Welding Wisdom for Professionals and Beginners Alike.

Preheating aluminum before welding offers several benefits. It reduces porosity and lowers the risk of cracking. Set the temperature between 250°F and 400°F, and heat one section at a time….

Heating aluminum grains in vacuum cold welding requires cleaning and smoothing surfaces. When the metals are pressed together in a vacuum, they bond without melting. This process avoids oxidation and…

The best tungsten colors for Heliarc (TIG) welding aluminum are green (pure), red (thoriated), gold (lanthanated), and orange (ceriated). Green is ideal for a stable arc. Consider your welder’s specifications…

Aluminum heat treatment after welding restores the -T6 temper. If welded in -T6, a solution heat treat followed by aging improves mechanical properties. This process heats aluminum to high temperatures,…

E3 Purple tungsten is used for heliarc welding aluminum alloys with DCEN. It provides reliable arc striking and a low burn-off rate. This tungsten is also effective for magnesium, nickel,…

Hobart’s filler metal guide focuses on using ER4043 for aluminum welding. This filler metal has no magnesium, making it suitable for 5xxx series alloys that contain up to 2.5% magnesium….

Set the high-frequency generator to “Continuous” for welding aluminum with alternating current (AC). This setting keeps the arc stable. Adjust the frequency higher for improved performance on thinner aluminum. Use…

The Hobart Guide for Aluminum Welding offers vital technical support for aluminum design engineers, process engineers, and welders. It includes information on common arc welding processes, filler metal solutions, and…

High purity aluminum welding creates strong welds with less than ten parts per million of contaminants. This welding happens in cleanroom settings to reduce exposure to pollutants. Using a 0.035-inch…