Welding Wisdom for Professionals and Beginners Alike.

To prevent cracking when welding aluminum, choose a filler alloy that matches the base alloy’s chemistry. Preheat the weld area to 300-350°F to slow cooling rates. Apply compressive force during…

Hydrogen air welding aluminum creates welds by using hydrogen gas. In molten aluminum, hydrogen has high solubility. As the aluminum cools and solidifies, the solubility decreases. This change causes hydrogen…

The I-CAR aluminum GMA (MIG) welding test measures technicians’ skills in aluminum welding for collision repair. This test is a key part of the welding training program. It includes a…

Exposure to aluminum welding fumes poses serious health risks. Acute symptoms include eye, nose, throat, and lung irritation. Chronic exposure can lead to serious conditions like lung disease and nervous…

Aluminum GMA (MIG) Welding Training and Certification by I-CAR offers hands-on practice. Participants learn MIG welding techniques and welding processes. The training covers industry standards and certification details. Certification lasts…

Aluminum resistance spot welding uses high power due to aluminum’s good thermal and electrical conductivity. The welding current is 2–3 times higher than for steel. However, the welding time for…

Preheating cast aluminum for welding enhances results. The ideal preheat temperature is usually between 212°F and 572°F (100°C to 300°C). For aluminum alloys with copper content, aim for the higher…

Hybrid laser arc welding (HLAW) combines laser welding and gas metal arc welding. HLAW creates strong welds in aluminum and magnesium alloys. It offers deep penetration and a narrow heat-affected…

To weld aluminum with stick welding, use a DC stick welder set to DCEP polarity. You will see more spatter and a sticky weld puddle. This method is different from…