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Você já viu a raiz de uma solda em alumínio por trás? 🛠️ Quando soldamos alumínio, a camada externa de óxido tem um ponto de fusão próximo de 2.070°C, enquanto o alumínio puro derrete em torno de 660°C. Essa diferença faz com que o metal líquido fique contido por uma "casquinha" sólida de óxido durante a penetração. Por isso, no processo TIG , é fundamental o uso de corrente alternada e a limpeza prévia com escova de aço inoxidável para quebrar essa camada de óxido...
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