Spotwelded metal sheets with softened heat affected zone
The spotwelding process is still the most commonly used joining process for body-in-white manufacturing. More and more, high-strength steels are being utilized and welded. However, high-strength steels such as 22MnB5 and HCT980C will form a softened heat affected zone around the spotweld due to the heat treatment during the welding process. This softened heat affected zone has different geometrical dimensions depending on the welding process parameters and reduces the load-carrying capacity of the metal sheet.
The tool presented on this website serves to assess the load-carrying capacity of a metal sheet with a softened heat affected zone. The analytical model which is implemented in this tool was developed as part of an AiF-project.