Welding process, die-cast component and actuator housing

The invention relates to a welding process for welding a die-cast part made of an Al-Mg-Fe alloy to at least one further metal part in a fluid-tight manner. For the aluminum alloy, a mixture is used having an Mg content of 4% < = Mg < = 4.6%, an Fe content of 1.31% < = Fe < = 1.7%, and further alloying components containing a Si content of at most 0.2%. And the Fe content comprises an Al-Mg-Fe eutectic and a hypereutectic component of two alloy components of Fe and Mg. The welding uses a blue diode laser and does not use a welding filler. The invention also relates to a die-cast component which is welded to at least one further metal component, the welded connection being carried out according to the aforementioned welding process. The invention further relates to an actuator housing comprising such a die-cast part. 本发明涉及一种焊接工艺，将由Al-Mg-Fe合金制成的压铸部件以流体密封的方式焊接到至少一个另外的金属部件上。对于所述铝合金，使用Mg含量为4％≤Mg≤4.6％，Fe含量为1.31％≤Fe≤1.7％，以及包含Si含量最大为0.2％的其它合金成分的混合物。所述Fe含量包括Al-Mg-Fe共晶体以及Fe和Mg两种合金成分的过共晶组分。所述焊接使用蓝色二极管激光器并且不使用焊接填料。本发明还涉及