Understand the processes and techniques used in aluminum welding learn the basics and become a better mig and tig welder with these tips. Arc welding shielded metal arc welding smaw is applied for joining galvanized steel much as it is for bare steel one should avoid that zinc vapor become entrapped . As metalworking goes welding history is relatively recent starting in approximately 1000 bc the history starts with the discovery and shaping of metals in ancient . 1 the welding of aluminium the most common commercial aluminium and aluminium alloy welding methods use an electric arc with either a continuously fed
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