Update: 15.07.2013
The research project AnStrom Power Train Production for Future Mobility: Integrated Process Chain of Lamination Stack Production aims to develop an optimized, continuous process chain for the production of refined lamination stacks. The lamination stack production is a critical part of the process chain. Its improvement has been defined a major research goal for 2017 by the National Platform for Electric Mobility (NPE). This process chain is of universal character for miscellaneous types and applications of electrical drives. The process steps of lamination stack production for hybrid and traction motors are nearly identical, that is why a significant number has to be produced within the next few years - probably within the next generation of products. The designed concepts for line planning and quality control in the AnStrom project are mostly transferable to both motor types. By the use of generic selection tools, prototype tested quality criteria as well as test and measurement techniques a high contribution for the overall industry is achieved. Hand in hand with the concretization of the specification (requirement specification sheet) of the users (Daimler AG and Robert Bosch GmbH) the key cost drivers of the process will be identified. In a first step a series production based adjustment of the construction will be made in cooperation with the companies Kienle+Spiess and TRUMPF. Specific adjustments apply to plate thickness, drill holes and grooves in the plates. Different designs as single pole design or segmented stators are considered to reduce the material and process costs while increasing the degree of efficiency of the overall system.