Galaxy performs gas tungsten arc welding (GTAW), also known as TIG welding, for thin-wall aerospace and defense components requiring a controlled fusion weld. Our capabilities include material as thin as .015 inch, with or without filler metal. We routinely apply GTAW to components made of steel, stainless steel, precipitation-hardening stainless steel, Inconel, and aluminum. Galaxy supports work performed to applicable AWS D17.1 and customer-specific requirements.
GTAW is a hands-on process in which the technician controls torch position, arc length, travel speed, heat input, and, when required, filler addition. Galaxy’s team helps to ensure the welding plan is appropriate for the customer’s goals, and our welders bring the necessary experience to perform the work as drawn.
GTAW uses a nonconsumable tungsten electrode to create an arc that melts and fuses the materials at the joint. An inert shielding gas protects the weld area from atmospheric contamination.
GTAW may be performed autogenously, fusing the base materials without filler metal, or with a compatible filler alloy when the joint design or required metallurgical properties call for added material. Autogenous welding can be well suited to closely fitted thin-wall components, while filler metal may be used to fill gaps, build weld profile, or achieve specific strength, corrosion, or service-temperature requirements.
Galaxy’s GTAW capabilities support aerospace and defense applications involving:
The correct welding approach depends on material, thickness, joint configuration, service conditions, and the governing specification. Galaxy works with customers early to review material, thickness, joint configuration, service conditions, and governing specifications. Bring us into the design conversation before the welding approach is finalized.
