly. Laser welding is performed in an inert gas atmosphere using either Argon or Helium and can provide spot, stitch and continuous hermetic (vacuum tight) welds in both pulsed and continuous operation modes Laser welding is accomplished at very high speeds 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. Contact the sales team to learn more about laser welding.

LASER ADVANTAGES
logo_16-16Very high precision welding or cuttingprocesses_laser-welder
logo_16-16Close tolerance (± .001 inch)
logo_16-16Excellent repeatability
logo_16-16Unit cost reductions
logo_16-16Material versatility
logo_16-16Contact-free, very localized energy means low thermal and mechanical strain on parts
logo_16-16Cleaner than electric arc or gas welding
logo_16-16No consumables, unless filler material is used for welding
logo_16-16Low heat input/minimal heat affect
logo_16-16Fine grain structure/excellent weld quality
logo_16-16High energy density/high weld speeds
logo_16-16No filler material
logo_16-16Line of sight access for hard to reach areas Clean processing to eliminate debris (shavings, dust, etc.)
logo_16-16Flexibility – fast setups achieved with computer controls
logo_16-16Little or no burring can make secondary finishing unnecessary
logo_16-1690% less heat input results in welds with minimal distortion
logo_16-16Minimal distortion in heat affected zones
logo_16-16No tooling to wear out or change over
logo_16-16Non-contact processing eliminates unwanted stress on materials