The joining of components with as few weld layers as possible is an important aspect of weld seam design due to the resulting reduced manufacturing effort and reduced influence of thermal cycles on the base material as well as reduced distortion. For materials with good thermal conductivity, this is not easily possible. The energy density of the arc has been found to be the core parameter for determining the penetration. In the present work, it is shown how the use of a hyperbaric process environment (2 to 16 bar) allows an increase of the energy density of the arc and thus an increase of the penetration depth for selected aluminium and copper alloys. Furthermore, the effects of this novel approach on weld metal metallurgy are presented. It is shown that the penetration depth can be doubled by increasing the ambient pressure. Furthermore, a statistical model for the prediction of the penetration depth depending on the welding parameters will be presented.

由于减少的制造工作量和减少的热循环对基础材料的影响以及减少的变形，具有尽可能少的焊接层的部件的连接是焊缝设计的重要方面。对于具有良好导热性的材料，这是不容易做到的。已经发现电弧的能量密度是确定穿透的核心参数。在当前的工作中，显示了使用高压工艺环境（2至16 bar）如何增加电弧的能量密度，从而增加所选铝和铜合金的熔深。此外，提出了这种新颖的方法对焊接金属冶金的影响。结果表明，通过增加环境压力可以使穿透深度增加一倍。此外，