Abstract
AbstractFor welding of delicate apparatuses made of thin sheet material, the distortion is strongly governed by the heat input. Parameter variations for pulsed‐laser welding were performed to study the influence of the energy input per unit length and per time as well as the impact of the pulse width and other parameters on the weld seam geometry. Even for a constant energy input per unit length, deviations of the cross section of the weld seam were observed due to different dissipation of the deposited energy. For the same energy input per unit length the geometry of the weld seam is strongly influenced by the pulse width. Also deviations from expected behavior were found and could be explained, e.g., by a shortfall in energy density to melt the material.
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