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Aluminum Welding Guide
View technical guides for guidance on welding various metals and selecting the right Hobart Brothers filler metal solution for your application.
Aluminum Welding Guide
Weld Preparation & Treatments – Preheating And Interpass Temperatures
Preheating can be used to reduce the thermal effects of section size when welding base metals of dissimilar thicknesses. Heat treatable base metals and 5xxx base metals containing more than 3% Mg should not be subjected to preheating and interpass temperatures above 250° F (121° C) for more than 15 minutes. Refer to AWS D1.2.