Decreasing batch sizes pose a major challenge for companies. One example is the restoration of classic cars, for which spare parts are often no longer available. To restore such vehicles to a flawless appearance, individually manufactured spare parts are required. Conventional forming techniques are unattractive in this context because of high tooling costs.
The Czech-German project SELF (Sequential Electromagnetic Forming - Strategy for Highly Flexible Production of Large Sheet Metal Parts) explored a solution by combining electromagnetic and incremental forming. In this process, a sheet was formed successively with the aid of numerous electromagnetic pulses as a tool coil moved step by step over the sheet without contact. Scientists involved in the project demonstrated the technological feasibility of the process combination using an industrial example, indicating that the method could be well suited for the production of large-area components.
Benefits:
- Low costs thanks to versatile tooling
- Can be used for a wide variety of materials, especially aluminium
- Protection of the workpiece surface due to non-contact force application