Video
How to prevent porosity with MIG-welding of aluminium
The film follows Max Miller, production manager in welding manufacturing, through a modern robotic welding line. He reports acute porosity problems in aluminum welding and clearly explains the root cause: hydrogen is the only gas that can dissolve in aluminum—very strongly at high temperatures. As the material solidifies, the hydrogen becomes trapped and forms pores.
Using a “detective-style” investigation, Max systematically checks all possible influencing factors (base material, filler wire, shielding gas, and environment) and demonstrates how many small weaknesses can add up to a major quality issue (e.g. storage conditions, hose condition, open factory doors, high humidity).
As a positive counterexample, MIGAL.CO welding wire is presented: thanks to gas-tight vacuum packaging in aluminum composite foil, it remains uncritical. In addition, MIGAL.CO specialists provide practical, real-world tips.
The result: all weak points are eliminated—the production line runs stably, the team is relieved, and welding is once again pore-free.
Core message:
Porosity is often not caused by a single factor, but by the accumulation of many small influences. Those who inspect systematically and improve consistently can once again achieve reliable, pore-free welds.
Blechtechnik-Online
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