Electromagnetic pulse welding applies extreme localized pressures, which leads to a quasi melt-free welding process for almost any material combination. Due to its nature, this welding principle avoids the formation of intermetallic phases in the weld seam.
Friction stir welding is a mechanical process that joins materials in their solid phase. Undesirable melt related metallurgical effects are avoided such as the formation of intermetallic phases.
The demands for machines and controls are substantial when fabricating spatially curved structures using friction stir welding. IWS engineers developed a cost effective alternative to conventional machine concepts.
Fraunhofer IWS engineers and scientists have spent more than ten years researching joining technologies and industrial concepts to reduce the production costs and time of manufacturing lightweight aircraft fuselages.
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