Lars L. Cederqvist

Papers

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About

Lars L. Cederqvist is a leading researcher in advanced manufacturing, specializing in robotic friction stir welding (FSW) and the joining of dissimilar materials. His work focuses on the solid-state welding of complex geometries and mixed-material assemblies, particularly for high-pressure die-cast (HPDC) components like cylinder blocks. Cederqvist’s key contribution is the integration of temperature-controlled robotics into FSW, enabling precise, repeatable welds for challenging applications—such as joining aluminum to steel—that conventional methods cannot handle. His most-cited paper, a 2019 case study on robotic FSW with HPDC cylinder blocks and dissimilar materials, has garnered 12 citations, reflecting its practical relevance to automotive and aerospace industries. This work demonstrates how his innovations reduce defects and improve joint strength in multi-material structures. Cederqvist’s research is pivotal for lightweight design and sustainable manufacturing, offering a path to stronger, more efficient assemblies. His achievements include advancing FSW from lab-scale to industrial robotics, making him a key figure in the evolution of solid-state joining for complex, mixed-material production.