Investigation of the Strain Behaviour of Laser-Beam and High-Frequency-Welded Seams of Tailored Blanks Using Electronic Laser Speckle Interferometry

A review of laser welding techniques for magnesium alloys

“…Overfill was even thought to be another main defect in die cast AM60B alloy welded using 1-3 kW CW Nd:YAG laser [8]. The concavity or overfill of the top bead is mainly influenced by porosity [21], the width of the weld [21], welding speed [8,30], wire feed rate and energy input [60]. Overfill decreases with lower heat input (higher welding speed or lower power) [8].…”

“…Magnesium alloys usually have high notch sensitivity [60]. The mechanical properties of welds are greatly influenced by geometric notches in weld seams.…”

“…These notches are usually caused by root drop-through and metal burn-up [16]. Thus, an important criterion for reliable joints is to avoid notches in weld joints [60]. For castings, pores and oxides have important effects on joint quality.…”

Design Strategies for the Development of High Strength Coupling Elements from Requirement Optimized Composite Materials

“…Creation of High-Strength Structures and Joints by Setting up Local Material Properties [26,27,28,29]. Focal point is the determination of material reactions due to the joining process and the derivation of requirements due to the process and its boundary conditions to produce composite material components of continuous quality.…”