Abstract Four different types of dissimilar, laser beam welded joints made of additively manufactured AlSi10Mg and conventionally manufactured EN AW-6082-T6 at 2 mm thickness have been assessed by the nominal and notch stress approaches. Fatigue results, for butt joints and lap joints with fillet welds, fulfil the lowest fatigue class for conventional aluminum welds of FAT 12. Conventionally welded lap joints, where the laser beam is driven through the sheets, show a significantly lower fatigue strength under shear and peel loading. Exisiting fatigue classes for notch stresses can only be applied for these joints in the long life fatigue regime.

中文翻译：

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焊接到轧制 EN AW-6082 T6 金属板的增材制造的 AlSi10Mg 激光束的疲劳评估

摘要 四种不同类型的激光束焊接接头由增材制造的 AlSi10Mg 和常规制造的 EN AW-6082-T6 制成，厚度为 2 mm，已通过名义应力和缺口应力方法进行评估。具有角焊缝的对接接头和搭接接头的疲劳结果符合 FAT 12 中传统铝焊缝的最低疲劳等级。 传统焊接搭接接头（激光束穿过板材）显示出明显较低的剪切疲劳强度和剥离加载。现有的缺口应力疲劳等级只能应用于长寿命疲劳状态下的这些接头。