By measuring the mechanical properties and corrosive property of thealuminium alloy 6063 at preweld and postweld, the causes of variations injoint propery at postweld are analyzed.

• 本文通过对铝合金6063焊接前后材料机械性能、耐腐蚀性能等的测试,分析了该合金焊后接头性能发生变化的原因。