Böhne, C.C.BöhneMeschut, G.G.MeschutBiegler, M.M.BieglerRethmeier, M.M.Rethmeier2023-01-042023-01-042020https://publica.fraunhofer.de/handle/publica/26436210.1080/13621718.2020.1795585Liquid metal embrittlement (LME) cracking can occur during resistance spot welding (RSW) in zinc-coated advanced high-strength steels (AHSS) for automotive production. In this study, a methodological variation of hold time is performed to investigate the process-related crack influence factors. A combination of numerical and experimental investigations confirms, that the extent of heat dissipation and re-heating of the sheet surface can be influenced and thus the degree of crack formation can be controlled in a targeted manner by the parameterisation of the hold time. The temperature and stress history of crack-free and crack-afflicted spot welds are analysed and a conclusion on the borders defining the LME active region is derived.en658669671670journal article