| 1. | On the basis of the experiment , the reason that high strength 7a52 aluminum alloy produced the familiar defects such as hot cracking , porosity , slag patch , etc . in the welding was analyzed , and the preventive measures of every defect were adopted
摘要在实验的基础上分析了高强7a52铝合金焊接时出现的常见焊接缺陷：热裂纹、气孔、夹渣等产生的原因，并对每种缺陷提出了预防措施。 |
