The foundation for Northern's growth for the last 40 years is high quality welding. Our 50+ welders handle projects from 24GA stainless to 1" Carbon - and everything in between.
Stainless steel, aluminum, and carbon steel behave very differently when welded. Our team's experience allows us to hold extremely tight tolerances despite these challenges.
It's rare that a project is outside of our comfort zone. Material thicknesses from 0.020" to 1", and various materials and alloys of Stainless, Aluminum, and Carbon steel are all in our wheel house.
Our certified welders don't just "pass code." Their welds must both be structurally sound and aesthetically pleasing.
A very large percentage of our projects now require AWS or ASME welding procedures (WPS). Most of our welders are certified in the basics - carbon steel and austenitic stainless steels - for both GMAW (MIG) and GTAW (TIG). Our top 1/3 of welders are qualified in more difficult alloys such as aluminum alloys and high nickle stainless steels.
A cold wire feed TIG process provides fast deposit rates and lower filler metal costs. The mechanized process can improve weld quality in the hands of a skilled operator. Cold wire feed is often preferred over MIG welding on projects where high quality welds are required but for the speed and lower cost of GMAW welding.
Aerospace spot welding requires exacting procedures and careful quality assurance. Northern has experience with spot welding and pull testing stainless steels up to 12GA in thickness.
Northern has a substantial investment in welding equipment designed for Aluminum welding. For GMAW, push-pull guns address the wire feeding issues associated with aluminum, and give the operator precise control over the heat input to the part. For GTAW, new digital pulse TIG machines make welding aluminum almost as easy as carbon or stainless steel.